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:
Apr. 28, 1992
Filed:
May. 10, 1991
Applicant:
Inventor:
Scott C Snider, Seminole, FL (US);
Assignee:
Jim Walter Research Corp., St. Petersburg, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521 99 ; 521131 ; 521172 ; 521173 ; 4283084 ; 4284231 ;
Abstract
Rigid cellular polymers are made by reacting an organic polyisocyanate with a polyol component comprising a polyester polyol having a free glycol content of less than about 7 percent by weight of the polyester polyol in the presence of a blowing agent. The use of the polyester polyol enhances the thermal insulating properties of the foams.