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:
Nov. 29, 1994
Filed:
May. 27, 1993
Applicant:
Inventors:
Rik De Vos, Rotselaar, BE;
Jan W Leenslag, Tremelo, BE;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
2521822 ; 25218224 ; 25218225 ; 25218226 ; 25218227 ; 521131 ; 521132 ; 521 51 ;
Abstract
A method for the preparation of a flexible foam, an integral skin foam or a microcellular elastomer by reacting an organic polyisocyanate and an isocyanate-reactive composition comprising at least one isocyanate-reactive compound of molecular weight of 1000 to 10000 and a functionality of 2 to 4 in the presence of a blowing agent, characterized in that the reaction is conducted in the presence of an inert, insoluble, organic liquid which has a boiling point of at least 60.degree. C. at 1 bar. CFC-free foams and elastomers of good quality are obtainable.