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:
May. 11, 2004
Filed:
Aug. 27, 2002
Applicant:
Inventors:
Beat Niederoest, Marlton, NJ (US);
Chiu Y. Chan, Wilmington, DE (US);
Robert Mohr, Williamstown, NJ (US);
Assignee:
Foamex L.P., Linwood, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/800 ;
U.S. Cl.
CPC ...
C08G 1/800 ;
Abstract
Polyurethane foams formed at above atmospheric pressure conditions using methylene diisocyanate or a specific mixture of polyisocyanate and with a major portion of methylene diisocyanate (MDI) with a specific mixture of polyether and graft polyols produces high density viscoelastic foams with improved hand touch (surface smoothness) that better retain viscoelasticity over time. The foam-forming ingredients are mixed together and foamed at controlled pressures in the range 1.05 to 1.5 bar (absolute), preferably 1.1 to 1.3 bar (absolute).