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:
Oct. 22, 2002
Filed:
Nov. 10, 1999
Applicant:
Inventors:
Toshio Okuhara, Hyogo, JP;
Tadashi Tadokoro, Hyogo, JP;
Hiroaki Shiota, Hyogo, JP;
Takeyuki Suzuki, Hyogo, JP;
Minoru Isshiki, Shiga, JP;
Assignee:
Kaneka Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/57 ;
U.S. Cl.
CPC ...
C08K 5/57 ;
Abstract
A chlorinated vinyl chloride resin composition comprising 100 parts by weight of chlorinated vinyl chloride resin and a hydroxypolycarboxylic acid salt, e.g., sodium tartrate, and/or 0.2 to 1.5 parts by weight of zeolite. The composition exhibits improved thermal stability and is particularly suited to pipe extrusion.