Reference

Coating of metal pipes

Coating of metal pipes. Kobayashi, Yoshikazu; Suzue, Tadayuki; Kose, Haruo (Kansai Paint Co., Ltd., Japan). Japan. Kokai JP 52143934 30 Nov 1977 Showa, 12 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B05D007-14. APPLICATION: JP 76-60422 25 May 1976. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 55 Metal pipes to be coated with powder compns. were primed with aq. compns. contg. Cr(VI) compd., amino acid (or amide or lactam), and polybasic carboxylic acid. For example, a soln. of 40 g CrO3 and 15 g succinic acid [110-15-6] in 0.7 L deionized water was pebble-milled with 10 g barbituric acid [67-52-7] for 16 h, dild. with 1 L deionized water and coated to 300 mg/m2 on a steel pipe which was then heated to 240°, electrostatically coated with Epaclad 3250 [67016-57-3] (epoxy resin), and baked at 240° for 3 min to give a coating with better resistance to impact, salt water, heat, and thermal shock than a pipe with chem. conversion treatment with Zn phosphate in place o the primer.

Composition for bleaching cellulose-containing fibrous semifinished products

Composition for bleaching cellulose-containing fibrous semifinished products. Perminov, E. D.; Buinitskaya, M. I.; Ivleva, I. N.; Olenin, A. G. (All-Union Scientific-Industrial Enterprises of the Cellulose-Paper Industry, USSR). U.S.S.R. SU 597767 15 Mar 1978 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1978, 55(10), 96-7. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: D21C009-16. APPLICATION: SU 76-2339164 5 Mar 1976. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) Product quality was improved and wastewater pollution was reduced by using a bleaching compn. contg. H2O2 0.01-0.5, caustic soda 0.03-0.15, a N compd. stabilizer 0.023-0.115%, and the balance water. The N compd. could be barbituric acid [67-52-7], NH3, (NH4)2SO4, or NaNO3.