CAS: 40372-72-3; Bis[3-(Triethoxysilyl)Propyl] Tetrasulfide

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14814-09-6 2550-02-9 52090-18-3

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CAS号5089-70-3 3-氯丙基三乙氧基硅烷 | CAS号220727-26-4 3-辛酰基硫代丙基三乙氧基硅烷 | CAS号106-32-1 辛酸乙酯 | CAS号5089-70-3 3-氯丙基三乙氧基硅烷 | CAS号14814-09-6 γ-巯丙基三乙氧基硅烷 | CAS号60764-86-5 triethoxy-[3-(3... | CAS号56706-10-6 双-[3-(三乙氧基硅)丙基]-二硫化物 | CAS号56706-11-7 4,4,14,14-tetra...

3-氯丙基三乙氧基硅烷置于sodium Sulfide,Sulfur体系中,用 乙醇,甲苯 作为反应溶剂,化学反应 4.0H,反应生成 双-[3-(三乙氧基硅)丙基]-四硫化物
参考文献:一种四硫化双-(γ-丙基三乙氧基硅烷)的溶 剂法合成工艺
标题:一种四硫化双-(γ-丙基三乙氧基硅烷)的溶 剂法合成工艺
摘要:本发明涉及一种四硫化双-(γ-丙基三乙氧基硅烷)的溶剂法合成工艺,四硫化双-(γ-丙基三乙氧基硅烷)可用于子午轮胎及其它橡胶制品中,属于偶联剂技术领域.工艺包括如下工艺步骤:将含9个结晶水的硫化钠及与其摩尔比3.2倍的硫粉;加入与含9个结晶水硫化钠重量比为2倍的甲苯加热脱水,冷却至50oc以下,加入与硫化钠摩尔比1.90倍的γ-氯丙基三乙氧基和甲苯等重量比的无水乙醇;反应完成冷却至室温,过滤除去无机盐及杂质,用甲苯乙醇混合液冲洗无机盐及杂质几次;滤液移至蒸馏器,蒸馏得产品:四硫化双-(γ-丙基三乙氧基硅烷)(si-69).

专利信息

专利号:US-5663395-A
优先权日:1995-11-07
标 题:Process for the selective synthesis of silylalkyldisulphides
发明人：GOEBEL THOMAS; MUENZENBERG JOERG
权利人:DEGUSSA
摘要:A process is disclosed for the selective synthesis of silylalkyldisulphides by desulphurization of the corresponding polysulphides using nucleophilic reagents.

专利号:US-9303056-B2
优先权日:2012-07-25
标题 :Monomer for synthesis of RNA, method for producing same, and method for producing RNA
发明人：KATAOKA MASANORI
权利人:UNIV KOCHI
摘要:The objective of the present invention is to provide a monomer for RNA synthesis which can be efficiently produced and therefore by which the producing cost of RNA can be remarkably decreased, and a method for efficiently producing the monomer in a small number of steps. In addition, the objective of the present invention is also to provide a method by which RNA can be efficiently produced even when a approximately stoichiometry amount of the monomer for RNA synthesis is used. The monomer for RNA synthesis according to the present invention is represented by the following formula (I) or (I′): n nwherein R 1 is a protective group of the hydroxy group and R 2 is an alkyl group or the like.

专利号:US-4638032-A
优先权日:1983-12-12
标 题 :Magnetic particles as supports for organic synthesis
发明人：BENNER STEVEN A
权利人:GENETICS INST
摘要:A support system for organic synthesis comprising magnetic particles in a dispersion medium covalently attached to functional groups having affinity for polymer subunits, and methods for making and using the support system, e.g. for synthesis of oligodeoxynucleotides and polypeptides.

专利号:US-6140434-A
优先权日:1999-01-08
标 题 :Synthesis of high vinyl rubber
发明人：HALASA ADEL FARHAN; HSU WEN-LIANG
权利人:GOODYEAR TIRE & RUBBER
摘要:Metal salts of saturated aliphatic alcohols can be used as modifiers in lithium initiated solution polymerizations of diene monomers into rubbery polymers. Sodium t-amylate is a preferred modifiers because of its exceptional solubility in non-polar aliphatic hydrocarbon solvents that are employed as the medium for such solution polymerizations. However, using sodium t-amylate as the polymerization modifier in commercial operations where recycle is required can lead to certain problems. These problems arise due to the fact that sodium t-amylate reacts with water to form t-amyl alcohol during steam stripping in the polymer finishing step. Since t-amyl alcohol forms an azeotrope with hexane, it co-distills with hexane and thus contaminates the feed stream. The present invention solves the problem of recycle stream contamination. This invention is based upon the discovery of highly effective modifiers that do not co-distill with hexane or-form-compounds during steam stripping which co-distill with hexane. The modifiers of this invention are metal salts of cyclic alcohols. Since the boiling points of these metal salts of cyclic alcohols are very high, they do not co-distill with hexane and contaminate recycle streams. Additionally, metal salts of cyclic alcohols are considered to be environmentally safe. The, subject invention more specifically discloses an initiator system which is comprised of (a) a lithium initiator, (b) a metal salt of a cyclic alcohol, and (c) a polar modifier.

专利号:US-6211345-B1
优先权日:1999-12-22
标 题:Synthesis of cyclic sulfur silanes
发明人：WELLER KEITH J; HWANG LESLEY
权利人:WITCO CORP
摘要:Sulfur-containing norbornanyl silanes are prepared in a simple, solventless manner by the reaction of a norbornenylsilane with sulfur in the presence of a chlorosilane. The resulting silanes may be used without further purification. The silanes were found to give good properties in rubber compositions for low-rolling-resistance tire applications.

专利号:US-8771719-B2
优先权日:2002-08-12
标题 :Synthesis of a bone-polymer composite material
发明人：SHIMP LAWRENCE A; WINTERBOTTOM JOHN M; BOYCE TODD M; KNAACK DAVID
权利人:SHIMP LAWRENCE A; WINTERBOTTOM JOHN M; BOYCE TODD M; KNAACK DAVID; WARSAW ORTHOPEDIC INC
摘要:A method of producing a bone-polymer composite. The method comprises the steps of providing a plurality of bone particles, combining the bone particles with a polymer precursor, and polymerizing the polymer precursor.