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:
Jan. 17, 2012
Filed:
Aug. 31, 2006
Applicants:
V. Michael Mautino, Finleyville, PA (US);
Steven L. Schilling, Pittsburgh, PA (US);
Edward E. Ball, Weirton, WV (US);
Inventors:
V. Michael Mautino, Finleyville, PA (US);
Steven L. Schilling, Pittsburgh, PA (US);
Edward E. Ball, Weirton, WV (US);
Assignee:
Bayer MaterialScience LLC, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 18/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Rigid closed-cell polyurethane foams with low k-factors are produced by reacting an organic polyisocyanate with an amine-based polyether polyol and a polyester polyol in the presence of a catalyst and a hydrofluorocarbon blowing agent, preferably, HFC-245fa. It is preferred that no water be added to the reaction mixture.