C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 17/00 (2006.01) C08J 11/10 (2006.01) C08K 3/00 (2006.01) C08L 23/08 (2006.01) C08L 23/16 (2006.01) E04D 5/06 (2006.01) C08L 51/06 (2006.01) C08L 53/00 (2006.01)
Patent
CA 2253083
A method of recycling EPDM rubber including the steps of devulcanizing previously cured EPDM rubber and adding the devulcanized EPDM rubber to a composition for forming an elastomeric membrane for roofing, the composition including a rubber mixture including from about 50 to about 95 parts by weight virgin EPDM rubber, and from about 5 to about 50 parts by weight of the devulcanized EPDM rubber, to total one hundred parts by weight rubber, from about 75 to about 300 parts by weight phr of a filler, from about 35 to about 135 parts by weight phr of a processing oil, and a cure package.
Davis James A.
Fannin Brenda J.
Mckamie J. Arvis
Bfs Diversified Products Llc
Bridgestone/firestone Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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