Adding value toyour products –worldwideA newera in PVOH

Kuraray Poval™, Exceval™, Elvanol™ and Mowiflex™ are the trademarks for polyvinyl alcohols
made by Kuraray. Their key characteristics — outstanding film-forming properties and highbinding strength — add real value to your products. Our polymers are water-soluble, highlyreactive, crosslinkable and foamable. They have high pigment binding capacity, protective
colloid characteristics and thickening effects. The physical and chemical properties of Kuraray
Poval™ make it ideal for a wide variety of applications, ranging from adhesives through paper andceramics to packaging films. Many of our polymers are food contact-approved and thus suitablefor food applications. Ecologically Kuraray Poval™ is advantageous due to its biodegradability andthe fact that combustion does not generate residues. It is available in various particle sizes fromgranules to fine powders.
Kuraray produces its wide range of Kuraray Poval™ grades in Japan, Singapore, Germany andthe USA. Kuraray’s global production and service network make us your partner of choice forinnovative high-quality PVOH resins.
Kuraray – Here to Innovate.

A new erain PVOH

Kuraray Poval™ – Here to innovate

Headquarters
Kuraray Co., Ltd.
Tokiwabashi Tower
2-6-4, Otemachi
Chiyoda-ku
Tokyo, Japan 100-0004
Phone: +81 3 67 01 1000
infopoval.jp@kuraray.com

Kuraray Poval™
product portfolio
Please contact your local
Kuraray office to discuss theright Kuraray product foryour needs.

Kuraray America, Inc.
2625 Bay Area Blvd.,
Suite 600 Houston, TX77058
United States of America
Phone: +1 800 423 9762

Kuraray Asia Pacific Pte., Ltd.
250 North Bridge Road
#10-01/02 Raffles City TowerSingapore 179101
Phone: +65 6337 4123

info.kuraray-poval@kuraray.com

infopoval.sg@kuraray.com

Kuraray Europe GmbH
Philipp-Reis-Str. 465795 Hattersheim am Main,Germany
Phone: +49 69 305 85 351

Kuraray China Co., Ltd.
Unit 2207, 2 Grand Gateway
3 Hongqiao Road, Xuhui District,
Shanghai 200030, China
Phone: +86 21 6119 8111

info.eu-poval@kuraray.com

infopoval.cn@kuraray.com

02_2022

Kuraray Poval™

Dawn of a new
era in polyvinyl
alcohol

Exceval™ –Kuraray’s
water-soluble
ethylene vinyl
alcohol

Kuraray is bundling its global polyvinyl alcohol (PVOH) products under thename Kuraray Poval™. Kuraray Poval™ meets all requirements - from low tohigh viscosity, partially to fully saponified PVOH. The range contains morethan 120 products for a wide variety of applications and is supplemented by
two speciality ranges: Exceval™ and Mowiflex™. With more than 70 years ofexperience and extensive production
and applications expertise, we canBenefits
tailor the properties of our poly▪ extensive range of standard products and specialities
mers precisely to our customers’▪ competent technical service
specifications. "Here to Innovate" is▪ global network of production facilities, service
laboratories and logistics centerstherefore both our slogan and our▪ consistently high product quality▪ reliable products
promise to you. Kuraray’s PVOH
▪ investment in the development of new products andapplications
adds value to your products andbrings clear benefits.

Kuraray Poval™ – 120 products covering all important applications

100HR

3-98 6-98 3010

28-99

Degree of hydrolysis (mol%)

90
5-88

18-88

32-97
KL

56-98

95-88

Exceval™

Kuraray Poval™

Exceval™ is the trademark of Kuraray’s halogen-free hydrophobic polyvinyl alcohol. Although Exceval™ is water-soluble
similar to fully hydrolyzed Kuraray Poval™ grades it it absorbs
less moisture at ambient temperature compared to our standard polyvinyl alcohol grades. Hence Exceval™ is the polyvinyl
alcohol of choice for water resistant emulsions, for D3 andD4 adhesives. Furthermore, Exceval™ produces coatings withexcellent gas barrier properties towards oxygen, nitrogen andcarbon dioxide, even in humid environments.

The applications of polyvinyl alcohols are wide-ranging: theirmain uses are in the paper, textile, emulsion, PVC, construction, adhesives, packaging, and oil industries. As flexible,
tear-resistant barrier films with a neutral taste, they keep
food and other products fresh. In the paper industry they play
an important role, as carriers for optical brighteners, in barrier coatings against mineral oils/fat, and in paper for inkjet
printing.
As a component used in the cementation of oil wells Kuraray
Poval™ controls fluid loss and the setting time of mortar. It isalso used as a temporary binder to facilitate the production ofhigh-strength industrial ceramics. Its solvent resistance ensures the functionality of protective clothing.

Mowiflex™ –Thermoplastic
processable
polyvinyl
alcohol

49-88
S222-88
35-8080

Selected core range
products:

5-74 48-80

7060

Ultra low saponified
Partially saponified

50

Fully saponified
4030

Kuraray Poval™ –A champion
in versatility

Fine powder grades
LM25

Low ashDefoamed

01020

30

405060Viscosity range (mPa•s)

7080

90

100

Specialty
110
120
Exceval™

130

Mowiflex™
Mowiflex™ is Kuraray’s polyvinyl alcohol- based polymer compound for thermoplastic processing. This nontoxic resin iswater-soluble and forms clear, glossy films. It has high tensile
strength and can be processed using conventional thermoplastic technologies (blown film extrusion, injection molding,3D printing, etc.). Moreover, Mowiflex™ can be colored, allowing processing as a highly concentrated masterbatch.

Certain Kuraray Poval™ grades have unique properties for thepolymerisation of suspension PVC and the manufacture ofVAE emulsions. A high polyvinyl alcohol content in the production of sponges makes them resistant to chemicals andenhances their mechanical stability. The physical and chemical properties of polyvinyl alcohols make them suitable for awide range of applications.
Kuraray Poval™ is water-soluble, has specific colloidal characteristics, excellent film-forming properties, and high tensile
strength. In addition, it is elastic and resistant to heat andorganic solvents.
Above all, the range of applications is based on its chemical
properties, especially on the ability of its numerous hydroxyl
groups to react with substances such as reactant resins, aldehydes and other reactive compounds.