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. 17, 2009
Filed:
May. 23, 2002
Applicants:
Steven L. Schilling, Pittsburgh, PA (US);
Edward E. Ball, Weirton, WV (US);
Inventors:
Steven L. Schilling, Pittsburgh, PA (US);
Edward E. Ball, Weirton, WV (US);
Assignee:
Bayer MaterialScience LLC, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rigid polyurethane foam having lose density without an increased k-factor can be produced by adding small amounts of butyl alcohol to a polyurethane composition containing an isocyanate, at least one polyol, a catalyst and a gaseous blowing agent.