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. 23, 1993
Filed:
Apr. 06, 1992
Applicant:
Inventors:
Timothy W Rhoads, Granville, OH (US);
Takao Kadota, Utsunomiya, JP;
Kyung W Suh, Grenville, OH (US);
William G Stobby, Johnstown, OH (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 88 ; 521 57 ; 521 79 ; 521 81 ; 521 95 ; 521 97 ; 521139 ; 521146 ;
Abstract
A foamable composition comprising an alkenyl aromatic polymer, blowing agent and a transient foam control agent that is effective to reduce polymer melt viscosity in the melt phase but nonmiscible and nondetrimental to the solid polymer.