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:
Sep. 14, 1993
Filed:
Jun. 09, 1992
Applicant:
Inventors:
Tomas I Binder, Buehl-Moos, DE;
Chau Van Vo, Souffelweyersheim, FR;
Deborah L Kocsis, Newark, OH (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 79 ; 521 82 ; 521 88 ; 521 97 ; 521146 ; 521910 ;
Abstract
Low density styrene polymer foams having highly desirable physical properties are prepared employing as a blowing agent a mixture of carbon dioxide, lower alcohol and water. The cell size can be effectively controlled by controlling the amount of water in the blowing agent mixture, i.e., small cell or large cell foams can be prepared. A process for preparing such foams is also disclosed.