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:
May. 22, 1979
Filed:
Jan. 18, 1977
Applicant:
Inventors:
Hans-Jurgen Pettelkau, Berlin, DE;
Rudolf Hombach, Cologne, DE;
Heinz Esser, Burscheid, DE;
Wilfried Keller, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ;
Abstract
Polychloroprene latex which is stable to freezing and thawing can be obtained by adding a betaine of a formula given below before, during or after polymerization.