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. 04, 1998
Filed:
May. 16, 1996
Applicant:
Inventors:
Shin-Chuan Yao, Taipei Hsien, TW;
Jongfu Wu, Taipei Hsien, TW;
Kun-Lin Cheng, Taipei Hsien, TW;
Wen-Tung Chen, Taipei Hsien, TW;
Fu-Fong Chang, Taipei Hsien, TW;
Assignee:
China Textile Institute, Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 45 ; 528 71 ; 2521822 ; 25218222 ; 524591 ;
Abstract
An improved method of reaction of water PU resins for improving the blocking reactions of beta-dicarbynal compounds and polisocynantes, and reducing the reaction time for water PU blocking, wherein the construction is: ##STR1## wherein: R.sub.1,R.sub.2,R.sub.3,R.sub.4 =hydrogen or alkyl group n.sub.1 =1.about.100 n.sub.2, n.sub.3, n.sub.4 =1.about.10 The blocking agents of beta-Dicarbonyl compounds are reduced by D.sub.1 and D.sub.2 which are used in the blocking reactions of water PU.