Reference

Pneumatic tire with sidewall composition

Pneumatic tire with sidewall composition. Sandstrom, Paul H.; Lal, Joginder (Goodyear Tire and Rubber Co., USA). U.S. US 4004627 25 Jan 1977, 8 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08F015-06. NCL: 152355000. APPLICATION: US 75-642273 19 Dec 1975. DOCUMENT TYPE: Patent CA Section: 38 (Elastomers, Including Natural Rubber) Compns. for sidewalls for rubber tires are a blend of an EPDM rubber, a rubbery copolymer contg. 70-98% .gtoreq.1 C4-10 .alpha.-olefin and 2-30% .gtoreq.1 C5-30 nonconjugated polyene contg. 2-8 double bonds, a mixt. of highly unsatd. rubber contg. 30-80% natural rubber, and triallyl cyanurate (I) [101-37-1], various maleimides, or various anhydrides. Thus, :30 natural rubber-SBR-EPDM blend, vulcanized using conventional additives and 2.0 phr I, had peel adhesion to typical carcass rubber compn. 26 lb/in. compared with 19 for a similar compn. not contg. I.

Electrical insulation masses based on ethylene-vinyl acetate copolymers

Electrical insulation masses based on ethylene-vinyl acetate copolymers. Koehnlein, Ernst; Glaser, Rudolf; Koessler, Ludwig (BASF A.-G., Ger.). Ger. Offen. DE 2602689 28 Jul 1977, 9 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: H01B003-28. APPLICATION: DE 76-2602689 24 Jan 1976. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) Elec. insulation with improved radiochem. crosslinkability and resistance to thermal degrdn. contains 99.5-90.5:0.5-9.5 ethylene-vinyl acetate copolymer (I) [24937-78-8] 100, 1,2-dihydro-2,2,4-trimethylquinoline polymer (II) [26780-96-1] 0.1-2.0, triallyl cyanurate (III) [101-37-1] 0.5-5, and S 0-0.1 parts. Thus, a mixt. of 97.7:2.3 I 100, II 0.6, and III 2.0 parts crosslinked with 10 Mrad 2.5-MeV electron beams has swelling factor 9.0, gel content 72%, m.p. 104.degree., and heat resistance (150.degree. in air) 20 days; compared with 20, 60, 104, and 20, resp., in the absence of III, and 15, 62, -, and 1, resp., with no additives.