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:
Aug. 10, 1999
Filed:
Feb. 19, 1997
Applicant:
Inventors:
Michael J Elwell, IJzendijke, NL;
Hanno R van der Wal, Hoek, NL;
Camiel F Bartelink, Terneuzen, NL;
Henri J Grunbauer, Oostburg, NL;
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C09D / ; C08L / ;
U.S. Cl.
CPC ...
528 44 ; 524591 ; 524839 ; 524840 ; 528 59 ; 528 66 ; 528 71 ; 528 76 ; 528 77 ; 528 80 ; 528 84 ; 528 85 ; 560 25 ; 560 26 ; 560115 ; 560157 ; 560158 ; 562433 ; 562439 ; 562441 ; 562498 ; 562507 ; 562560 ; 562561 ; 562565 ;
Abstract
Disclosed is an acid-funtionalized polyurethane adduct and a process for the preparation of such adduct. The adduct having a linear or preferably branched structure comprises a plurality of internal urethane linkages and one or more terminal carboxylic acid groups per molecule. Such acid-funtionalized polyurethane adducts find value in the manufacture of crosslinked aqueous rubber latexes such as might be used in paint compositions.