Acrylic resin dispersions

US4455342A · kind A · utility

Assignee

• Rohm Co., Ltd. · JP

Inventors

• Herbert Fink · Emmelshausen, DE
• Heiner Kniese · Seeheim-Jugenheim, DE
• Norbert Suetterlin
• Klaus Mueller · Unsleben, DE
• Werner Siol · Pfungstadt, DE

Key dates

• Filing date: Jan 5, 1983
• Grant date: Jun 19, 1984
• Expiry date: Jan 5, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/2566
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

What are disclosed are aqueous dispersions of an acrylic resin which is suitable for the reinforcement of fibrous articles and is free of formaldehyde and acrylonitrile, said resin comprising (a) from 70 to 96.95 weight percent of alkyl esters of acrylic acid and/or methacrylic acid, or mixtures of such esters with styrene; (b) from 2 to 30 weight percent of an hydroxyalkyl ester of an unsaturated carboxylic acid; (c) from 1 to 10 weight percent of acrylamide or of methacrylamide; (d) from 0.05 to 3 weight percent of a crosslinking comonomer having at least two polymerizable double bonds; (e) up to 5 weight percent of an unsaturated carboxylic acid; and (f) up to 20 weight percent of one or more further monomers, as well as fibrous articles reinforced with such a resin dispersion and showing reduced loss of resin binder on dry cleaning and reduced absorption of plasticizers, and methods of making such articles.