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:
Dec. 09, 1986
Filed:
Feb. 03, 1986
Applicant:
Inventors:
Tohru Yokota, Ibaraki, JP;
Kaname Inoue, Kanagawa, JP;
Ryozo Tanizawa, Tokyo, JP;
Hideyuki Asou, Ibaraki, JP;
Hajime Kitamura, Chiba, JP;
Assignee:
Shin Etsu Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
524504 ; 524496 ; 524505 ; 524516 ; 525 73 ; 525 91 ; 525205 ;
Abstract
The invention provides a formulation of a vinyl chloride resin-based composition suitable for preparing floppy disc jackets having high heat resistance with a Clash-Berg temperature of 75.degree. C. or higher comprising, as the essential components, (A) a copolymer of viny chloride with a N-substituted maleimide as the comonomer, optionally in combination with a homopolymeric polyvinyl chloride resin, (B) an impact-strength improving agent which is preferably a vulcanizable synthetic rubber and (C) carbon black.