Reference

Optical glass with high refractive index and weathering resistance

Optical glass with high refractive index and weathering resistance. (Hitachi, Ltd.; Hitachi Cable, Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58135150 A2 11 Aug 1983 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C03C003-04; C03B020-00; C03C003-30; C03C013-00. ICA: C03B037-00; G02B005-14. APPLICATION: JP 82-17444 8 Feb 1982. DOCUMENT TYPE: Patent CA Section: 57 (Ceramics) A soln. contg. Si alkoxide and Ta, Zr, Ti, Sb, and/or Nb is mixed with P or a P compd., hydrolyzed, and sintered. The addn. of P or its compds. prevents pptn. of oxide crystals of the additive elements. Thus, a mixt. contg.There are some commonly used reagents with their cas registry numbers 1314-61-0 and 7723-14-0 in this article. PO(OMe)3 10, Ta(OEt)5 4, and Si(OMe)4 86 mol% was mixed with MeOH and water, gelled at 70°, dried, and sintered at 1100° to give a glass contg. no cryst. substance and having n 1.49-1.55. .

Glass mirrors

Glass mirrors. (Nozawa Glass Kogyo K. K., Japan). Jpn. Kokai Tokkyo Koho JP 58126503 A2 28 Jul 1983 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: G02B005-08; C03C017-34. 1306-19-0 and 1314-61-0 are cas registry numbers of chemicals which are used as reagents here. APPLICATION: JP 82-7676 22 Jan 1982. DOCUMENT TYPE: Patent CA Section: 57 (Ceramics) Transparent glass plates are coated with metal or metal compds. to form reflecting surfaces and coated with protective glass layers. Thus, a glass plate was coated successively with Ta2O5, CeF3, and Ta2O5 by vacuum deposition, coated with a paste contg. glass (PbO 65, B2O5 10, SiO2 12, ZnO 10, CdO 7%), Fe chromate and a Cu salt, and fired at 560° to give a mirror having high resistance to acids, alkalies, heat, and weathering. .