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. 23, 2025
Filed:
Dec. 16, 2020
Applicant:
Sika Technology Ag, Baar, CH;
Inventor:
Marc Balmer, Unterengstringen, CH;
Assignee:
SIKA TECHNOLOGY AG, Baar, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/12 (2006.01); C08G 18/30 (2006.01); C08G 18/48 (2006.01); C08G 18/62 (2006.01); C08K 3/04 (2006.01); C09J 175/04 (2006.01);
U.S. Cl.
CPC ...
C08G 18/12 (2013.01); C08G 18/307 (2013.01); C08G 18/4825 (2013.01); C08G 18/4841 (2013.01); C08G 18/4854 (2013.01); C08G 18/6225 (2013.01); C08K 3/04 (2013.01); C09J 175/04 (2013.01); C08G 2170/00 (2013.01); C08G 2190/00 (2013.01); C09J 2400/143 (2013.01); C09J 2475/00 (2013.01);
Abstract
A poly(meth)acrylate urethane polymer, obtained from the reaction of at least one monomeric diisocyanate and a poly(meth)acrylate polyol having an OH number in the range from 50 to 200 mg KOH/g in an NCO/OH ratio of at least 3/1, followed by removal of a majority of the monomeric diisocyanate by means of a suitable separation method, wherein it has an NCO content in the range from 2.5% to 8% by weight, based on the poly(meth)acrylate urethane polymer, and a residual content of unconverted monomeric diisocyanates of not more than 0.5% by weight, and to the use thereof as additive and to moisture-curing polyurethane compositions.