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. 05, 2009
Filed:
Dec. 12, 2003
Applicants:
Bernd Papenfuhs, Obertshausen, DE;
Martin Steuer, Liederbach, DE;
Matthias Gutweiler, Huenfelden, DE;
Inventors:
Bernd Papenfuhs, Obertshausen, DE;
Martin Steuer, Liederbach, DE;
Matthias Gutweiler, Huenfelden, DE;
Assignee:
Kuraray Europe GmbH, Frankfurt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for producing crosslinked polyvinyl acetals, according to which a vinyl alcohol copolymer is reacted with at least one polyaldehyde and is partly esterified.