Process for coating fabric care preparations

US4752408A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Klaus Koester · Langenfeld, DE
• Franz-Josef Carduck · Haan, DE
• Heinz-Manfred Wilsberg · Goldkronach, DE
• Rolf Puchta · Haan, DE

Key dates

• Filing date: Oct 9, 1986
• Grant date: Jun 21, 1988
• Expiry date: Oct 9, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31928
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Solid fabric-care preparations showing a tendency towards troublesome interactions, or constituents thereof, are coated by application of dissolved or dispersed organic film-forming polymers soluble in alkaline medium. Suitable polymers contain in particular carboxyl groups and are preferably derived from vinyl esters. The carboxyl groups emanate from copolymerized carboxylic acids which make up from about 2 to 10 mole % of the copolymer. The copolymers are best prepared in the form of finely divided dispersions and optionally contain a protective colloid and/or an emulsifier.