Polymer compositions

US6365658B1 · kind B1 · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Jerker B.L. Kjellqvist · Wädenswil, CH
• Brian W. Walther · Clute, US
• Wenbin Liang · Beijing, CN
• Roland Karlsson · Karlstad, SE

Key dates

• Filing date: Aug 12, 1999
• Grant date: Apr 2, 2002
• Expiry date: Aug 12, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2314/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polymer composition comprising, based on the total weight of A), B), C) and D),A) from about 10 to 89.99 percent of a substantially random interpolymer comprising in polymerized form i) from about 35 to about 89.5 mole percent of one or more &agr;-olefin monomers and ii) from about 65 to about 10.5 mole percent of one or more vinyl or vinylidene aromatic monomers and/or one or more sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene monomers, and optionally iii) other polymerizable ethylenically unsaturated monomer(s);B) from about 10 to about 75 percent of one or more polyolefins selected from the group consisting of I) propylene polymers and II) high density polyethylenes; andC) from 0.01 to about 10 percent of a non-ionic lubricant; andD) from 0 to about 60 percent of a substantially random interpolymer comprising in polymerized form i) from about 50 to about 99.5 mole percent of one or more &agr;-olefin monomers and ii) from about 50 to about 0.5 mole percent of one or more vinyl or vinylidene aromatic monomers and/or one or more sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene monomers, and optionally iii) other polymerizable ethylenically …