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:
Feb. 13, 2001
Filed:
Sep. 16, 1998
Applicant:
Inventors:
Larry M. Miller, Suffield, OH (US);
Raymond M. Breindel, Hartville, OH (US);
Mitchell Z. Weekley, Akron, OH (US);
Assignee:
Owens Corning Fiberglas Technology, Inc., Summit, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/14 ;
U.S. Cl.
CPC ...
C08J 9/14 ;
Abstract
In one embodiment, the present invention relates to a process for preparing a foam product involving the steps of (A) forming a foamable mixture of (1) a polymer comprising about 10% to about 90% monomers of at least one of meta-substituted styrene and para-substituted styrene and 0% to about 90% monomers of styrene, and (2) a blowing agent containing a major amount of carbon dioxide under a pressure sufficient to prevent prefoaming of the mixture and (B) foaming the mixture into a region of reduced pressure to form the foam product.