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:
Aug. 07, 1984
Filed:
Jun. 07, 1982
Applicant:
Inventor:
Phillip A Mango, South Somerville, NJ (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526200 ; 526345 ; 5263442 ; 526909 ;
Abstract
Vinyl chloride-propylene copolymer resin having improved porosity as shown by an increased irreversible plasticizer take-up is produced by the suspension polymerization of vinyl chloride and propylene in the presence of a binary suspension system of a hydroxypropylmethyl cellulose having 19-30% methoxyl and 4-12% hydroxypropoxyl substitution and a 30-50 mole % hydrolyzed polyvinyl alcohol.