Thursday, October 22, 2009

US Patent 7605188 - Nanographite polymer foam

This patent from Owens Corning teaches a low-density foam insulation which utilizes thin films of graphite. Claim 1 reads:

1. A multi-functional polymeric foam material comprising:

a) a polymer;

b) a blowing agent; and

c) multi-layered nano-graphite having a size in at least one dimension less than about 100 nanometers, said multi-layered nano-graphite being chemically modified to include carboxyl and phenolic hydroxyl functional groups, wherein other dimensions of said multi-layered nano-graphite are less than about 20 microns.