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:
Feb. 27, 2007
Filed:
Aug. 23, 2004
Applicants:
Werner Andrejewski, Dorsten, DE;
Andreas Wenning, Nottuln, DE;
Patrick Glöckner, Ratingen, DE;
Inventors:
Assignee:
Degussa AG, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G 2/18 (2006.01); C08G 6/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing ketone-formaldehyde resins, especially acetophenone- and cyclohexanone-formaldehyde resins, having a low water content and high thermal stability and yellowing resistance, and a process for their production and their use.