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. 24, 1989
Filed:
Aug. 24, 1987
Applicant:
Inventor:
Usama E Younes, Newtown Square, PA (US);
Assignee:
Arco Chemical Company, Newtown Square, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
2643284 ; 2643286 ; 528 53 ;
Abstract
A method for the preparation of cast or transfer molded rigid polyurethane modified polyisocyanurate polymer composition by conveying from a mixing chamber into a mold cavity of desired configuration to react at temperatures of from about ambient to about 140.degree. C. a reaction mixture of an organic di- or polyisocyanate, a cyclic alkylene carbonate and a polyether polyol, in the presence of a soluble adduct of a tertiary amine and a cyclic alkylene cabonate as a catalyst.