Reference

Determination of dipentamethylenethiurams and some products of their transformation during hygienic-chemical studies of vulcanizates

Determination of dipentamethylenethiurams and some products of their transformation during hygienic-chemical studies of vulcanizates. Grushevskaya, N. Yu.; Kazarinova, N. F. (Vses. Nauchno-Issled. Inst. Gig. Toksikol. Pestits., Polim. Plast. Mass, Kiev, USSR). Kauch. Rezina, (9), 45-7 (Russian) 1977. CODEN: KCRZAE. DOCUMENT TYPE: Journal CA Section: 59 (Air Pollution and Industrial Hygiene) Section cross-reference(s): 38, 60 The migration of Vulkacit ZP (zinc 1-piperidinedithiocarboxylate) [13878-54-1], Thiuram MT [bis(1-piperidinethiocarbonyl)tetrasulfide] [120-54-7], Pentathiuram [bis(1-piperidinethiocarbonyl)disulfide] [61512-94-5], and Carbamate PMP (piperidine 1-piperidinedithiocarboxylate) [6250-27-7] from vulcanizates into their surroundings was detd. by trapping in org. solvents and thin-layer chromatog. Thiuram disulfides are the main components migrating from vulcanizates into water, regardless of the vulcanizing agent used. Dithiocarbamates do not migrate into acidic solns. The extent of migration of dithiocarbamates and their degrdn. products is detd., structure, the nature of the environment, and the conditions of contact.

Modified vinyl chloride polymers

Modified vinyl chloride polymers. (Bridgestone Tire Co., Ltd., Japan). Jpn. 92521-64-7 is just another one chemical used in this study. Kokai Tokkyo Koho JP 59074145 A2 26 Apr 1984 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L027-06; C08L023-34. APPLICATION: JP 82-183701 21 Oct 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 39 Vinyl chloride polymers are plasticized without loss of breaking strength or toughness by blending them with chlorosulfonated polyethylene (I) and a crosslinking agent for I, then heating to cure. Thus, vinyl acetate-vinyl chloride copolymer [9003-22-9], I, Epikote 828 [25068-38-6], dipentamethylenethiuram tetrasulfide [120-54-7], carbon black, and Ca stearate were blended and heat-molded to give test pieces having excellent tensile breaking strength and toughness. .