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:
Mar. 13, 2007
Filed:
Dec. 02, 2003
Applicants:
Juan Jesus Burdeniuc, Macungie, PA (US);
Mark Leo Listemann, Kutztown, PA (US);
Inventors:
Juan Jesus Burdeniuc, Macungie, PA (US);
Mark Leo Listemann, Kutztown, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of water as a blowing agent, a cell stabilizer, a gelling catalyst, and a tertiary amino alkyl amide catalyst composition. The catalyst composition is represented by the formula I: wherein R, R, R, R, R, R, A, and n are as defined herein and wherein the tertiary amino alkyl amide catalyst of formula I is acid-blocked.