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. 05, 2002
Filed:
Nov. 29, 2001
Applicant:
Inventors:
John D. Duffy, La Wantzenau, FR;
Warren H. Griffin, Saginaw, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/14 ;
U.S. Cl.
CPC ...
C08J 9/14 ;
Abstract
The present invention relates to blowing agent compositions that contain at least one hydrofluorocarbon having a boiling point of 30° C. or higher and lower than about 120° C., at least one hydrofluorocarbon having a boiling point lower than 30° C., and at least one component selected from low-boiling alcohols and low-boiling carbonyl compounds. The present invention also relates to processes for preparing polymeric foam using such blowing agent compositions, as well as polymeric foams and foamable polymer compositions containing such blowing agent compositions.