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. 21, 2019
Filed:
Aug. 26, 2016
Applicant:
Kuraray Europe Gmbh, Hattersheim, DE;
Inventor:
Uwe Keller, Hattersheim, DE;
Assignee:
KURARAY EUROPE GMBH, Hattersheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 13/00 (2006.01); B29C 47/00 (2006.01); B32B 17/10 (2006.01); C08J 5/18 (2006.01); C08K 5/00 (2006.01); C08K 5/09 (2006.01); C08K 5/098 (2006.01); C08K 5/103 (2006.01); B29K 31/00 (2006.01);
U.S. Cl.
CPC ...
B29B 13/00 (2013.01); B29C 47/0021 (2013.01); B32B 17/10761 (2013.01); C08J 5/18 (2013.01); C08K 5/00 (2013.01); C08K 5/09 (2013.01); C08K 5/098 (2013.01); C08K 5/103 (2013.01); B29C 47/0004 (2013.01); B29K 2031/00 (2013.01); C08J 2329/14 (2013.01); C08K 5/0016 (2013.01);
Abstract
The invention is directed to a process for extrusion of mixtures comprising at least one polyvinyl acetal, at least one plasticizer and least one earth alkaline salt of a carboxylic acid, wherein 0.001%-1 wt. % (based on the combined weight of PVB resin and plasticizer) of at least one organic acid having 4 to 30 carbon atoms is added to the mixture.