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. 15, 1989
Filed:
Aug. 25, 1987
Winfried Emmerling, Erkrath, DE;
Tore Podola, Monheim, DE;
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Abstract
Alkoxysilane-terminated, moisture-hardening polyurethanes obtained by reaction of OH-terminated diols and/or triols with diisocyanates to form NCO-terminated polyurethanes having an NCO functionality of at least 2, and reaction of some of the NCO groups with aliphatic alcohols to form a polyurethane having an NCO functionality of at least 1 and less than 2, or by reaction of the OH-terminated linear diols or triols with a mixture of mono- and diisocyanates to form NCO-terminated polyurethanes having an NCO functionality of at least 1 and less than 2, followed by a reaction of substantially all the free NCO functions of the polyurethanes obtained with aminoalkyl, mercaptoalkyl or epoxyalkyl alkoxysilanes. The polyurethanes thus obtained are particularly suitable as a basis for moisture-hardening one-component sealing compounds and adhesives.