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:
Jan. 19, 1988
Filed:
Oct. 20, 1986
Debra L Singer, Pittsburgh, PA (US);
Rostyslaw Dowbenko, Gibsonia, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
Disclosed is a free-radical addition product of a mercapto-functional polyhydric alcohol and a vinyl-type silane having at least one hydrolyzable group directly attached to a silicon atom, the addition product prepared by reacting the mercapto-functional polyhydric alcohol and the vinyl-type silane in the presence of a free radical initiator. The addition product contains at least two hydroxyl groups bonded to carbon atoms and at least one silicon atom bonded to at least one hydrolyzable group. The resulting polyhydroxyl-functional addition products can be chain extended using organic polyisocyanates to produce isocyanate-terminated compounds which also contain silicon atoms directly bonded to hydrolyzable groups along the molecule chains.