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:
Aug. 19, 1986
Filed:
Sep. 30, 1985
Applicant:
Inventors:
Chester J Kmiec, Amherst, NY (US);
Michael F Novits, Buffalo, NY (US);
Edward P Hibbard, Cheektowaga, NY (US);
Assignee:
Pennwalt Corporation, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 89 ; 521 91 ; 521 92 ; 521 95 ; 521 96 ; 521143 ; 521144 ; 521149 ; 521150 ; 521154 ;
Abstract
Crosslinked elastomeric and/or thermoplastic closed-cell foams having low densities are prepared from an admixture which comprises a crosslinkable thermoplastic and/or elastomeric polymer, a free radical initiator which is activated at temperatures from about 50.degree. C. to about 350.degree. C., and a t-alkylhydrazinium salt or a carbonylhydrazine.