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. 20, 1979
Filed:
Sep. 29, 1977
Applicant:
Inventors:
John H Beale, Dedham, MA (US);
Ernest K Moss, St. Petersburg, FL (US);
Assignee:
The Celotex Corporation, Tampa, FL (US);
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521129 ; 252356 ; 428310 ; 521 94 ; 521181 ; 528155 ;
Abstract
A closed cell phenolic-resin foam material comprising phenolic-resin foam forming reactants, a blowing agent, and a surfactant which is the capped reaction product of an alkoxylated amine and a copolymerizable mixture of dialkyl maleate with N-vinyl-2-pyrrolidone or N-vinyl caprolactam.