The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1987
Filed:
Jan. 21, 1986
Jerry L Hahnfeld, Midland, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
A polymer resin comprising a blend of an olefin polymer, such as polyethylene, a monovinylidene aromatic polymer, such as polystyrene, and a grafted, block copolymer compatibilizing agent. The compatibilizing agent comprises an .alpha.-olefin copolymer substrate grafted with amounts of monovinylidene aromatic polymer. Preferably, the .alpha.-olefin copolymer substrate is a terpolymer of ethylene, propylene and a non-conjugated diolefin. This thermoplastic material has very desirable property combinations, combining the desirable properties from the olefinic and monovinylidene aromatic polymers. The blend can be shaped into final products by thermoforming techniques yet possesses many desirable polyolefin properties such as environmental stress crack resistance.