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    • 4. 发明申请
    • Method for the production of epoxidized polysulfides
    • 生产环氧化多硫化物的方法
    • US20050131207A1
    • 2005-06-16
    • US10507418
    • 2003-03-08
    • Michael ZeitlerNils KottnerManfred Bergfeld
    • Michael ZeitlerNils KottnerManfred Bergfeld
    • C08G59/02C08L81/04C08F8/08
    • C08G59/02C08G2650/02C08L81/04
    • Disclosed is a method for producing polymeric polysulfides containing terminal epoxy groups, according to which polysulfides containing terminal thiol groups are reacted with an excess of epichlorohydrin and alkaline lye, water is azeotropically distilled away with epichlorohydrin, the epichlorohydrin-containing epoxidized polysulfide solution is separated from the eliminated salt, the epichlorohydrin is distilled away, and the residue is optionally purified by means of thin film distillation. The reaction product is particularly suitable for the production of high-quality sealants, adhesives, and coatings. Said product has a high degree of purity and an extremely low chlorine content. The inventive method does not require any additional organic solvents and is very environmentally friendly.
    • 公开了一种含有末端环氧基的聚合多硫化物的方法,根据该方法,含有末端巯基的多硫化物与过量的表氯醇和碱性碱液反应,将水与表氯醇共沸蒸馏掉,将含表氯醇的环氧化多硫化物溶液与 除去的盐,表氯醇被蒸馏除去,并且残余物任选地通过薄膜蒸馏进行纯化。 反应产物特别适用于生产高质量的密封剂,粘合剂和涂料。 所述产品具有高纯度和极低的氯含量。 本发明的方法不需要任何额外的有机溶剂,并且是非常环境友好的。
    • 5. 发明授权
    • Process for producing ester quats
    • 生产季铵盐的方法
    • US6166232A
    • 2000-12-26
    • US180942
    • 1998-12-08
    • Manfred BergfeldHartmut AhrensAxel Carstens
    • Manfred BergfeldHartmut AhrensAxel Carstens
    • B01J27/16C07B61/00C07C213/06C07C219/06C07C219/08C07F9/02
    • C07C213/06
    • A process is described for producing ester quats of the formula (I) ##STR1## where X.sup.- is an anion of an inorganic or organic acid, R.sub.a is a C.sub.1 to C.sub.4 alkyl group, R.sub.b and R.sub.c are each, independently of one another, a C.sub.1 to C.sub.3 alkylene group, and R.sub.d is a C.sub.1 to C.sub.22 fragment of a saturated and/or unsaturated aliphatic carboxylic acid, m, n, p, and q are integers, m has a value from 1 to 3, n a value from 0 to 3, p a value from 0 to 1, m+n+p=4, and q has the value 1 or, if m=3, n=0, and p=1, the value 2, in which process a quaternary compound of the formula (II) ##STR2## where X.sup.-, R.sub.a, R.sub.b, R.sub.c, m, n, p, and q have the above meanings, is esterified, in the presence of an oxo acid of phosphorus and/or one of its alkali or alkaline-earth salts as a catalyst, with a saturated and/or unsaturated C.sub.1 to C.sub.22 carboxylic acid, alone or in a mixture, while withdrawing water.
    • PCT No.PCT / EP97 / 02941 Sec。 371日期1998年12月8日第 102(e)日期1998年12月8日PCT提交1997年6月6日PCT公布。 第WO97 / 47588号公报 日本1997年12月18日描述了制备式(I)的酯季铵盐的方法,其中X是无机或有机酸的阴离子,Ra是C1-C4烷基,Rb和Rc各自独立地为一个 另一个是C1至C3亚烷基,Rd是饱和和/或不饱和脂族羧酸的C1至C22片段,m,n,p和q是整数,m具有1至3的值,na值 从0到3,pa值从0到1,m + n + p = 4,并且q具有值1,或者如果m = 3,n = 0和p = 1,则值2,其中过程a 其中X,Ra,Rb,Rc,m,n,p和q具有上述含义的式(II)的季铵化合物在磷的含氧酸和/或其碱之一的存在下被酯化 或碱土金属盐作为催化剂,同时具有饱和和/或不饱和的C1至C22羧酸,单独或混合,同时取出水。
    • 7. 发明授权
    • Thiuram polysulfide
    • 秋兰姆多硫化物生产
    • US5015752A
    • 1991-05-14
    • US732299
    • 1985-05-09
    • Manfred Bergfeld
    • Manfred Bergfeld
    • C07C333/32B01J23/10B01J23/22B01J23/28B01J23/34B01J23/70B01J23/889B01J31/02B01J31/04C07B61/00C07C67/00C07C325/00C07D295/21
    • C07D295/21
    • A process for the production of thiuram polysulfides substituted by aliphatic, araliphatic, cycloaliphatic aromatic and/or hydrocarbon radicals is disclosed. In this process, correspondingly substituted secondary amines are reacted with carbon disulfide and sulfur in a solvent at 0.degree. to 150.degree. C. in the presence of a tertiary amine, a metal-containing catalyst and oxygen or an oxygen-containing gas.By virtue of its high purity, the product obtained by this process may be used directly, i.e., without preceeding purification, for its intended purpose, for examples as a vulcanization accelerator or sulfur donor.This process is particularly desirable for the substantially quantitative yields and selectivities and also for its high economy arising from the reaction being carried out in a single stage without expensive auxiliaries and from the elimination of an additional purification step.
    • 公开了由脂族,芳脂族,脂环族芳族和/或烃基取代的秋兰姆多硫化物的生产方法。 在该方法中,在叔胺,含金属的催化剂和氧气或含氧气体的存在下,相应地取代的仲胺在0℃至150℃的溶剂中与二硫化碳和硫反应。 由于其高纯度,通过该方法获得的产物可以直接使用,即不经纯化,用于其预期目的,例如作为硫化促进剂或硫供体。 该方法对于基本上定量的产率和选择性以及由于反应在单一阶段中进行而没有昂贵的助剂和从另外的纯化步骤的消除而产生的高经济性是特别希望的。