Photo: Suwit Ngaokaew/shutterstock.com. English PRODUCT PORTFOLIO

Transcription

1 Photo: Suwit Ngaokaew/shutterstock.com English PRODUCT PORTFOLIO

2 INTRODUCTION OF KURARAY S MOWITAL BUSINESS MOWITAL MEETING YOUR MOST DEMANDING NEEDS is the trademark for a wide range of different polyvinyl butyrals (PVB) marketed by Kuraray. It has excellent adhesion and film-forming properties, high binding power and outstanding optical transparency. is soluble in many organic solvents and can be combined with a wide range of reaction partners. The major applications are highly elastic, transparent, tough films for laminated safety glass and use as a binder in printing inks, coatings and corrosion-protection primers. consists of carbon, hydrogen and oxygen and degrades thermically without residue, producing carbon dioxide and water. Due to backward integration of the production Kuraray uses its own polyvinyl alcohol as starting material. This allows complete quality control of the starting polymers and thus ensures a consistently high quality level. is supplied as a fine-grain, free flowing powder in paper valve bags or, on request, in big bags. Since Kuraray constantly optimises the existing applications of and develops new ones. Kuraray places particular value on technical services and close cooperation with its customers. Polyvinyl butyral individualist with universal characteristics Enormous number of applications Essential component of prepregs and composite materials Improved flexibility and good adhesion to various substrates Photo: Delpixel/shutterstock.com Prevents steel from rusting as a component of corrosion-protection primers Excellent surface adhesion Superior flow and pigment wetting properties Special build-up of retroreflective coatings in road traffic signs and markings 02

3 Mowital Product Portfolio PVOH Content [wt. %] B 30 T B 60 T B 16 H B 20 H B 30 H B 45 H B 60 H B 75 H B 14 S BA 20 S B 30 HH B 60 HH Photo: Anteromite/shutterstock.com Mowital Polymer Structures Viscosity [mpa*s] Polymer Structure of B Polymer Structure of BA m o p OH OAc O O m o p r OH OAc O O O O Comparison of our polyvinyl butyrals and their properties B B B B B B increase in Molecular weight Solution viscosity Melting and softening range Toughness B...T B...H B...HH Photo: Dinga/shutterstock.com increase in Water resistance Solubility in non-polar solvents Compatibility with non-polar polymers 03

4 MOWITAL PRODUCTS Main application area Possible application area Strippable packaging coatings Automotive refinishing coatings Can coating/stoving enamels/film lacquers Electrostatic spray primers Corrosion protection/shop primers/wash primers Heat-sealable lacquers Radiator primers/topcoats Wood sealing varnishes Plastic surface finishes/nitrocellulose lacquers Gear paints/paper varnishes Adhesives/oil-resistant lacquers Road marking paints Additive for powder coatings B 14 S B 16 H B 20 H B 30 T B 30 H B 30 HH B 45 H B 60 T B 60 H B 60 HH B 75 H BA 20 S APPLICATION AREAS The table gives an overview of the wide range of applications. Properties and applications depend mainly on the degree of acetalisation and the viscosity of a grade. The numerical suffix of the grade designation (14, 16, 20, 30, 45, 60 and 75) indicates the increasing degree of polymerisation (and thus the increasing viscosity). The designations T, H, S and HH indicate different degrees of acetalisation. 04

5 Coil coatings Zinc-rich primers Inkjet printing inks Flexographic/special gravure inks Pigment preparations Thermo-transfer inks Temporary binder for ceramics Foundry aids Adhesive additives/rheology modifiers Hotmelts Binder for abrasive papers Light bulb cement Structural adhesives Cardboard packaging impregnations Candle coatings Prepregs/Composites Thermoplastic processing 05 Photo: lenetstan/shutterstock.com

6 SOLUBILITY OF MOWITAL B T % B H % B S % B HH % BA 20 S % Unlimited Solubility Limited Solubility Insoluble ALCOHOLS Methanol Ethanol Propanol i-propanol Butanol i-butanol Diacetone alcohol Benzyl alcohol GLYCOL ETHERS 1-Methoxy propanol-2 Butyl glycol 3-Methoxy-butanol-1 (methoxy butanol) Dowanol (DPnB) ETHERS Dioxane Tatrahydofuran (THF) CELLUSOLVE Methyl Cellusolve Ethyl Cellusolve Butyl Cellusolve ESTERS Methoxy propyl acetate Methyl acetate Butyl acetate Acetic acid-methoxy-n-butylester (Butoxyl) Glycolic acid-n-butylester (Polysolvan 0) Dibasic esters (DBE) Ethyl lactate KETONES Acetone Methylethylketone Methylisobutylketone Cyclohexanone HYDROCARBONS Aliphatic Toluene Xylene OTHERS Terpineol Butyl carbitol Acetic Acid Dimethyl sulfoxide (DMSO) 06 Completely soluble if solvent contains 10% alcohol. The solubilities statet here refer to the pure solvents (specified as 10 % solution for B 75 H as 5 % solution). In many cases solvent blends have superior dissolving capacity.

7 Photo: Deni_M/shutterstock.com ANALYTICAL DATA OF PVB Photo: ESB Professional/shutterstock.com Photo: Syda Productions/shutterstock.com Analytical Data Grade Specification viscosity (10 % ethanol) [mpa*s] Hoeppler method (20 C) Corresponding viscosity range ² ) (10 % ethanol / toluene 1: [mpa*s] Brookfield method (20 C / 30 rpm) PVOH content (Hydroxyl) [wt %] [mol %] PVOAc content (Acetate) [wt %] [mol %] Glass transition temperature = Tg [ C] Solid [wt %] B 14 S B 16 H B 20 H B 30 H B 30 HH B 30 T B 45 H B 60 H B 60 HH B 60 T B 75 H BA 20 S % Viscosity 2) Calculated 07

8 Hartlebury, England Helsinki, Finland Paris, France Wilmington, Delaware Frankfurt, Germany Milano, Italy Qingdao, China Shanghai, China Kuraray Co., Ltd. Tokyo, Japan Kurashiki, Japan Plant R&D Labs Sales Offices Headquarters For further products of the Kuraray Group, please visit You can find further information on our products at Kuraray America, Inc Bay Area Blvd. Suite 600 Houston TX77058, USA Kuraray Europe GmbH Philipp-Reis-Str Hattersheim am Main Germany Kuraray Co., Ltd PVB Division 1-1-3, Otemachi Chiyoda-Ku, Tokyo, Japan Copyright 2018 Kuraray. All rights reserved. is a registered trademark of Kuraray. The information, recommendations and details given in this document have been compiled with care and to our best knowledge and belief. They do not entail an assurance of properties above and beyond the product specification. The user of our products is responsible for ensuring that the product is suitable for the intended use and conforms to all relevant regulations. Kuraray Co., Ltd. and his affiliates do not accept any guarantee or liability for any errors, inaccuracies or omissions in this document. 5/2018