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. 24, 2000
Filed:
Mar. 31, 1999
Applicant:
Inventors:
Ueli Pfenninger, Au, CH;
Pierre-Andre Butikofer, Hittnau, CH;
Assignee:
Sika AG, vorm. Kaspar Winkler & Co., Au, CH;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 73 ; 528 62 ; 528 64 ; 544335 ; 2521822 ; 5483341 ; 564 47 ; 564 50 ;
Abstract
A one-component polyurethane composition is described that comprises a latent curing agent bonded to the prepolymer, from which curing agent aldehyde is liberated upon curing. Said aldehyde comprises two phenyl groups. By the specific design of the polyurethane composition, the application characteristics as well as the aging resistance of the cured polyurethane are improved.