C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
400/4906, 400/64
C08J 3/22 (2006.01) C08L 21/00 (2006.01)
Patent
CA 1312687
Abstract of the Disclosure RUBBER CONTAINING MATRIX-ANTIDEGRADANTS There is disclosed the use of matrix-antidegradants in rubber and a process for the production of matrix-antidegradants. More specifically, this invention is directed to microparticles of vulcanized rubber containing high levels of para-phenylenediamine type antiozonants which have a particle diameter of 100 microns or less. The matrix-antidegradant or microparticles prepared according to this invention provide long term protection to rubber articles that are subject to ozone and oxygen attack.
580980
Benko David Andrew
Evans Larry Richard
Harris Frank Wayne
Waddell Walter Harvey
Smart & Biggar
The Goodyear Tire & Rubber Company
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