Kuraray Poval™ –Biodegradable
LV-Grades for
Personal CareApplications

Kuraray Poval™

Kuraray Poval™
LV-Gradesfor personalcare
Kuraray Poval™ LV-grades have been specially designed for cosmetic andpersonal care applications. For these grades we have compiled adapted regulatory brochures/dossiers and give statements on: Nanomaterials, Heavy metals, Micro-plastics, Fragrances, Methanol, Animal testing and Biodegradation.
The Kuraray Poval™ LV-grades are produced under GMP conditions and havea specified Methanol (MeOH) content below 0,3% ex Germany and even below0.1% ex Japan. Polyvinyl alcohol is a nonionic water soluble polymer that iswell suited for water based cosmetic and personal care products. Polyvinylalcohol is a linear and crystalline polymer that is also biodegradable under theright conditions.
Biodegradability of Kuraray Poval™ LV-grades

Functionalities
=++

H2O

CO2WaterMicroorganisms

Polyvinyl alcohol (PVOH) is recognized as one of the very few vinyl polymers which is water soluble and biodegradable in water in the presenceof suitably acclimated micro-organisms. Also Kuraray Poval™ LV is biodegradable according to ISO 14851. This has been confirmed by internal
tests as well as at external laboratories.

Biodegredation rate (%)

Cellulose✓ Film former✓ Adhesion promotor✓ Encapsulater✓ Emulsifier✓ Lubricant✓ Viscosity controller

Kuraray Poval™ 22-88 LV

100Applications

80✓ Skin care (peel off mask, etc.)✓ Color cosmetics (mascara,brows, etc.)✓ Sun care
✓ Hair care (hair colorant,shampoo, etc.)

6040200071421Days

28

3542

Methanol ≤0.3 wt% (product made in Germany)
Viscosity1)

Degree ofMethanol2)

Ash3)[mPa•s]hydrolysis [mol%]content [%]content [%]Kuraray Poval™ 4-88 LV

3.5 - 4.5

87.0 - 89.0

≤ 0.3

≤ 0.4

5.0 - 7.0

Kuraray Poval™ 26-88 LV

24.5 - 27.5

87.0 - 89.0

≤ 0.3

≤ 0.4

5.0 - 7.0

Kuraray Poval™ 40-88 LV

38.0 - 42.0

87.0 - 89.0

≤ 0.3

≤ 0.4

5.0 - 7.0

Kuraray Poval™ 49-88 LV

45.0 - 52.0

87.0 - 89.0

≤ 0.3

≤ 0.4

5.0 - 7.0

≤ 0.1

≤ 0.4

5.0 - 7.0

Grade name (tentative)

pHMethanol ≤0.1 wt% (product made in Japan)
Kuraray Poval™ 22-88 LV

20.5 - 24.51) of a 4% aqueous solution at 20°C DIN 53015 / JIS K 6726

87.0 - 89.02) Kuraray method by HS-GC3) calculated as Na2O

Case study – facial / peel off mask
Both formulations give peel-off masks with even coverage, easy to apply, quick drying time and mechanical properties
allowing the removal of the masks in one piece. They represent a good starting point for the formulation of commercial
peel-off masks.

PHABCDINCI NameProductMask 1 (%W/W)

Mask 2 (%W/W)

Water

WATER

60,40

59,00

Isopentyldiol

ISOPENTYLDIOL

5,00

5,00

Polyvinyl Alcohol

Kuraray Poval ™ 26-88 LV

2,00

2,00

Polyvinyl Alcohol

Kuraray Poval ™ 49-88 LV

10,00

10,00

Water

Water

5,00

5,00

Isopentyldiol

ISOPENTYLDIOL

2,00

2,00

PEG-32POLYGLYKOL 1500S

5,00

-

PEG-32

PEG#1540-5,00

Pentylene glycol

Microcare®
Emollient PTGJ

-

1,50

Benzyl Alcohol,
Caprylyl Glycol

NEOFECT 304

0,60-

Phnoxyethanol

Phenoxyethanol-S-

0,20Ehtylhexylglycerin

ADEKA NOL GE-RF-0,30Alcohol

ALCOHOL

10,00

10,00

Appearance:
Clear

Process:
1.Mix and heat phase A at 80 °C,
2.Mix and heat phase B at 80 °C and add it to phase A (1200 rpm, 10 mins),
3.Cool down to room temperature and add phases C and D.

Adding value toyour products –worldwide
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 and ceramics to packaging films. Many of our polymers are food contact-approved and thus suitable forfood applications.
Kuraray produces its wide range of Kuraray Poval™ grades in Japan, Singapore, Germany and theUSA. Kuraray’s global production and service network make us your partner of choice for innovative high-quality PVOH resins.

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-poval.com

Kuraray America, Inc.
3700 Bay Area Blvd.,
Suite 680 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 Tower
Singapore 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

03_2024