CAS: 7789-79-9; Calcium Hypophosphite

上下游产品

water phosphorushydrogen bromide nickel ammonium phosphinate gold

专利信息

专利号:US-5627257-A
优先权日:1994-05-27
标题 :Process for the production of polyamides on the basis of α,ω-dinitriles
发明人：LIEHR HARTMUT
权利人:ZIMMER AG
摘要:Process for synthesis of spinnable polyamide from α, ω-alkyldinitriles and α, ω-alkyldiamines and excess water, where a) the aqueous solution of the dinitrile is mixed with a catalytic amount of at least one oxygen-containing acid of phosphorus and/or a water-soluble salt of calcium, zinc, cadmium or manganese in the absence of the diamine, and the pH of this solution is adjusted to an initial value in the range of 2.0 to 4.0 before hydrolysis by adding a saturated aliphatic or aromatic dicarboxylic acid and the dinitrile is and the amide-containing precursors derived therefrom are hydrolyzed to dicarboxylic acid at an elevated temperature under autogenous pressure, whereby the hydrolysis is controlled by conductometric determination of the hydrolysate, and b) at least an equimolar amount of diamine is added to the solution from step a) and the mixture is subjected to polycondensation to form polyamide [nylon].

专利号:US-4547482-A
优先权日:1982-07-21
标题:Catalyst composition suited for synthesis of methanol
发明人：OSUGI MINORU; NAKAMURA TADASI; EBATA SHUJI
权利人:MITSUBISHI GAS CHEMICAL CO
摘要:A catalyst composition comprising copper oxide, zinc oxide and an oxyacid of phosphorus or its salt; and a method for producing methanol by reacting carbon monoxide and/or carbon dioxide with hydrogen in the vapor phase in the presence of a catalyst, wherein the catalyst is the aforesaid catalyst composition which has been activated by reduction with a hydrogen-containing gas.

专利号:US-2025033988-A1
优先权日:2021-12-21
标 题 :Synthesis, capping and dispersion of high refractive index nanocrystals and nanocomposites
发明人：WIACEK ROBERT J; MONICKAM SELINA THOMAS; YAZDANPARAST MOHAMMAD SADEGH; SZYCHOWSKI BRIAN; FU GUOYI; GUSCHL PETER CHRISTOPHER; MCCLINTOCK GRACE E M; ZHENG LEI; WILLIAMS ZEHRA SERPIL GONEN; AMIRMOSHIRI MOHAMMADREZA; TADROS NICOLE JOUD
权利人:PT SPE SUBCO LLC
摘要:Preparation of capped metal oxide nanocrystals comprising a metal oxide shell that are photocatalytically and thermally stable and their dispersions in monomers, oligomers, and polymers, as well as the resulting formulations and nanocomposite films. These nanocrystals are highly monodisperse with nanocrystal size between 3-100 n. Resultant formulations incorporating these nanocrystals and a matrix material are highly stable and result in nanocomposites that have high refractive index, are highly transparent, have minimal to no change in absorption upon thermal or UV processing and are optically transparent in the visible wavelengths with very little or no scattering.

专利号:US-5288882-A
优先权日:1992-12-21
标题:Process for recovering an optically active epoxy alcohol
发明人：SHIH T THOMAS; SHUM WILFRED P-S
权利人:ARCO CHEM TECH
摘要:A method of recovering optically active epoxy alcohols from asymmetric epoxidation reaction mixture is provided whereby the epoxy alcohol may be obtained in high yield with minimal degradation of optical purity. The process is also suitable for the synthesis of useful organic sulfonate derivatives of chiral epoxy alcohols.

专利号:CN-1890251-A
优先权日:2003-11-05
标题 :Direct Synthesis of Alkyl Halosilanes

专利号:EP-0101563-B1
优先权日:1982-07-21
标题 :Catalyst composition suited for synthesis of methanol