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. 22, 1981
Filed:
Jan. 02, 1980
Applicant:
Inventor:
Frank L Saunders, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; B32B / ;
U.S. Cl.
CPC ...
521136 ; 428313 ; 428460 ; 428463 ; 521149 ; 525162 ;
Abstract
High density thermoset foams of acrylic polymers are prepared by dry mixing a hydroxy-functional acrylic polymer, e.g., a copolymer of styrene, ethyl acrylate, hydroxy alkyl acrylate and acrylic acid, with a crosslinking agent, e.g., a melamineformaldehyde condensate, and then subjecting the resulting mixture to conditions sufficient to cause the mixture to foam and to crosslink to a thermoset material.