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:
Jul. 29, 1997
Filed:
Aug. 20, 1996
Applicant:
Inventors:
Peter D Schmitt, Glen Dale, WV (US);
Douglas A Wicks, Mt. Lebanon, PA (US);
Lyuba K Gindin, Pittsburgh, PA (US);
Philip E Yeske, Pittsburgh, PA (US);
Arthur W Mason, Sisterville, WV (US);
Kenneth P Yonek, McMurray, PA (US);
Assignee:
Bayer Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524591 ; 524539 ; 524589 ; 524590 ; 524839 ; 524840 ; 524874 ;
Abstract
The present invention relates to aqueous dispersions of polyureas containing hydantoin groups (calculated as C.sub.3 N.sub.2 O.sub.2, MW 96) in an amount of 1 to 40% by weight, based on resin solids. The present invention also relates to the use of these dispersions for preparing coatings having excellent hydrolytic and thermal stability.