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:
Oct. 29, 2002
Filed:
Apr. 27, 2001
Applicant:
Inventors:
Jin-chih Chiang, Lansdale, PA (US);
Shang-Jaw Chiou, Lower Gwynedd, PA (US);
Frederick James Schindler, Ft. Washington, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C14C 9/00 ; C14C 1/100 ;
U.S. Cl.
CPC ...
C14C 9/00 ; C14C 1/100 ;
Abstract
An aqueous leather coating composition containing a multi-stage emulsion polymer having a stage of Tg<10° C. which contains a copolymerized carboxylic acid and which has been contacted with a divalent metal oxide, hydroxide, or carbonate and a polymer stage of Tg>20° C. which has been prepared in the presence of 1% to 15% by weight based on the weight of that stage of chain transfer agent is provided. Also, provided is a method for coating leather with the composition of this invention.