Blends of .alpha.-olefin/vinylidene aromatic monomer or hindered aliphatic vinylidene monomer interpolymers with polyolefins

US6184294A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Chung P. Park · Baden-Baden, DE
• Johan A. Thoen · Amersfoort, NL
• Rene Broos · Bornem, BE
• Martin J. Guest · Lake Jackson, US
• Yunwa W. Cheung · Fryeburg, US
• Bharat I. Chaudhary · Pearland, US
• John J. Gathers · Pearland, US
• Lawrence S. Hood · Midland, US

Key dates

• Filing date: Mar 2, 1999
• Grant date: Feb 6, 2001
• Expiry date: Mar 2, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2666/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A fabricated article other than a film comprising a thermoplastic blend prepared from polymeric materials consisting of; (A) from 1 to 99 weight percent of at least one interpolymer made from monomer components comprising (1) from 0.5 to 65 mole percent of (a) at least one aromatic vinylidene monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one aromatic vinylidene monomer and at least one hindered aliphatic or cycloaliphatic vinylidene monomer, and (2) from 99.5 to 35 mole percent of at least one aliphatic .alpha.-olefin having from 2 to 20 carbon atoms; and (B) from 99 to 1 weight percent of at least one polymer made from monomer components comprising at least one .alpha.-olefin having from 2 to 20 carbon atoms. These articles possess improved properties when compared to the properties of articles derived from the individual polymers comprising the blend. These articles are useful in the preparation of injection molded parts, bitumen and asphalt modification, hot melt and pressure sensitive adhesive systems.