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. 25, 2004
Filed:
Aug. 14, 2002
Applicant:
Inventors:
Beat Niederoest, Marlton, NJ (US);
Andrew M. Thompson, West Chester, PA (US);
Joseph W. Lovette, Newark, DE (US);
Chiu Y. Chan, Wilmington, DE (US);
Assignee:
Foamex L.P., Linwood, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/828 ;
U.S. Cl.
CPC ...
C08G 1/828 ;
Abstract
Polyurethane foams formed under vacuum (below atmospheric pressure) conditions using toluene diisocyanate or a specific mixture of polyisocyanates with a specific mixture of polyether and graft polyols produces a foam with lower density and better flame retardancy than latex foam, but with equally high resiliency. The foam-forming ingredients are mixed together and foamed under controlled pressures in the range 0.6 to 0.95 bar (absolute), preferably 0.8 to 0.95 bar (absolute). The resulting foam has a ball rebound above about 65 percent.