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:
Dec. 18, 2012
Filed:
Mar. 27, 2010
Applicants:
Hartmut Nefzger, Pulheim, DE;
Erika Bauer, Jüchen, DE;
Uwe Kuenzel, Leverkusen, DE;
Jürgen Schloβmacher, Bergheim, DE;
Lutz Brassat, Leverkusen, DE;
Inventors:
Hartmut Nefzger, Pulheim, DE;
Erika Bauer, Jüchen, DE;
Uwe Kuenzel, Leverkusen, DE;
Jürgen Schloβmacher, Bergheim, DE;
Lutz Brassat, Leverkusen, DE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 22/00 (2006.01); B29D 23/00 (2006.01); B32B 1/08 (2006.01); B65D 39/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Polyester polyols are produced by reacting terephthalic acid with a glycol corresponding to the formula H—(OCHCH)—OH and an aliphatic dicarboxylic acid. These polyester polyols are particularly useful for the production of polyurethane) (PUR) and polyurethane/polyisocyanurate (PUR/PIR) foams for use in insulation applications.