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. 13, 1976
Filed:
Mar. 29, 1974
Applicant:
Inventors:
Dieter Kurz, Burghausen, DT;
Alex Sabel, Burghausen, DT;
Assignee:
Wacker Chemie GmbH, Munich, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526320 ; 260 / ; 260 / ; 526345 ;
Abstract
Copolymers of vinyl chloride and 2-hydroxypropyl-alkyl maleate and/or fumarate consisting of a copolymer with from 65% to 95% by weight of vinyl chloride monomer units and from 5% to 35% by weight of 2-hydroxypropyl-alkyl maleate and/or fumarate monomer units, where alkyl has from 8 to 18 carbon atoms and is preferably branched, optionally with up to 15% of a dialkyl maleate and/or fumarate monomer units, where each alkyl has from 8 to 18 carbon atoms, said copolymer having a K-value of from 20 to 50 measured in cyclohexanone, as well as the method of producing the same by continuous addition of the monomer mix to an aqueous emulsion.