UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES BAYER_COVER_2011.qxp:Maquetación 1 24/3/11 15:49 Página 3

# WE STRIVE TO OFFER A VARIETY OF SOLUTIONS WITH THE OBJECTIVE OF REACHING PERFECTION
THIS IS ACCOMPLISHED BY THE ONGOING WORK OF OUR TEAM, DRIVEN TO CONTINUALLY IMPROVE OUR PRODUCTS AND SERVICES
A CONSTANT SEARCH FOR NEW SOLUTIONS, EVERY ONE MORE ECONOMICAL, MORE ENVIRONMENTALLY FRIENDLY AND AHEAD OF ITS TIME

A ROAD FILLED WITH INSPIRATION...

# CONTENTS

Bayer MaterialScience 

### SCIENCE FOR A BETTER LIFE 4 Aqueous high molecular weight acrylic dispersions 

### BAHYDROL ® 

### AH 6 Aqueous high molecular weight polyurethane dispersions 

### BAHYDROL ® 

### UH 7 Aqueous acrylic polyol dispersions for waterborne 2K polyurethane systems 

### BAHYDROL ® 

### A 8 Aqueous polyurethane polyol dispersions for waterborne 2K polyurethane systems 

### BAHYDROL ® 

### U 9 Waterdispersible polyisocyanates 

### BAYHYDUR ® 

### 10 Radiation curing polyurethane dispersions 

### BAYHYDROL ® 

### UV 11 Polyisocyanates for 2K polyurethane systems 

### DESMODUR ® 

### 12 Aromatic prepolymers for 1k and 2K polyurethane systems 

### DESMODUR ® 

### E 13 Polyaspartic esters for very high solids coatings 

### DESMOPHEN NH ® 

### 14 Polyester polyols for 2K polyurethane coatings 

### DESMOPHEN ® 

### 15 Unsaturated acrylates and polyesters for UV radiation curing 

### DESMOLUX® 

### 16 Key to the abbreviations 

### 18

3 UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES

### An unbeatable variety is the basis for our expertise Our wide range of products is the result of our work in developing binders and processes. Bayer MaterialScience can offer a variety of customised raw materials and building blocks for the formulation of your wood coatings. In other words, Bayer MaterialScience supplies tried-and-tested solutions for many problems and wood coating applications. If you have a problem, please contact our technical staff who will apply their creativity to develop solutions and test them under near-service conditions – the kind of approach the market needs. Being a system supplier also enables us to develop raw material packages in which our products are tailored for use together. This saves you time, money and a great deal of trial and error. Because our range of products is one of the broadest and largest on the market, we are able to offer constructive solutions and highly effective support. 

### Close to the customer We at Bayer MaterialScience are innovative. This is borne out by nearly 100 years of experience which places us under an ongoing obligation.
Whether for trade or industrial use, the requirements specified by our customers define the focus of our development efforts, e.g. new technologies, time-saving application and cost-effectiveness. We supply products for all application methods such as spraying, roller- or curtain coating, rolling and brushing, i.e. including those where material wastage is avoided and high application efficiency achieved. There is growing demand for uncomplicated and short curing processes.
Our Desmodur ® and Desmophen ® products allow you to tailor the drying properties of your coatings to suit your needs – either two-pack, moisture-curing or air-drying, fast, very fast or UV-cured. Highest level in properties, productivity and at the same time environmentally friendly – our ranges in aqueous and UV curing raw material are suited to solve any formulation problem today and in future times. Our product ranges Bayhydrol ® , Bayhydur ® , Bayhydrol ® UV and Desmolux ® are impressing examples of our innovations over the last 20 years. Our short processes save time and increase productivity. Your customers will be grateful for your efforts. 

### BAYER MATERIALSCIENCE 

# SCIENCE FOR A BETTER LIFE

Innovation for quality and the environment I t has always been a task of our researchers to develop new products and processes that meet market needs. We cannot rest on our laurels but must constantly review and improve both products and processes. We have implemented a DIN EN ISO 9001 quality system and all our European facilities have received certification to this standard. This is the result of our efforts to supply our customers with consistent high quality. Your satisfaction with our products and processes is our measure of success.
A further task of our R & D is to ensure the environmental compatibility of our products. More than 30 years ago, Bayer successfully launched UV-curing furniture coatings. These were the first high-solids solvent-free coatings for furniture. A major contribution to the development of environmentally friendly coatings has been made with our water-thinnable Bayhydrol ® and Bayhydur® products for air-drying, force-drying and radiation-curing coatings. Our market orientation provides impulses for finding solutions to further problems, e.g. reducing emissions and the environmentally compatible disposal of waste.

woosystems5 

### A global partnership If you operate on an international basis, you can expect the same from your business partners. Bayer MaterialScience is one of the world's leading suppliers of raw materials for wood and furniture coatings. Our experienced team provides technical back-up all over the world. Special laboratories support our customer in all the key furniture manufacturing centres in Europe, North America, Japan and PR China. Bayer MaterialScience has agencies in more than 100 countries. A contributory factor to our leading market position is the exchange of information with our partners in the coatings industry. Innovative spirit and experience on both sides have shaped an active partnership over the last 90 years. In our dialogue with our customers we are giving ideas for developing new or improved products. We can also assist in licensing and cooperative ventures. Most of our products are registered in chemical inventories and therefore ready for sale in the most important markets. The experts from Coatings Business Development are pleased to help anywhere in the world. 

### THE MAIN INNOVATIONS FOR THE MARKET OF WOOD COATINGS: Bayer has set many global milestones in the development of coating raw materials over the last 90 years. 1905 Cellit: for low-flammable coatings 1929 Alkydal ® : the first synthetic binder 1943 Desmodur® : first use of aromatic polyisocyanates as curing agents in coatings 1955 Roskydal ® : wax-free unsaturated polyester resin 1960 Desmodur® N: a further step in the development of polyurethane coatings 1965 Desmodur® HL: aromatic/aliphatic polyisocyanurate (TDI/HDI) 1966 Desmodur® IL: TDI-based polyisocyanurate 1967 Roskydal ® UV allows curing in seconds 1979 Desmolux ® : urethane acrylate resins 1981 Desmophen ® A 450: first fast drying polyacrylate 1987 Bayhydrol ® : water-thinnable binder 1994 Bayhydur® and Bayhydrol ® for aqueous two-pack polyurethane coatings 1997 Bayhydrol ® UV 1999 Desmolux ® : first aliphatic urethane acrylate with residual NCO groups

2002 Bayhydur® : new generation of hydrophilic polyisocyanates with excellent chemical resistance
2004 Desmodur® E XP 2605: moisture curing 1K PUR at drying speed of NC laquers 2005 Bayhydrol ® PUR- and PUR-PAC-dispersions, free of solvent 2008 Bayhydrol ® U: solvent free OH bearing PUR dispersion for 2K WB for systems

UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES

## 1K dispersions for economic solutions and resistant coatings 

# BAYHYDROL ® 

# AH Bayhydrol ® Dispersions

for ... 

### AH Polyacrylate dispersions, high molecular weight

2K waterborne coatings

1K waterborne stoving coatings Radiation curing coatings 1K waterborne ambient curing coatings Polyurethane/Polyacrylate hybrid dispersions

Polyacrylate dispersions, OH-functional

Polyurethane dispersions, OH-functional Polyurethane dispersions, radiation curing Polybutadiene based copolymer dispersions

Polyurethane dispersions, high molecular weight Polyester dispersions 

### A

U

UH E UV B UA

The new generation of cosolvent-free acrylic dispersions has been particularly developed for one component application on wood. The process of emulsion polymerisation is used in producing these acrylic dispersions. 

### BAYHYDROL ® 

### AH: Aqueous high molecular weight acrylic dispersions

BAYHYDROL ® AH Solid content Neutralising Viscosity MFFT Properties and Application
AH XP 2741 40 NH 3 20 58 High chemical and stain resistance, good wood wetting, 0 for furniture and joinery markets. AH 2797 XP 43 NH 3 100 43 Self-crosslinking, fast and good blocking resistance, excellent sandability and chemical resistance. [mPa.s at 23°C] [°C] [%] agent 

### BAYHYDROL ® 

### : Our Bayhydrol ® Toolbox is classified with a nomenclature according to the chemical nature of the products, thus creating a maximum degree of structure and clarity.

Our Bayhydrol AH range provides economic solutions and resistant coatings, which are well suited for furniture, interior joinery and for parquet coatings, in some cases combined together with polyurethane dispersions.

woodsystems 

## '5,9,1**5((17(&+12/2*,(67 

## Fast drying polyurethane dispersions for tough and durable 1K and 2K coatings 

# BAYHYDROL ® 

# UH

UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES BAYHYDROL ® UH Type Solid content Neutralising Cosolvent Viscosity MFFT Properties and Application UH 240 aliphatic PUD 40 Na salt 0% 70 s 1) 0 High elastic, for flexibilization of hard PAC and PU-dispersions. UH 340/1 aliphatic PUD 40 Na salt 0% 70 s 1) 2 High elastic, for flexibilization of hard PAC and PU-dispersions. UH 2342 fatty acid mod. 35 TEA < 5% NMP 100 0 Good BHMR, abrasion resistant, flexible, fast drying. aliphatic PUD Bayhydrol UH 2557 is its corresponding solvent-free version. UH 2557 fatty acid mod. 35 TEA 0% 100 30 Good BHMR, abrasion resistant, flexible, fast drying. aliphatic PUD UH 2558 aliphatic PUD 38 TEA 0% 100 25 Hard, fast drying, abrasion resistant. UH 2593/1 fatty acid mod. 35 TEA 0% 100 40 Good BHMR, hard, very fast drying. aliphatic PUD UH XP 2719 aliphatic PUD 40 TEA 0% 100 21 Hard, fast drying, fast blocking and high abrasion resistance. UH XP 2592 aliphatic urethane 45 EDIPA 0% 300 < 20 Oxidatively drying, for waterborne 1K coating with excellent mod. alkyd weathering resistance on wood. dispersion 1) Efflux time 4mm cup, method AFAM 2008/1050 Water-reducible wood and parquet coatings have been in use on the market since the mid-1980s. They show the highest growth rates at present and within a short time have become one of the leading system types in the field of wood-, furniture- and parquet coatings.
This achievement is due to a considerable degree to their specific properties such as mild odour, ease of application and rapid drying. Bayer supplies proven raw materials for waterborne systems under the tradename Bayhydrol ®

. 

### BAYHYDROL ® 

### UH: aqueous high molecular weight polyurethane dispersions Coatings based on these resins can be easily applied manually or even industrially. They also satisfy high aesthetic demands since, in contrast to older waterborne acrylate-based coatings, they enhance the wood grain without discoloring it. Such systems are environmentally friendly, have a long life and produce coatings which are easy to apply and yield tough yet flexible films. The high level of properties profile achieved with Bayhydrol UH in 1K coatings can become even higher with the right choice of Bayhydur in more demanding 2K coatings.

[mPa.s at 23°C] [°C] [%] agent contentOur Bayhydrol ® A dispersions are OH group containing resins tailormade to be combined with our Bayhydur® range of waterdispersible polyisocyanates. The resulting waterborne 2K polyurethane coatings combine the highest chemical and mechanical resistance with versatile use and application. Possible applications include clear and pigmented furniture coatings, interior and exterior joinery and hardwood floor coatings. 

### BAYHYDROL ® 

### A: aqueous acrylic polyol dispersions for waterborne 2K PUR systems 

## Building blocks for high end and low VOC coatings systems matching solventborne performance

woodsystems 

# BAYHYDROL ® 

# A

BAYHYDROL ® Solid content N eutralising Cosolvent OH content Viscosity Properties and Application agent content A 242 42 NH 3 – 4.0 200 Topcoats with high chemical resistance, stain blocking primers. A 2427 42 NH 3 – 2.0 80 Fast drying/curing, chemical resistance. A 2470 45 DMEA/ 8.0% 3.9 2,000 Hard and flexible, solvent resistance, triethanolamine SN100/PnB good wetting properties. A 2651 40 DMEA 3.4% PnB 3.0 200 Hard and flexible, solvent resistance, good wetting properties, fast drying/curing. A XP 2695 41 DMEA/ 7.6% PnB 5.0 2,500 Hard and flexible, highest chemical resistance. triethanolamine A XP 2770 45 DMEA 3.6% PnB 3,9 1,000 Low VOC version of A 2470, faster drying. [% on solid content] [%] [mPa.s at 23°C]BAYHYDROL® Solid content Neutralising Cosolvent OH content Viscosity Properties and Application [%] agent content [%, on solids] [mPa.s at 23°C] U XP 2750 43 DMEA 0% 3.6 1000 For high gloss clear and pigmented topcoats with excellent scratch and mar resistance and self-healing properties. U XP 2755 38 DMEA 0% 3.0 3000 Very fast drying, high hardness and chemical resistance, excellent appereance on wood. U XP 2757 52 DMEA 0% 1.8 2250 Very elastic, especially recommended to achieve natural and softfeel effect on wood. U XP 2766 40 DMEA 0% 4.0 2000 Very high gloss, especially in pigmented coatings. Fast drying and high chemical resistance.

9The new generation of solvent-free OHfunctional polyurethane dispersions from Bayer MaterialScience is further improving the performance of waterborne environmentally friendly two-component polyurethane coatings. The coating film made with the new Bayhydrol ® U dispersions display a wide spectrum of properties, ranging from hard through to flexible or even a pleasant velvety soft feel, providing a tollbox for the formulation of almost every specific coating. Final coating from zero to low VOC content are possible, depending of the choice of Bayhydur and application requeriments. 

### BAYHYDROL ® 

### U: aqueous polyurethane polyol dispersions 

## Elastic and durable polyurethane dispersions for waterborne 2K PU systems

UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES 

# BAYHYDROL ® 

# UBAYHYDUR® Type Supply form NCO Content Viscosity Properties and Application 3100 HDI-based 100% 17.4 3,800 Versatile and economic. 304 HDI-based 100% 18.0 4,500 Versatile and economic, improved chemical resistance. 305 HDI-based 100% 16.2 6,900 Easy mixing and high gloss, specially suited for trade application, also for mixing by hand. XP 2487/1 HDI-based 100% 20.9 6,900 Very high chemical resistance. XP 2547 HDI-based 100% 23.0 600 Water dispersible polyisocyanate, low viscosity, high chemical resistance. XP 2655 HDI-based 100% 21.2 3,500 Very high chemical resistance, high gloss and easy incorporation. XP 2700 HDI-based 65% 10.6 80 Bayhydur 305, diluted in DPGDME as “ready-to-use” DPGDME supply form. XP 2759 IPDI-based 70% 11.0 6,500 Fast drying and high chemical resistance. MPA The key to the waterborne 2-component PU-systems for wood application is the use of hydrophilic polyisocyanates, which have to be completely homogenized into the aqueous phase. In 1994 Bayer offered the first of these products, under the tradename Bayhydur®

. 

### BAYHYDUR® 

### : hydrophilic polyisocyanates for 2K waterborne polyurethane systems
These surfactant-free hardeners are specially designed for combination with our Bayhydrol ® types, and meet the most important needs of today. By choosing the right type of Bayhydur® it is possible to adjust the performance of the coating system according to the requirements. 

## Easy mixing and high performance: surfactant-free hydrophylic polyisocyanates

woodsystems [mPa . s at 23°C] [% on supply form] 

# BAYHYDUR®BAYHYDROL® UV Solid content Cosolvent MFFT Viscosity1 pH Properties and Application [%] content [%] [°C] [s] 2282 39 0 0 < 50 7.8 PU-dispersion, high chemical resistance, good grain wetting, physical drying for all-around use (multicoat).
2317 37 0 0 < 80 7.8 PU-dispersion, high wet film transparency, good grain wetting, physical drying. 2280 39 0 25 < 90 7.5 PU-dispersion, outstanding physical drying, good standard product for pigmented coatings. XP 2649 40 0 0 < 50 8.0 PU-dispersion, especially for soft-touch coatings. XP 2687 49 0 0 < 500 mPa·s 8.0 PU-emulsion, good wood accentuation, high solids, good adhesion; especially as primer on wood. 2689/1 XP 42 0 0 < 50 7.8 PU-dispersion, highest crosslink density, low physical drying; especially for clear coats and deep matt coatings. XP 2690 39 0 0 < 80 8.2 PU-dispersion, weather-stable, tough; especially suited for wood exterior applications, very fast water release. XP 2775 40 0 0 < 150 mPa·s 8.0 PU-dispersion, excellent chemical and stain resistance, in pigmented white topcoats or matt clearcoats. 2792 XP 39 0 0 < 100 mPa·s 3.5 Cationic PU-emulsion, excellent wood accentuation, good tannin blocking and adhesion, especially suitable as primer for wood.

11 The most promising technology within the variety of environmentally friendly wood coating systems are UV-curing PU dispersions. UV waterborne technology is the fastest curing waterbone coating technology, has the highest crosslink density, offers close to 0% VOC and overspray recycling. These advantages make this technology particularly suitable for clear, pigmented, matt and effect coatings. 

### BAYHYDROL ® 

### UV : radiation curing resins 

## Waterborne radiation curing resins

1) Efflux time 4 mm cup, method AFAM 2008/1050

UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES 

# BAYHYDROL ® 

# UVA broad spectrum of polyisocyanates with different structures and supply forms enables you to select the combination of your choice for each formulation in wood and furniture coating. 

### DESMODUR® 

### : polyisocyanates for 2K polyurethane systems 

## Hardeners for high performance 2K polyurethane coatings

woodsystems 

### POLYISOCYANATES PROPERTIES
DESMODUR N L HL IL Drying speed Pot-life Sandability Elasticity Viscosity
DESMODUR N HL IL L Yellowing

DESMODUR® Type Supply form Viscosity NCO content Properties and Application L 75 TDI adduct 75% EA 1,600 13.3 Tough but flexible, all-purpose hardener for polyester and L 67 BA 67% BA 600 11.9 fatty-acid modified polyester. L 67 MPA/X 67% MPA/X 1,600 11.9 L 1470 TDI adduct 70% EA 1,900 9.7 Reactive hardener for polyester and fatty-acid modified polyester. IL EA TDI isocyanurate 51% EA 700 8.0 Highly reactive hardener for polyester and fatty-acid modified IL BA 51% BA 2,000 8.0 polyester. IL 1351 TDI isocyanurate 51% BA 1,600 8.0 Highly reactive hardener for polyester and fatty-acid modified polyester. IL 1451 TDI isocyanurate 51% BA 250 7.4 Highly reactive low-viscosity hardener with good compatibility for polyester and fatty-acid modified polyester. HL BA TDI/HDI 60% BA 2,200 10.5 Reactive hardener with low yellowing for polyester and fatty-acid HL EA isocyanurate 60% EA 1,100 10.5 modified polyester. N 100 HDI biuret 100% 10,000 22.0 Highly flexible hardener with resistance to yellowing for N 75 BA 75% BA 160 16.5 polyacrylates. N 75 MPA 75% MPA 250 16.5 N 75 MPA/X 75% MPA/X 250 16.5 N 3300 HDI isocyanurate 100% 3,000 21.8 Low viscosity, resistant to yellowing and chemicals. N 3390 BA 90% BA 500 19.6 N 3600 HDI isocyanurate 100% 1,200 23.0 Low viscosity hardener for non-yellowing high solids and waterborne coatings. N 3790 BA HDI isocyanurate 90% BA 1,800 17.8 Highly functional hardener for fast-drying, chemical resistant and non-yellowing coatings. N 3900 HDI isocyanurate 100% 730 23.5 Low viscosity hardener for non-yellowing high solids and waterborne coatings. XP 2679 HDI allophanate 80% BA 500 15.4 Highly functional hardener for scratch-resistant and non-yellowing trimer coatings. Specially recomended for self-healing coatings. [mPa . s at 23°C] [% on supply form] 

# DESMODUR®

## Aromatic prepolymers for high performance systems with outstanding mechanical resistance

13 DESMODUR® E Type Supply form Viscosity NCO content Pr operties and Application E 1160 TDI 60% MPA/X 550 5.4 For one-component moisture curing coatings. prepolymer Good resistance properties. E 1361 MPA/X TDI 61% MPA/X 500 6.8 For one-component moisture curing coatings. E 1361 BA prepolymer 61% BA 250 6.8 Good resistance properties and fast drying. E 1660 TDI 60% BA 1,600 5.3 For one-component moisture curing coatings in combination with other prepolymer D esmodur ® E types. Good resistance properties and very fast drying. E 1750 PR TDI 50% MPA/X 375 5.3 One-component moisture curing clear coat formulation for parquet. prepolymer Good resistance properties and fast drying. E XP 2605 TDI/MDI 50% BA 200 4.5 For one-component moisture curing clear coatings. Good resistance prepolymer properties and very fast drying. For parket and furniture. [mPa . s at 23°C] [%, on supply form] One-component polyurethane coatings based on Desmodur® E have, for many years, set an industry standard. Desmodur® E types are specially suitable for use in formulating transparent wood coatings, e.g. for parquet flooring and for wall and ceiling panelling. Their outstanding resistance to wear and non-slip characteristics mean that they are the systems of choice for public 

### DESMODUR® 

### E: moisture curing polyisocyanates for 1K and 2K polyurethane systems buildings, dance halls and multi-purpose halls. Such coatings withstand extreme loads over long periods and thus provide high cost-effectiveness. Coatings based on Desmodur® E always dry in the presence of moisture. Drying time, hardness development and application properties are depending strongly on the temperature and humidity conditions in the atmosphere. To take account of the wide variation in these conditions, Bayer offers a range of adapted products for use in every region of the world and every application requirement.

✦ E 1160 ▲ E 1750 PR ❊ E 1361 ❋ E 1660/E 1361 (8:2) 10 8 6 4
2
0 TACK FREE IN HOURS

>8

3.5 2.2 0.5

50 40 30
20
10
0 ABRASION IN mg*

18 16 16 21 0d 1d 3d 5d 7d 8d 180 160 140 120 100 80 60 40 20

0 TIME / DAYSPENDULUM HARDNESS

✦ ❊ ❋ ❋ ❋ ❋ ❊ ❊ ❊

▲ ▲ ▲ ▲
✦ ✦ ✦

UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES 

# DESMODUR® 

# EVery high solid Conventional medium solid 1 X 80 g/m 2 coat 2 X 40 g/m 2 coat Cost of raw materials higher lower Application cost lower higher Productivity higher lower Overall cost lower higher The European VOC legislation is leading to an increased demand for coatings with reduced content of organic solvents. Very High Solids (VHS) coatings offer a variety of possible application fields with still optimal durability, optical and mechanical properties as well as application robustness. Our Desmophen ® polyaspartatic ester range offer the possibility to formulate 2K PUR systems with very high solids content and very fast drying. The use of low viscosity HDI isocyanurates as Desmodur® N 3390 or Desmodur® N 3900 is highly recommended as partners to produce very high solid 2K-PUR coatings. 

### DESMOPHEN NH ® 

### : polyaspartatic esters for very high solids coatings

woodsystems

DESMOPHEN ® Type Supply form Viscosity Properties and Application NH 1420 Aminofunctional reactive thinner 100% 1450 Very high solid 2K-PUR and solvent-free coatings. NH 1520 Aminofunctional reactive thinner 100% 1400 Very high solid 2K-PUR and solvent-free coatings. NH 1521 Aminofunctional reactive thinner 90% BA 160 Very high solid 2K-PUR and solvent-free coatings.

DESMODUR® Type Supply form Viscosity NCO content Properties and Application N 3390 HDI isocyanurate 90% BA 500 19.6 Low viscosity, resistant to yellowing and chemicals. N 3900 HDI isocyanurate 100% 730 23.5 Low viscosity, resistant to yellowing and chemicals. [mPa . s at 23°C]

[mPa . s at 23°C] [%, on supply form] 

## Polyaspartic esters for high solid coatings with very high reactivity 

# DESMOPHEN NH ®15 Due to their enormous versatility raw materials for polyurethane coatings have gained highest shares in world ́s markets for wood and furniture coatings. The tremendous variability in resins structure leads to a high versatility in properties. The many requirements resulting from specific demands of different kinds of wooden substrates can be satisfied by using tailormade PU-coatings. 

### DESMOPHEN ® 

### : polyols for 2K polyurethane coatings

DESMOPHEN ® Type Supply form Viscosity OH content Properties and Application
651 MPA/X Branched polyester 67% MPA/X 25,000 5.5 For colourfast and chemically resistant 651 MPA 65% MPA 14,500 5.5 coatings and isolation primers on exotic wood. 800 Branched polyester 100% 850 (70% in MPA) 8.6 High chemical resistance, impact resistance 800 BA 85% BA 11,000 7.3 toughness and abrasion resistance. 800 MPA 85% MPA 11,000 7.5 1100 Branched polyester 100% 400 (70% in MPA) 6.5 Highly flexible, good compatibility with other Desmophen grades. 1200 Slightly branched 100% 300 (70% in MPA) 5.0 Highly flexible, good compatibility with other polyester Desmophen grades. 1700 Linear polyester 100% 17,500 1.3 Flexibilising resin to improve toughness, durability and abrasion resistance in coatings. 1300 X Fatty-acid-modified 75% X 3,450 3.2 For clear and pigmented primers, fillers and topcoats. 1300 BA branched polyester 75% BA 1,000 3.2 1300 PR 75% X 7,250 3.1 1400 PR Fatty-acid-modified 75% MIBK 13,000 3.2 Highly reactive, high surface hardness, easy to matting. branched polyester PL 300 Fatty-acid-modified 60% X 5,350 2.7 Hard, highly reactive and long pot-life. branched polyester PL 800 Fatty-acid-modified 70% X 1,500 2.5 Good pigment wetting, flexible, high yellowing resistance, branched polyester low application viscosity. PL 817 Fatty-acid-modified 75% X/MEK 10,000 3.3 Highly reactive. In combination with highly condensed types branched polyester in sealers to increase solid content. RD 181 PR Fatty-acid-modified 75% X 12,500 3,6 Good pigment wetting, low yellowing, for clear and pigmented branched polyester glossy coatings. [mPa . s at 23°C] [%, on supply form] 

## Polyester polyols for 2K solventborne polyurethane coatings

UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES 

# DESMOPHEN ®

Acrylyc polyols for polyurethane coatings for wood and furnitrue application are supplied under Desmophen A and Desmophen A HS tradenames by Viverso. Technical information is available in www.viverso.com.URETHANE ACRYLATES

ESTER ACRYLATE

AMINE-MODIFIED POLYETHER ACRYLATE

UNSATURATED POLYESTERS

IN ACRYLATE MONOMERS

ACRYLATES FOR DUAL CURE 

### Unsaturated Acrylates Unsaturated acrylate coating systems for radiation curing have wide ranging potential applications. They combine environmental compatibility with high quality and utmost efficiency. Most versatile are urethane acrylates. Bayer MaterialScience offers a broad product range of urethane acrylates based on the Desmodur® series, which varies from highest elasticity to high hardness. Using these products, properties like abrasion-, scratch- and impact-resistance are adjustable. A keypoint for successful formulations is the use of low viscosity Desmolux types. These products enable users to maintain the resins performance properties in the final coating, e.g. abrasion resistance: Urethane acrylates with residual NCOgroups are designed for dual-cure formulations. Dual-cure formulations crosslink by radical photopolymerisation and an additional reaction of isocyanate groups. These dual functional products exploit the key advantages of radiation curing and 2K PU-technology. Good adhesion can be achieved even on oily and inhibiting wooden surfaces. Additionally post-cure effects in shadow areas and improved chemical and mechanical properties are possible. 

### Unsaturated Acrylates for Dual cure 

## Unsatured acrylates and polyester

woodsystems 

# ➜

The combination of low-viscosity PES and PET acrylates provides a maximum reactivity and enables users to avoid monomers. The products are designed for fast moving units for wood panels. 

### Polyesther / Polyether acrylates 

# ➜

Unsaturated polyester resins (UP) in combination with acrylic reactive thinners result in positive synergism. The excellent performance characteristics of UPs such as sandability, matting effects etc. are achieved with much higher reactivity. 

### Unsaturated Polyesters in acrylate monomers 

# ➜

75 60 50 40 5,000 4,500
4,000
3,500
3,000 2,500
2,000 INFLUENCE OF THE QUANTITY OF REACTIVE THINNER ON ABRASION RESISTANCE

BASE RESIN IN % CYCLES/100 mm. grit-feeder (500 g/abrasive wheel) ■

■
■
■ URETHANE ACRYLATE/HDDA

2,600 3,100 3,600 4,900 

# DESMOLUX®DESMOLUX Type Supply form Viscosity Properties and Application [ mPa . s at 23°C] U 100 Tough but flexible, aliphatic urethane acrylate 100% 7,500 High abrasion resistance, especially for parquet. U 200 Tough but flexible, aliphatic urethane acrylate 100% 8,000 Very high abrasion resistance in many test methods, especially for parquet. U 400 Hard, aliphatic urethane acrylate 60% in PTTA 90,000 High scratch resistance and good chemical and mechanical resistances. U 500 Tough but flexible, aromatic urethane acrylate 100% 6,000 High abrasion resistance, especially for parquet and cork. U 680 H Hard, aliphatic urethane acrylate 80% in HDDA 29,000 Highly resistant films, especially for outdoor applications. VP LS 2220 Tough but flexible, aliphatic urethane acrylate 75% in TPGDA 26,000 High abrasion resistance, especially for parquet. VP LS 2265 Hard, aliphatic urethane acrylate 100% 800 High abrasion resistance, combination product for Desmolux U 100 or Desmolux U 200. XP 2491 Highly flexible, aliphatic urethane acrylate 80% in IBOMA 90,000 Extremely flexible, elongation at break > 250%, with hard resins. XP 2513 Tough but flexible, aliphatic urethane acrylate 100% 25,000 Highly flexible, improves elasticy in combination with hard resins. XP 2587 Hard, aliphatic urethane acrylate, 100% 1,500 Easily emulsified in water. Hard films with good sandability water emulsifiable. and brilliance. Good mechanical and chemical resistances. Improved adhesion to wood. XP 2733 Tough but flexible polyesteracrylate 100% 18,000 High reactivity, high crosslink density, for fast running roller coating application. XP 2744 Tough but flexible polyesteracrylate 100% 6,500 Low viscosity, good balance between hardness and flexibility VP LS 2266 Tough but flexible, ester-epoxy acrylate hybrid 100% 8,000 High reactivity. VP LS 2299 Medium-hard, amine modified polyether acrylate 100% 600 High reactivity, for low viscosity coatings. P 175 D Hard, gloss polyester 75% in DPGDA 17,000 Clear and pigmented primers and topcoats; very high reactivity, good sandability, adhesion and intercoat adhesion, improves scratch resistance of UV topcoats. VP LS 2381 Hard, unsaturated polyester 70% in DPGDA 12,000 For clear and pigmented primers and topcoats; very high reactivity, good adhesion and sandability. XP 2490 Tough, gloss polyester 76% in DPGDA 13,000 Clear and pigmented primers and topcoats; high gloss and especially matt coatings, excellent sandability. XP 2681 Tough, gloss polyester 85% in HEMA 37,000 For conventionell and UV curing systems.
D 100 Flexible, aliphatic urethane acrylate 100% 10,000 NCO content: 12.5%, for dual-cure technology; improves adhesion, coin test. XP LS 2396 Flexible, aliphatic urethane acrylate 100% 16,000 NCO content: 7.5%, for dual-cure technology; improves adhesion, coin test and flexibility. XP 2510 Hard, aliphatic urethane acrylate 90% in BA 20,000 NCO content: 6.7%, for dual-cure technology; improves adhesion, coin test, high UV reactivity.

17 UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATES

### General

• HDI: Hexamethylene diisocyanate

• MDI: Diphenylmethane diisocyanate

• MFFT: Minimum film formation

temperature

• PAC: Polyacrylate

• PU: Polyurethane

• PUD: Polyurethane dispersion

• TDI: Toluene diisocyanate

• UA: Unsaturated acrylate

• UP: Unsaturated polyester 

### Solvents

• BA: Butyl acetate

• BG: Butyl glycol

• DPGDME: Dipropylene glycol

dimethyl ether

• EA: Ethyl acetate

• MEK: Methyl ethyl ketone

• MIBK: Methyl isobutyl ketone

• MPA: 1-Methoxypropyl acetate-2

• NMP: n-Methyl pyrrolidone

• PnB: Dowanol PnB

• SN100: Solvent naphtha 100

• X: Xylene 

### Acrylate monomers

• DPGDA: Dipropylene glycol diacrylate

• HDDA: Hexanediol diacrylate

• IBOMA: Isobornyl methacrylate

• PTTA: Pentaerythrol tetraacrylate

• TPGDA: Tripropylene glycol diacrylate 

### KEY TO THE ABBREVIATIONS USED IN THE TABLES: BD Dispersions Wood Coatings Barcelona (Spain)Headquarter Bayer AG in Leverkusen (Germany)UV SYSTEMS DISPERSIONS PREPOLYMERS POLYISOCYANATESThis information and our technical advice - whether verbal, in writing or by way of trials - are given in good faith but without warranty, and this also applies where proprietary rights of third parties are involved. Our advice does not release you from the obligation to verify the information currently provided –especially that contained in our safety data and technical information sheets– and to test our products as to their suitability for the intended processes and uses. The application, use and processing of our products andthe products manufactured by you on the basis of our technical advice are beyond our control and, therefore, entirely your own responsibility. Our products are sold in accordance with our General Conditions of Sale and Delivery. The technical data given to each product are not to be regarded as specifications.

Edition: March 2011 BAYER_COVER_2011.qxp:Maquetación 1 9/3/11 14:15 Página 2