Siloxane modified polyolefin copolymers

US5476901A · kind A · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Steven Daryl Smith · Fairfield, US
• Andrew Wnuk · Wyoming, US
• Margaret S. Gerber · Wyoming, US

Key dates

• Filing date: Jun 24, 1993
• Grant date: Dec 19, 1995
• Expiry date: Jun 24, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31667
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A siloxane modified copolymer with the following general formula: ##STR1## wherein: x=1 to 1000; m=2 to 100; n=0 to 1000; z=0 to 2; y=1 to 3; (z+y)=3; and p=1 to 200; wherein R and R.sub.1 are independently selected from the group consisting of hydrogen, alkyl groups having 1 to 6 carbons, phenyl, benzyl or alkylphenyl having from 6 to 12 carbons; R.sub.2 is selected from the group consisting of C.sub.1 to C.sub.6 alkyl, phenyl, benzyl or alkylphenyl having from 6 to 12 carbons; R.sub.3 is methyl, ethyl or propyl; and Z is O, S, NH or NR' wherein R' is phenyl, C.sub.1 to C.sub.4 alkyl or C.sub.1 to C.sub.3 alkylphenyl. A process for obtaining siloxane modified copolymer comprising: reactively extruding organosiloxanes having reactive terminal groups with polyolefins having reactive groups, the molar ratio of the functional groups being from about 1:1 to about 1:100,000 in a substantially solvent-free environment at a temperature from about 150.degree. C. to about 350.degree. C. for not more than 1 hour at 50 to 350 rpm.