CAS: 61790-14-5; Lead(Ii) Cyclohexanecarboxylate

相似化合物

16200-85-4 1459-29-6 62637-99-4

专利信息

专利号:US-5177235-A
优先权日:1992-06-11
标题 :Synthesis of tetraalkylsilanes
发明人：EISENBERG DAVID C; ROBINSON GENE C
权利人:ETHYL CORP
摘要:This invention relates to a process for preparing tetrahydrocarbylsilane in high yield, comprising: a) forming a reaction mass from molten metal and trihydrocarbylaluminum, in an hydrocarbon solvent under an inert gas atmosphere; b) maintaining the reaction mass at a temperature in the range of from about 100° to about 130° C. for a period of time sufficient to form sodium tetrahydrocarbylaluminate; c) contacting the sodium tetrahydrocarbylaluminate with organotrihalosilane; and d) heating the contacted tetrahydrocarbylaluminate and organotrihalosilane to a temperature and for a period of time sufficient to form the tetrahydrocarbylsilane, wherein the tetrahydrocarbylaluminate and tetrahydrocarbylsilane are formed at a pressure of less than about 3000 KPa and wherein the hydrocarbyl group of the tetrahydrocarbyl silane is one or a mixture of hydrocarbyl groups having less than about 8 carbon atoms each.

专利号:US-2010121022-A1
优先权日:2006-10-17
标 题 :1,3-dipolar cycloaddition of azides to alkynes
发明人：MUSA OSAMA M; SRIDHAR LAXMISHA M; YUAN-HUFFMAN QINGWEN WENDY
权利人:MUSA OSAMA M; SRIDHAR LAXMISHA M; YUAN-HUFFMAN QINGWEN WENDY
摘要:A process for the bulk polymerization, in the absence of any solvent, of a reactant containing azide functionality and a reactant containing a terminal alkyne functionality, in the presence of Cu (I) catalyst or in the presence of a Cu(II) catalyst without a reducing agent, is described. Polymerization can be achieved at temperatures less than 100° C., which is suitable for low temperature cures. A controlled synthesis for low molecular weight oligomers is disclosed.

专利号:JP-S5837022-A
优先权日:1981-08-12
标题:Heterogeneous one-component system of polyol/diphenylmethaneuretdione diisocyanates with long shelf life, process for their preparation and their use for the synthesis of high molecular weight polyurethanes

专利号:DE-3131780-A1
优先权日:1981-08-12
标 题 :LONG-TERM STORAGE, HETEROGENEOUS COMPONENT SYSTEMS MADE OF POLYOL- / DIPHENYLMETHANE-URETDION-DIISOCYANATES, METHODS FOR THEIR PRODUCTION AND THEIR USE FOR THE SYNTHESIS OF HIGHLY MOLECULAR POLYURETHANE

专利号:EP-0071898-B1
优先权日:1981-08-12
标题:Heterogeneous one-component systems having an extended pot-life from polyol/diphenylmethane-uretdione diisocyanates, process for their preparation and their use in the synthesis of high-molecular polyurethanes