Reference

Liquid copolymerizable polyester resin preparations

Liquid copolymerizable polyester resin preparations. Bailey, Wesley Townsend (Chattem Drug and Chemical Co., USA). Ger. Offen. DE 2702425 4 Aug 1977, 53 pp. (German). (Germany). 64166-24-1 which is the cas registry number is also used here. CODEN: GWXXBX. CLASS: IC: C08L067-06. PRIORITY: US 76-651814 23 Jan 1976. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) An Al compd., i.e., (EtCHMeO)3Al (I) [2269-22-9], (Me2CHO)3Al [555-31-7], (MeOCH2CH2O)3Al [36555-68-7], or Al tris(acetylacetonate) [13963-57-0] was added to unsatd. polyester resin solns. to give thixotropic solns. Thus, a thixotropic soln. contained maleic anhydride-phthalic anhydride-propylene glycol copolymer [25037-66-5] 2200, styrene 1467, and I 33 g. .

Silicate glasses from alkoxides

Silicate glasses from alkoxides. Thomas, Ian M. (Owens-Illinois, Inc., USA). U.S. US 4028085 7 Jun 1977, 4 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C03B005-16. NCL: 065134000. APPLICATION: US 76-655025 3 Feb 1976. DOCUMENT TYPE: Patent CA Section: 57 (Ceramics) Carbon-free silicate glasses were prepd. by combining a hydrolyzable metal alkoxide with a partially hydrolyzed Si tetraalkoxide to form a hydrolyzable metallosiloxane, hydrolyzing with water, and finally distg. to removal all residual alcs. Thus, 130 water and 600 g Si(EtO)4 (I) [78-10-4] were mixed with 20 mL N HNO3, mixed with 1065 g I, combined with 362 g Al tri-sec-butoxide [2269-22-9], hydrolyzed with 160 mL water, mixed with N HNO3 40 mL, trimethyl borate [121-43-7] 858 g, and water 850 mL, allowed to gel, concd. by heating under vacuum, mixed with 500 mL water, and fractionally distd. The aluminoborosilicate product (1090 g) was mixed with 712 g 30% soln. NaOH, heated under vacuum to a solid, and dried under vacuum by heating at 130.degree. and then to 200.degree.. The glass contains .apprx.90 ppb Fe and has no carbonaceous deposits after further melting.