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:
Feb. 05, 2008
Filed:
Jul. 29, 2004
Robert B. Stearns, Luna Pier, MI (US);
John P. Erickson, Southgate, MI (US);
Steven Hicks, Brownstown, MI (US);
John Cook, Plymouth, MI (US);
Raghuram Gummaraju, Novi, MI (US);
Robert B. Stearns, Luna Pier, MI (US);
John P. Erickson, Southgate, MI (US);
Steven Hicks, Brownstown, MI (US);
John Cook, Plymouth, MI (US);
Raghuram Gummaraju, Novi, MI (US);
BASF Corporation, Florham Park, NJ (US);
Abstract
The subject invention provides a composition and a process for forming a flexible polyurethane foam sealing device having improved compression set properties at increased temperatures. The sealing device is formed without the use of chemical blowing agents. The composition includes an isocyanate component for reaction with a resin component comprising an isocyanate-reactive component having a functionality of least four and a hydroxyl number of less than 40, a graft dispersion, and a physical blowing agent. The most preferred physical blowing agent is HFC-245 fa or 1,1,1,3,3-pentafluoropropane.