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:
Jan. 23, 2001
Filed:
Aug. 02, 1999
Applicant:
Inventors:
Richard Kopp, Köln, DE;
James-Michael Barnes, Hochscheid, DE;
Hans-Dieter Ruprecht, Köln, DE;
Hans-Georg Wussow, D{umlaut over (u)}sseldorf, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/00 ; C08K 5/21 ; C08L 7/500 ; C08G 1/881 ; C07D / ;
U.S. Cl.
CPC ...
C08J 3/00 ; C08K 5/21 ; C08L 7/500 ; C08G 1/881 ; C07D / ;
Abstract
Non-crystallizing N,N′-disubstituted N-(2-hydroxyalkyl)-ureas are used as hydrolysis protection agents in plastics containing ester groups. These disubstituted hydroxy-alkylureas impart excellent protection from hydrolysis to plastics containing ester groups and can be added directly to the plastics to be stabilized without the addition of special solvents.