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. 11, 1997
Filed:
Apr. 19, 1996
Applicant:
Inventor:
Rocco P Triolo, Broomall, PA (US);
Assignee:
Foamex L.P., Linwood, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
521130 ; 521137 ; 521174 ;
Abstract
A breathable or air-permeable, open cell, flexible urethane polymer suitable for use in cushions is formed from a foam-forming composition containing from about 0.5 to 2.0 parts by weight of butyl oleate, based upon 100 parts by weight polyol, under controlled pressure conditions maintained at or, preferably, below atmospheric pressure. The pressure during foaming is maintained in the range of about 0.5 to 1.0 bar, preferably 0.5 to 0.9 bar. Resultant air permeability is unexpectedly significantly increased over urethane polymers of equivalent composition. Other polymer properties are enhanced.