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:
Mar. 24, 1987
Filed:
Nov. 12, 1985
Applicant:
Inventor:
Michael E Londrigan, Safety Harbor, FL (US);
Assignee:
Jim Walter Resources, Inc., Birmingham, AL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521172 ; 521173 ; 528299 ; 528302 ; 528303 ; 528304 ; 528305 ; 5283081 ; 5283086 ; 252182 ; 560 89 ; 560 90 ; 560 91 ; 560 92 ; 427373 ; 4273855 ; 4283193 ; 4283197 ; 4284231 ;
Abstract
A polyester polyol mixture is prepared by reacting a polycarboxylic acid component-containing polyol with a terephthalic acid residue, wherein the polycarboxylic acid component has ring units with two ##STR1## groups on adjacent or alternate ring positions, the ring unit content of the polycarboxylic acid component being sufficient for viscosity reduction of the polyester polyol mixture. The polyester polyol mixture is useful in the preparation of cellular foam materials, particularly polyisocyanurate and polyurethane foams, and laminates thereof.