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, 2023
Filed:
May. 25, 2020
Applicant:
Covestro Intellectual Property Gmbh & Co. KG, Leverkusen, DE;
Inventors:
Assignee:
Covestro Intellectual Property GmbH & Co. KG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/12 (2006.01); C08G 18/71 (2006.01); C08G 18/22 (2006.01); C08G 18/28 (2006.01); C08G 18/48 (2006.01); C08G 18/75 (2006.01);
U.S. Cl.
CPC ...
C08G 18/718 (2013.01); C08G 18/12 (2013.01); C08G 18/222 (2013.01); C08G 18/289 (2013.01); C08G 18/4845 (2013.01); C08G 18/755 (2013.01);
Abstract
The present invention relates to a process for preparing a mixed silane-terminated polymer by reacting a polyol component A) with a diisocyanate component B) comprising 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane (isophorone diisocyanate), at least one isocyanatosilane C) and an aminosilane E), in which the urethanization reaction is carried out in the presence of at least one catalyst D) which is free of organically bonded tin. The invention further relates to the use of the polymers thus obtained.