Adhesion promoter additive comprising an unsaturated, amorphous polyester

US6794482B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Patrick Gloeckner · Ratingen, DE
• Alessandro Cerri · Nottuln, DE
• Werner Andrejewski · Dorsten, DE
• Giselher Franzmann · Witten, DE
• Peter Denkinger · Nottuln, DE

Key dates

• Filing date: Sep 9, 2003
• Grant date: Sep 21, 2004
• Expiry date: Sep 9, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An adhesion promoter additive contains at least one unsaturated, amorphous polyester containing 1) an acid component comprising at least one &agr;,&bgr;-unsaturated dicarboxylic acid, and 2) an alcohol component. The alcohol component contains at least 5% of a dicidol mixture of the isomeric compounds a) 3,8-bis(hydroxymethyl)tricyclo[5.2.1.02,6]decane, b) 4,8-bis(hydroxy-methyl)-tricyclo[5.2.1.02,6]decane and c) 5,8-bis-(hydroxymethyl)tricyclo[5.2.1.02,6]decane. Each isomer is present in the dicidol mixture in a proportion of from 20 to 40% by weight. A sum of the isomeric compounds a)-c) is from 90 to 100% by weight.