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:
Dec. 30, 1997
Filed:
Nov. 22, 1994
Applicant:
Inventors:
Youlu Duan, Minneapolis, MN (US);
Michael J Dochniak, St. Paul, MN (US);
Sonja Stammler, Marine On The St. Croix, MN (US);
Assignee:
H.B. Fuller Licensing & Financing, Inc., Arden Hills, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08G / ; C09D / ; C09J / ;
U.S. Cl.
CPC ...
524840 ; 1563311 ; 1563314 ; 1563317 ; 4284231 ; 4284234 ; 4284237 ; 4284242 ; 4284246 ; 4284248 ; 4284251 ; 4284258 ; 524500 ; 524507 ; 524591 ; 525123 ; 525127 ; 525440 ; 525454 ; 525455 ; 525457 ; 525528 ; 528 71 ; 528906 ;
Abstract
Sulfonated polyester polyols and mixtures of sulfonated polyester polyols and hydroxy carboxylic acids are used to prepare improved aqueous anionic poly(urethane/urea) dispersions with a high crystallization rate, low heat activation temperature, high green strength, stability at low pH, which show good compatibility with other water based polymers and with crosslinkers. The aqueous anionic poly(urethane/urea) dispersions have high heat resistance after curing or blending with a crosslinker.