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1. 发明授权

US4006201A Process for the production of polyvinyl chloride graft copolymers 失效
标题翻译：生产聚氯乙烯接枝共聚物的方法
公开(公告)号：US4006201A
公开(公告)日：1977-02-01
申请号：US502869
申请日：1974-09-03
申请人： Johann Bauer , Klaus Adler , Gerhard Beier , Heinz Hefner , Alex Sabel
发明人： Johann Bauer , Klaus Adler , Gerhard Beier , Heinz Hefner , Alex Sabel
IPC分类号： C08F14/00 , C08F255/00 , C08F255/02 , C08F263/04 , C08F263/00 , C08L31/04
CPC分类号： C08F255/026 , C08F263/04
摘要： A process for the production of polyvinyl chloride graft copolymers from ethylene/vinyl acetate copolymers and vinyl chloride by graft polymerization in the aqueous phase consisting essentially of adding a water-soluble, free-radical-forming polymerization catalyst to an aqueous dispersion of an ethylene/vinyl acetate copolymer optionally containing additional emulsifiers and/or dispersion stabilizers, heating said dispersion to the polymerization temperature, adding vinyl chloride gas above said agitated heated dispersion at such rate that the pressure is below the saturation pressure of vinyl chloride at the polymerization temperature, and recovering said polyvinyl chloride grafted copolymer.
摘要翻译：一种通过在水相中接枝聚合从乙烯/乙酸乙烯酯共聚物和氯乙烯生产聚氯乙烯接枝共聚物的方法，其基本上是将水溶性形成自由基的聚合催化剂加入到乙烯/ 乙酸乙烯酯共聚物，任选地含有另外的乳化剂和/或分散稳定剂，将所述分散体加热到聚合温度，在聚合温度下，使压力低于氯乙烯饱和压力的速率加入所述搅拌的加热分散体上方的氯乙烯气体，回收所述聚氯乙烯接枝共聚物。

2. 发明授权

US5580921A Storage-stable polysiloxane composition which gives permanently water-wettable vulcanizates 失效
标题翻译：储存稳定的聚硅氧烷组合物，其赋予永久性水润湿硫化橡胶
公开(公告)号：US5580921A
公开(公告)日：1996-12-03
申请号：US196106
申请日：1994-02-10
申请人： Michael Stepp , Heinz Hefner, deceased , Peter Huber , Johann Mueller , Richard Schmidlkofer , Arnold Garhammer
发明人： Michael Stepp , Heinz Hefner, deceased , Peter Huber , Johann Mueller , Richard Schmidlkofer , Arnold Garhammer
IPC分类号： A61K6/10 , C08G77/20 , C08L83/04 , C08L83/05 , C08L83/07 , C08L83/12
CPC分类号： A61K6/10 , C08G77/20 , C08L83/04 , C08G77/12 , C08G77/16 , C08G77/18 , C08G77/24
摘要： The present invention relates to storage-stable polysiloxane compositions which give permanently water-wettable elastomers. The polysiloxane compositions of the present invention which vulcanize to yield elastomers are useful as dental impression compositions.
摘要翻译： PCT No.PCT / EP92 / 02036 Sec。 371日期：1994年2月10日 102（e）1994年2月10日PCT PCT 1992年9月3日PCT公布。出版物WO93 / 04659 日本1993年3月18日本发明涉及赋予永久性水润湿弹性体的储存稳定的聚硅氧烷组合物。硫化产生弹性体的本发明的聚硅氧烷组合物可用作牙印模组合物。

3. 发明授权

US4600731A Paste composition containing an organopolysiloxane, platinum and filler 失效
标题翻译：含有有机聚硅氧烷，铂和填料的糊剂组合物
公开(公告)号：US4600731A
公开(公告)日：1986-07-15
申请号：US705163
申请日：1985-02-25
申请人： Eckhart Louis , Wolfgang Hechtl , Heinz Hefner
发明人： Eckhart Louis , Wolfgang Hechtl , Heinz Hefner
IPC分类号： C08L83/00 , A61K6/10 , C08K3/36 , C08K5/01 , C08L83/07
CPC分类号： A61K6/10 , C08K3/36 , C08K5/01
摘要： A paste composition which is used in the preparation of dental impression compositions containing:(a) at least 100 ppm by weight, based on the weight of the paste composition of platinum calculated as the element;(b) 35 to 75 percent by weight, based on the weight of the paste composition, of a diorganopolysiloxane which contains at least 2 SiC-bonded vinyl groups per molecule and has a viscosity of at least 100 mPa.s at 25.degree. C.;(c) 10 to 25 percent by weight, based on the weight of the paste composition, of a hydrocarbon which is liquid or spreadable at room temperature and is free of aliphatic carbon-carbon multiple bonds; and(d) 3 to 15 percent by weight, based on the weight of the paste composition, of hydrophobic silicon dioxide having a surface area of at least 50 m.sup.2 /g;in which the sum of the percentages of (a) to (d) including other additives which may be present in the paste composition is equal to 100 percent. The paste composition is mixed with the other ingredients of the dental impression compositions such as diorganopolysiloxanes having SiC-bonded vinyl groups, organopolysiloxanes having at least 3 Si-bond hydrogen atoms per molecule and filler to form dental impression compositions.
摘要翻译：一种用于制备牙科印模组合物的糊剂组合物，其包含：（a）基于作为元素计算的铂糊组合物的重量至少100重量ppm; （b）基于糊料组合物的重量，35至75重量％的二有机聚硅氧烷，每分子含有至少2个与SiC键合的乙烯基，并且在25℃下具有至少100mPa.s的粘度。 ; （c）基于糊料组合物的重量计10至25重量％的在室温下为液体或可铺展且不含脂族碳 - 碳多键的烃; 和（d）3至15重量％，基于糊料组合物的重量，表面积至少为50m 2 / g的疏水性二氧化硅; 其中包括可能存在于糊料组合物中的其它添加剂的（a）至（d）的百分比之和等于100％。糊剂组合物与牙印模组合物的其它成分如具有SiC键合的乙烯基的二有机聚硅氧烷，每分子具有至少3个Si-键氢原子的有机聚硅氧烷和填料混合以形成牙印模组合物。

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