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:
Feb. 09, 1982
Filed:
Feb. 18, 1981
Akio Kobayashi, Iwaki, JP;
Takayuki Katto, Iwaki, JP;
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A graft copolymer is obtained by graft-polymerizing an ethylenically unsaturated monomer onto a rubber trunk polymer which is a copolymer of a polyalkylene oxide monomer comprising 4 to 500 alkylene oxide groups together with an ethylenic unsaturation, and a conjugated diene and/or an alkyl acrylate. By adding an anionic surfactant to a base resin which comprises this graft copolymer alone or a mixture of this graft copolymer and another thermoplastic resin, an antistatic resin composition can be obtained. The resin composition thus obtained possesses excellent and permanent antistatic property that is not lowered by washing or wiping as is the case with conventional antistatic resins comprising an antistatic agent.