Reference

Antifoulants for thermal cracking

Antifoulants for thermal cracking. Reed, Larry E.; Porter, Randall A.; Farha, Floyd E., Jr.; Guillory, Jack P. (Phillips Petroleum Co. , USA). U.S. US 4404087 A 13 Sep 1983, 13 pp. Cont.-in-part of U.S. Ser. No. 248,614, abandoned. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C10G009-16. NCL: 208048000AA. APPLICATION: US 82-424889 30 Sep 1982. PRIORITY: US 82-348614 12 Feb 1982. DOCUMENT TYPE: Patent CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) To prep. an antifouling agent for petroleum cracking, Sn(C8H15O2)2 [1912-83-0] 0.68, Sb(C8H15O2)3 [13417-00-0] 0.32, and Ge(OEt)4 [14165-55-0] 0.42 g were dissolved in PhMe (to make 10 mL), and 2 mL of the soln. was dil. with PhMe to make 10 mL. The dild. soln. was applied to a sample of Incoloy 800 [11121-96-3] and the sample was heated in air at 700° for 1 min. In 3 cumulative 20-h coking tests (in 1:1 C2H4-steam and N at 900°) alternating with 50-min decoking in N-steam-air, the coke depositions were 2.8, 5.0, and (blank), resp., as against 19.9, 21.5, and 24.2 (arbitrary units), resp., in the absence of an antifouling agent. The antifouling agent is also effective if it is added to the feedstock instead of being coated on the metal. The individual compds. and binary systems are also used.

Composition based on diorganopolysiloxane with terminal hydroxyl groups

Composition based on diorganopolysiloxane with terminal hydroxyl groups. Vysotskii, V. A.; Grinblat, M. P.; Gar, T. K.; Prons, V. N.; Mironov, V. F.; Berliner, E. M. (USSR ). U.S.S.R. SU 619497 15 Aug 1978 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1978, 55(30), 85. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: C08L083-04. APPLICATION: SU 76-2368735 3 Jun 1976. DOCUMENT TYPE: Patent CA Section: 38 (Elastomers, Including Natural Rubber) Vulcanizates with increased tear strength were prepd. from compns. contg. diorganopolysiloxane (viscosity 2000-50,000 cP) 100, tetraalkoxygermane Ge(OR)4 (R = Et [14165-55-0] Pr [25063-26-7], or Bu [25063-27-8]) 0.1-2, inorg. filler 5-40, heat stabilizer 3-8, and hardening catalyst 0.05-3 parts.