Polymer resins and use thereof

US5340879A · kind A · utility

Assignees

• BAYER HEALTHCARE LLC · DE
• Bayer Antwerpen N.V. · BE

Inventors

• Raymond Audenaert · Hamme, BE
• Stephan Kirchmeyer · Leverkusen, DE
• Kirkor Sirinyan · Bensberg, DE
• Wolfgang Henning · Zorneding, DE

Key dates

• Filing date: Mar 12, 1993
• Grant date: Aug 23, 1994
• Expiry date: Mar 12, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F255/023
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to polymer resins which are dispersible or soluble in water, wherein the resin is an amorphous, chlorinated, chemically modified copolymer or terpolymer prepared from polyethylene, polybutene and/or polypropylene and having an amorphous polypropylene content of at least 50% by weight, an average molecular weight Mw of 10,000 to 100,000 g/mol, a non-uniformity of 1.0 to 6.5, a chlorine content of 2.5 to 50% by weight, an anionic or cationic salt group content of 5 to 250 milliequivalents per 100 g of polymer resin and a content of polyoxyalkylene units of 0 to 40% by weight, the proportion of oxyethylene units being at least 30% by weight of the oxyalkylene units.