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:
Jul. 14, 1992
Filed:
Nov. 07, 1991
Applicant:
Inventors:
Seetha Eswarakrishnan, Allison Park, PA (US);
Carol L Knox, Monroeville, PA (US);
Suresh B Damle, Pittsburgh, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
523179 ; 521 85 ; 521 93 ; 521107 ; 521108 ; 521126 ; 521143 ; 521146 ; 521149 ; 521182 ; 521183 ;
Abstract
The water resistance of intumescent compositions is improved if the composition comprises at least one organotin derivative of a polyol. Organotin derivatives of polyols can be produced by reacting polyol with dialkyltin oxide or with dialkyltin dialkoxide.