Abstract: 3-SALICYLAMIDO AND 3-BENZOSALICYLAMIDO-1,2,4-TRIAZOLES ARE PROVIDED WHICH ARE USEFUL IN THE ENHANCEMENT OF THE RESISTANCES OF OLEFIN POLYMERS TO HEAVY METAL-CATALYZED OXIDATIVE DETERIORATION.Stabilizer compositions consisting essentially of at least one olefin polymer stabilizer and such amidotriazoles; olefin polymer compositions, such as propylene polymer compositions, containing such amidotriazoles and a process for enhancing the resistance of olefin polymers to copper-catalyzed degradation by incorporation of such amidotriazoles or such stabilizer compositions are also provided.

Abstract: Dialkyl peroxides containing at least one epoxy grouping alpha to the peroxide linkage. Such peroxides have been found to be useful as catalysts in the preparation of heat cured polymer systems such as unsaturated polyester resins.

Abstract: Improved organic aldehyde and ketone peroxide compositions useful for initiating the polymerization of polyesters formed from the concurrent reaction of a beta dione such as 2,4-pentanedione and a different (non-beta dione) ketone or aldehyde, for example methyl ethyl ketone, with aqueous hydrogen peroxide.

Abstract: A co-initiator system for polymerization of ethylenically unsaturated monomers comprising a preformed nitrile containing azo compound or symmetrical, diacyl peroxide in combination with an in situ or preformed acyl peroxy alkyl carbonate.