Reference

Resin compositions for sliding materials

Resin compositions for sliding materials. (Mitsui Toatsu Chemicals, Inc., Japan). Jpn. Kokai Tokkyo Koho JP 59006243 A2 13 Jan 1984 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L025-18; C08G008-04; C08K007-06; C10M007-26; C10M007-30; F16C033-20. APPLICATION: JP 82-114025 2 Jul 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 38 The title compns. contain 1-50% carbon fiber and 5-50% copolymer of p-isopropenylphenol and 3-30% (on polymer) hexamethylenetetramine (I) [100-97-0]. Thus, :37 acrylonitrile-p-isopropenylphenol-styrene copolymer [75818-66-5] (wt.-av. mol. wt. 8800) 20, KOF-100-CF-01 carbon fiber 5, I 4, and E-6D asbestos 71% were blended and pressed at 180° and 150 kg/cm2 to give a heat-resistant sliding compn.

Hardened spherical phenolic resins

Hardened spherical phenolic resins. (Gunei Chemical Industry Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59006208 A2 13 Jan 1984 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08G008-08; B01D015-08; C04B031-30; G01N031-08. APPLICATION: JP 82-113977 2 Jul 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) The title resins are prepd. by curing a spherical resol phenolic resin dispersion (prepd. from phenols and HCHO in the presence of a water-sol. polymer and a N-contg. catalyst; N-binding index 0.5-2.0; clouding point 2-15) by adding an acidic catalyst to the dispersion, dehydrating, and drying the resin. The resins are useful as column fillers for anal. equipment and for light-wt. aggregates. Thus, PhOH 500, 42% formalin 646, 25% aq. NH3 23, 40% aq. hexamethylenetetramine (I) [100-97-0] 35, and 11% aq. sapond. poly(vinyl alc.) (av. d.p. 1700) 660 g were mixed 2 h at 60°; then 53 g I and 200 g HCl were added (pH <1) and heated 4 h at 95° to give hardened spherical PhOH-HCHO copolymer [9003-35-4].