Abstract: The invention relates to polymer blends which can be used both in foamed and unfoamed states as a replacement for conventional EPDM and other elastomers. The composition of the blend includes a single-site catalyzed polyolefin resin having a density of below 0.878 g cm−3 and up to 40 weight percent a polyolefin including ethylene and propylene. The polymer blend is cross-linked. The polymer blends are formable-and foamable. The use of sulfur to vulcanize the polymer blend is not necessary. The polymer blends can be used to make foam for floatation or for making gaskets.
Type:
Grant
Filed:
January 25, 2002
Date of Patent:
March 11, 2003
Assignee:
Sentinel Products Corporation
Inventors:
John D. Bambara, Matthew L. Kozma, Todd Cagwin, Robert F. Hurley