Reference

Synthesis of polyurethane lacquer in the presence of reaction catalysts

Synthesis of polyurethane lacquer in the presence of reaction catalysts. Larkina, T. A.; Gurova, N. P.; Zurabyan, K. M. (USSR). Soversh. Tekh. Tekhnol. Proizvod. Kozhi, Obuvi Dubil'nykh Ekstraktov, 2, 53-62 (Russian) 1975. CODEN: STTEDZ. DOCUMENT TYPE: Journal CA Section: 42 (Coatings, Inks, and Related Products) The addn. of 0.05% cobalt nitrate (I) [10141-05-6] catalyst to castor oil decreased by 2-2.5 times the time needed to react it with 2,4-tolyene diisocyanate (II) [584-84-9] and improved the mech. properties of coatings based on castor oil-II reaction products. The reaction in cyclohexane contg. I was 95% complete in 24 h at 60.degree.. Films, obtained by evapg. the reaction mixt., were less elastic, but had higher tensile strength than the films prepd. as above, but without I. The addn. of 0.6% silicone oil KAV-1 to the reaction mixt. increased the rate of solvent evapn. from it.

Synthesis and characterization of nanophasic LaCoO3 powders

Synthesis and characterization of nanophasic LaCoO3 powders. Armelao, L.Several substances are used for example 10099-59-9 and 10141-05-6 which are their cas registry numbers.; Bandoli, G.; Barreca, D.; Bettinelli, M.; Bottaro, G.; Caneschi, A. (CNR-ISTM and INSTM, Dipartimento CIMA, Universita di Padova, Padua 35131, Italy). Surface and Interface Analysis, 34(1), 112-115 (English) 2002 John Wiley & Sons Ltd. CODEN: SIANDQ. ISSN: 0142-2421. DOCUMENT TYPE: Journal CA Section: 78 (Inorganic Chemicals and Reactions) Section cross-reference(s): 73, 77 Nanophasic LaCoO3 powders were synthesized from inorg. compds. both in molten chloride fluxes and by using a soln. combustion synthesis procedure. The samples were prepd. in air and underwent subsequent heat treatments to yield the perovskite cryst. phase. The compn. and microstructure of the samples were studied by XPS, x-ray-induced AES, x-ray diffraction and ESR. Further information was gained by magnetic measurements. Nanophasic LaCoO3 powders with an av. crystallite size of 35 nm were obtained. .