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. 26, 1989
Filed:
Jul. 15, 1987
Applicant:
Inventors:
Thomas M Donuiff, Saratoga Springs, NY (US);
Frederick H Collins, Glens Falls, NY (US);
Assignee:
Astro-Valcour, Incorporated, Glens Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08V / ; C08V / ;
U.S. Cl.
CPC ...
521 60 ; 521 56 ; 521 79 ; 521 81 ; 521 91 ; 521134 ; 521143 ; 521154 ;
Abstract
Moldable foam beads comprising a silane-crosslinked polyolefin foam are produced by mixing a composition comprising a silane-modified polyolefin (such as a silane-grafted polyethylene) and a silanol condensation catalyst in an extruder to produce a melt, then injecting a blowing agent into the melt at a rate effective to produce a desired foam density in the extrudate; extruding and cutting the melt to form foam beads; and exposing the foam beads to moisture to produce silane crosslinking of the polyolefin foam.