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. 05, 1986
Filed:
Apr. 30, 1985
Wen-Hsuan Chang, Gibsonia, PA (US);
Edward L Dufford, Sarver, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
Disclosed is an ungelled partial hydrolysis product of an organosilicon-containing material, a method for preparing the partial hydrolysis product, and a composition such as a coating composition containing the partial hydrolysis product. The organosilicon-containing material for preparation of the ungelled partial hydrolysis product has an average functionality based on easily hydrolyzable Y groups attached to silicon atoms of greater than or equal to 2.4. The organosilicon-containing material for preparation of the ungelled partial hydrolysis product contains greater than or equal to 10 mole percent of at least one organosilane compound corresponding to the formula, R--Si--Y.sub.3. In the aforesaid formula, R represents hydrogen or a C.sub.1 -C.sub.10 group joined to Si through an Si--C linkage. Each Y in the aforesaid formula represents an easily hydrolyzable group. The partial hydrolysis product is prepared by hydrolyzing a portion of the easily hydrolyzable groups of the organosilane compound with a controlled amount of water. The amount of water employed in the controlled hydrolysis is determined according to the following formula,