Polyacrylate joint sealants

US6828382B1 · kind B1 · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Helmut Loth · Essen, DE
• Klaus Helpenstein · Rheydt, DE
• Wolfgang Klauck · Meerbusch, DE
• Johann Klein · Goldkronach, DE
• Lydia Duhm · Goldkronach, DE

Key dates

• Filing date: Jul 12, 2000
• Grant date: Dec 7, 2004
• Expiry date: Jul 12, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2200/063
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

This invention relates to a jointing compound of an acrylate/acrylonitrile copolymer containing 2 to 8 carbon atoms in the alcohol component as binder and fatty compounds as plasticizer and also fillers and auxiliaries. Epoxystearic acid methyl ester in particular may be used as the fatty compound while a butyl acrylate/acrylonitrile copolymer in particular may be used as the acrylate/acrylonitrile copolymer. The combination of the two substances results in jointing compounds characterized by a dramatic improvement in elasticity (resilience). Accordingly, they are particularly suitable for substrates with different coefficients of thermal expansion.