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. 30, 1999
Filed:
Jul. 15, 1997
Applicant:
Inventors:
Kyung W Suh, Midland, MI (US);
Creston D Shmidt, Midland, MI (US);
Daniel D Imeokparia, Midland, MI (US);
Alan E Platt, Midland, MI (US);
Thomas E Wessel, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
521138 ; 521 59 ; 521 79 ; 521 81 ;
Abstract
Foamed polymeric materials exhibiting improved heat resistant properties and improved mechanical properties, as compared with known foamed styrene polymer materials, are obtained by expanding a polymer blend including a syndiotactic styrene polymer and an amount of an amorphous polymeric material which will impart enhanced heat resistant properties to the blend.