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. 05, 1988
Filed:
Dec. 23, 1986
Duane F Merrill, Ballston Spa, NY (US);
General Electric Company, Waterford, NY (US);
Abstract
There is provided a method for rendering masonry water repellent which comprises (a) contacting the masonry with a solution comprising an organopolysiloxane resin selected from the group consisting of resins containing R.sub.3 SiO.sub.0/5 units and SiO.sub.2 units and resins containing R.sub.3 SiO.sub.0.5 units, R.sub.2 SiO.sub.2 units and SiO.sub.2 units, the ratio of R.sub.3 SiO.sub.0.5 units to SiO.sub.2 units ranging from about 0.2 to about 0.9:1 and resins containing R.sub.3 SiO.sub.0.5 units, R.sub.2 SiO units, and the ratio of SiO.sub.2 units to SiO.sub.2 units being up to about 0.1:1, where each R is an independently selected substituted or unsubstituted alkyl radical, aryl radical, alkaryl radical, aralkyl radical, cycloalkyl radical or alkenyl radical, and (b) evaporating the solvent. Preferably, the resin solution further comprises an alkylalkoxypolysiloxane resin.