Homo- or copolymers of 1,3-dienes carrying reactive silyl groups, their preparation and use

US4381377A · kind A · utility

Assignee

• Chemische Werke Huels Aktiengesellschaft · US

Inventors

• Wolfgang Kampf · Haltern, DE
• Roland Streck · Marl, DE
• Horst G. Haag · Marl, DE

Key dates

• Filing date: Feb 2, 1981
• Grant date: Apr 26, 1983
• Expiry date: Feb 2, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K9/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A homo- or copolymer of a 1,3-diene bound to reactive silyl groups, whereby it contains 0.4-12% by weight of bound silicon, is prepared by reacting, at a temperature of 190.degree.-300.degree. C., a 1,3-diene homo- or copolymer, with more than 1% of its aliphatic double bonds in conjugation and having a molecular weight (Mn) of 400-6,000, with a silane of the formula ##STR1## wherein R is an unsaturated aliphatic hydrocarbon radical of 2-20 carbon atoms, PA1 X is halogen, C.sub.1-6 alkoxy, C.sub.1-6 alkoxyalkoxy, C.sub.6-12 aryloxy, C.sub.1-8 alkanoyloxy, C.sub.1-6 ketoximato or C.sub.1-10 hydrocarbylamido, and PA1 Y and Z are independently one of the X groups, hydrogen, alkyl of 1-8 carbon atoms, cycloalkyl of 5-12 carbon atoms, or optionally substituted phenyl.