High strength papers from floc and fibrids

Details High strength papers from floc and fibrids High strength papers from floc and fibrids

C - Chemistry, Metallurgy

08

G

402/239

C08G 69/32 (2006.01) D21H 13/26 (2006.01) D21H 13/40 (2006.01) D21H 13/50 (2006.01)

Patent

CA 2037232

Fibrid-floc papers yield unexpected improvements in strength when made from a combination of carbon, aramid, or glass fibers and fibrids consisting essentially of Image where n is 4 or 5; X is from 0.01 to 0.50; and Ar is a radical selected from 3,4'- oxydiphenylene, 1,3-phenylene, 1-methyl-2,4-phenylene, and mixtures of such radicals with each other or with up to equimolar amounts of 1,4-phenylene radicals.

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