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:
Mar. 29, 1994
Filed:
Jun. 02, 1992
Francis R Sullivan, Cleveland Heights, OH (US);
Elaine A Mertzel, Rocky River, OH (US);
Craig L Shoemaker, Avon, OH (US);
The Geon Company, Independence, OH (US);
Abstract
The present invention relates to electrostatic dissipative impact modified polymeric compositions comprising an effective amount of a chain extended block copolymer, polyvinyl halide and no more than 10 weight parts of a polymeric impact modifier per 100 weight parts of polyvinyl chloride. The chain extended block copolymer is formed from reacting a di-functional polyether with a chain extender which is a condensate selected from the group consisting of polyundecanolactam, polydodecanolactam, poly(11-aminoundecanoic acid) and (12-aminododecanoic acid). The compounds further comprise a heat distortion modifier which does not interfere with ESD properties and is selected from the group consisting of styrene-acrylonitrile copolymer, alpha methyl styrene-styrene-acrylonitrile terpolymer, a polymer of alpha methyl styrene-styrene-N-cyclohexyl maleimide, N-phenylmaleimide, imidized polymethyl methacrylate, post-chlorinated polyvinyl chloride, styrene-maleic anhydride polymer, imidized styrene-maleic anhydride polymer, acrylic-imide copolymer, acrylonitrile-methylmethacrylate copolymer, acrylonitrile-acrylate-polybutadiene graft copolymer, alpha methyl styrene-methylmethacrylate-acrylonitrile terpolymer, alpha-methyl styrene-styrene-methylmethacrylate terpolymer, alpha methyl styrene-methylmethacrylate copolymer, alpha methyl styrene-acrylonitrile copolymer, alpha methyl styrene-methylmethacrylate graft copolymer on polyacrylate rubber, polycarbonate, and brominated polycarbonate.