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:
Oct. 17, 1995
Filed:
Apr. 06, 1994
Applicant:
Inventors:
Gerhard Bleys, Heverlee, BE;
Viviane G Neyens, Scherpenheuvel, BE;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521125 ; 521160 ; 521174 ; 521176 ; 521914 ; 528 67 ; 528 76 ; 528 77 ;
Abstract
A method for the preparation of flexible polyurethane foams by reacting a polyisocyanate containing at least 85% by weight of 4,4'-diphenylmethane diisocyanate or a liquid variant thereof with a polyol composition comprising at least one poly(oxyethylene-oxyalkylene) polyol, the composition having an average nominal hydroxyl functionality of from 2.5 to 6, a number average hydroxyl equivalent weight of from 1000 to 3000 and an average oxyethylene content of from 25 to less than 50% by weight and with water.