Detail of "24979-70-2"

Reference

Heat-resistant resins

Heat-resistant resins.Some chemicals with cas registry numbers like 53831-70-2 and 53860-54-1 are also used. (Hitachi, Ltd.; Hitachi Chemical Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58198524 A2 18 Nov 1983 Showa, 7 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08G059-62; C08K003-10; C08L063-00; H01B003-40. APPLICATION: JP 82-80258 14 May 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) The thermal stability of epoxy resin moldings contg. metal inserts is improved by blending the resins with alkenylphenol polymers and optionally using N-halophenylurea derivs. or tetrasubstituted boron salts of ammonium, phosphonium, or arsonium compds., or imidazoles, pyridines, piperidines, or morpholines as crosslinking catalysts. Thus, DEN-438 [63957-64-2] (novolak epoxy resin) 100, Resin M (poly-p-vinylphenol) [24979-70-2] 68, tetraphenylphosphonium tetraphenylborate [15525-15-2] 3, powd. vitreous silica 400, chopped glass fiber 100, and Hoechstwax E 2 parts were kneaded together at 40-60°, then transfer molded around metal inserts at 180° and 150 kg/cm2 for 3 min, then post-cured 5 h at 200° to obtain moldings having insert adhesion 235 kg initially, and 240, 223, and 212 kg after 5, 12, and 30 days at 270°. .

Poly(allyl)poly(alkenylphenol) polymer compositions

Poly(allyl)poly(alkenylphenol) polymer compositions. Hefner, Robert E., Jr. (Dow Chemical Co., USA). U.S. US 4426496 A 17 Jan 1984, 11 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08L067-00; C08L067-08; C08L077-12. NCL: 525168000. APPLICATION: US 82-437249 28 Oct 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Thermosetable resin compns. are provided comprising a mixt. 39290-46-5 and 24979-70-2 which are cas registry numbers are also used here. of (1) an unsatd. monomer, (2) an unsatd. resin selected from an unsatd. polyester or polyesteramide, vinyl ester resin and dicyclobutadiene-modified same, and (3) a poly(alkyl)poly(alkenylphenol). Thus, dicyclopentadiene-maleic anhydride-piperazine copolymer [89231-04-9] 199.5, styrene 133.0, and poly(p-vinylphenol)poly(allyl ether) [24979-70-2] 17.5 g were mixed, and a cure system contg. 1.0% Bz2O2 and dimethylaniline was added followed by curing 2 h at 93°. The clear, unfilled casting had heat distortion temp. 112.2° and tensile strength 37.9 MPa. .