Concentrated emulsions of olefin copolymers

US4622358A · kind A · utility

Assignee

• GmbH Rohm · DE

Inventors

• Horst Pennewiss · Darmstadt, DE
• Roland Schweder · Darmstadt, DE
• Helmut Knoell · Herbstein, DE

Key dates

• Filing date: Mar 29, 1985
• Grant date: Nov 11, 1986
• Expiry date: Mar 29, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M2217/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

What are disclosed are concentrated emulsions of an olefin copolymer in a liquid carrier medium which does not dissolve the copolymer and, as an emulsifier, a graft or block copolymer of the formula EQU A--Y, wherein A represents a sequence or segment of an olefin copolymer, of hydrogenated polyisoprene, or of an hydrogenated butadiene/isoprene copolymer, and Y represents a sequence or segment, formed by the polymerization of vinyl monomers which essentially are not of the acrylate or methacrylate type, which is soluble in the carrier medium, as well as methods for making the same.