Reference

Impact-resistant thermoplastic polymers

Impact-resistant thermoplastic polymers. (Atlantic Richfield Co., USA). Jpn. Kokai Tokkyo Koho JP 58098320 A2 11 Jun 1983 Showa, 12 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08F291-02; C08F287-00. APPLICATION: JP 81-195515 4 Dec 1981. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Impact-resistant thermoplastic resins are prepd. by polymg. arom. vinyl compds. and unsatd. dicarboxylic acids in the presence of 5-20% (based on total compn.) diene-based rubber and 2-20% rubber rich in arom. vinyl compd. units. Thus, a mixt. contg. styrene 71.5, maleic anhydride 7.5, Stereon 720 (I) 15, and KRO 3 (II) 5% was radically polymd. to give a graft copolymer [27288-99-9] having Izod notched impact strength 4.0 ft-lb/in., falling dart impact strength 500 in.-lb, Vickers softening temp. 117°, tensile strength 4800 psi, flexural strength 8500 psi, and flexural modulus 320,000 psi, compared with 3.7 ft-lb/in, 442 in-lb, 116°, 4300 psi, 7500 psi, and 294,000 psi, resp., for a similar copolymer contg. 20% I units and no II units.

Aromatic vinyl resin composition with high electrical conductivity

Aromatic vinyl resin composition with high electrical conductivity. Tanaka, Kazunobu; Mori, Kyozo (Daicel Chemical Industries, Ltd., Japan). Ger. Offen. DE 3418058 A1 22 Nov 1984, 16 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08L025-02; C08L025-04; C08L035-06; C08L021-00; C08L051-00; C08K003-08; C08K007-06. APPLICATION: DE 84-3418058 15 May 1984. PRIORITY: JP 83-85211 16 May 1983. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) A copolymer contg. a vinylarene and an unsatd. dicarboxylic acid is mixed with a metal filler to prep. elec. conducting, impact-resistant compns. Thus, a copolymer [27288-99-9] prepd. by grafting 100 parts styrene-maleic anhydride mixt. on 15 parts polybutadiene was mixed (60 parts) with 40 parts Al fibers (3 mm long, 90 m thick). The mixt. gave moldings having Izod impact strength 9.3 kg cm/cm and sp. vol. resistance 0.15 W cm.