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. 03, 1998
Filed:
Sep. 23, 1996
Applicant:
Inventors:
Joachim Werner, Bethel Park, PA (US);
Scott A Kane, Wellsburg, WV (US);
Herman P Doerge, Pittsburgh, PA (US);
Eric F Boonstra, Oakdale, PA (US);
Charles E Mortimer, Tarentum, PA (US);
Assignee:
Bayer Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521114 ; 252 67 ; 521131 ; 521910 ; 510408 ; 510411 ;
Abstract
Azeotropic compositions made up of from about 68.1 to about 69.1% by weight of dimethoxymethane, from about 29.7 to about 30.7% by weight of cyclopentane and from about 0.7 to about 1.7% by weight in which the sum of the weight percents of the components is 100% by weight. These azeotrope-like compositions are useful as blowing agents in the production of polyurethane foams.