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:
Jul. 12, 1983
Filed:
Nov. 10, 1981
Applicant:
Inventors:
Paul A Holmes, Middlesbrough, GB;
Frank M Willmouth, Royston, GB;
Alan B Newton, Welwyn Garden City, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
525 64 ; 525186 ; 525190 ; 525412 ; 525415 ; 525450 ;
Abstract
Polymer blends containing (i) 0.2-95% by weight of a high molecular weight .beta.-hydroxybutyric acid homo- or copolymer and (ii) a polymer containing at least 25% by weight of chlorine or nitrile groups, such as chlorinated polyethylene, polyvinyl chloride, or a high acrylonitrile resin. In small quantities the .beta.-hydroxybutyric acid polymer acts as a processing aid for the chlorine or nitrile containing polymer. In larger quantities the properties of the .beta.-hydroxybutyric acid polymer or the chlorine or nitrile containing polymer are improved.