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91. 发明授权

US5661198A Ablator compositions 失效
标题翻译：消音器组成
公开(公告)号：US5661198A
公开(公告)日：1997-08-26
申请号：US312734
申请日：1994-09-27
申请人： Yoshifumi Inatani , Kazunori Kawasaki , Tadashi Harada , Hironao Fujiki , Mikio Shiono
发明人： Yoshifumi Inatani , Kazunori Kawasaki , Tadashi Harada , Hironao Fujiki , Mikio Shiono
IPC分类号： C08K7/14 , C08K7/22 , C08L83/04 , C08L83/07 , C09K21/14 , C08G77/06
CPC分类号： C09K21/14 , B64G1/58 , B64G1/62 , C08K7/14 , C08K7/22 , C08L83/04 , C08G77/12 , C08G77/20 , C08G77/70
摘要： The invention relates to an ablator composition for providing ablation protection. The ablator composition comprises 100 parts by weight of a mixture of vinyl-containing organopolysiloxanes, the mixture containing 50-80 wt. % of a diorganopolysiloxane which contains vinyl groups and 20-50 wt. % of a silicone resin which contains vinyl groups; an organohydrogenpolysiloxane containing in one molecule thereof at least three hydrogen atoms which are directly bonded to silicon atoms thereof; a catalyst which is at least one selected from the group consisting of metallic platinum and platinum compounds; up to 150 parts by weight of silica microballoons; and at least one selected from the group consisting of up to 15 parts by weight of quartz glass fibers and up to 15 parts by weight of carbon fibers. An ablator material prepared by curing the ablator composition has a low surface recession rate even under a condition of a high heating rate such as about 4 MW/m.sup.2 and a high pressure such as about one atmospheric pressure.
摘要翻译：本发明涉及一种用于提供消融保护的消融器组合物。消融器组合物包含100重量份的含乙烯基的有机聚硅氧烷的混合物，该混合物含有50-80wt。％的含有乙烯基的二有机聚硅氧烷和20-50wt。含有乙烯基的硅树脂的％在一个分子中含有至少三个与其硅原子键合的氢原子的有机氢聚硅氧烷; 选自金属铂和铂化合物中的至少一种的催化剂; 最多150重量份的二氧化硅微球; 和至少一种选自由至多15重量份的石英玻璃纤维和至多15重量份的碳纤维组成的组。即使在高加热速度如约4MW / m 2和高压例如约一个大气压的条件下，通过固化消融器组合物制备的消融器材料也具有低表面凹陷率。

92. 发明授权

US5506303A Process for preparing a liquid silicone rubber base composition 失效
标题翻译：液体硅橡胶基础组合物的制备方法
公开(公告)号：US5506303A
公开(公告)日：1996-04-09
申请号：US254828
申请日：1994-06-06
申请人： Takeo Yoshida , Masanobu Miyakoshi , Hironao Fujiki , Shiniti Ide
发明人： Takeo Yoshida , Masanobu Miyakoshi , Hironao Fujiki , Shiniti Ide
IPC分类号： C08J3/20 , C08K3/36 , C08K9/06 , C08L83/04 , C08K3/00
CPC分类号： C08K9/06
摘要： A process for preparing a liquid silicone rubber base composition of the type which comprises (A) an organopolysiloxane of the following average compositional formula (1)R.sub.a SiO.sub.(4-a)/2 (1)wherein each R independently represents an unsubstituted or substituted monovalent hydrocarbon group and a is a value of from 1.95 to 2.05, and (B) a finely divided silica filler is described. The process comprises the steps of mixing a first portion of the ingredient (A) and the ingredient (B) at a temperature not higher than 80.degree. C., further mixing a second portion of the ingredient (A) with the mixture obtained in the first step at a temperature not higher than 80.degree. C. and subjecting the resultant mixture to thermal treatment at a temperature of 130.degree. to 200.degree. C. By this, the base composition has good fluidity and is able to yield a cured product having good tear strength under stress.
摘要翻译：一种制备这种类型的液体硅橡胶基础组合物的方法，其包含（A）下列平均组成式（1）的有机聚硅氧烷：RaSiO（4-a）/ 2（1）其中每个R独立地表示未取代或取代的一价烃基，a为1.95〜2.05的值，（B）细分二氧化硅填料。该方法包括在不高于80℃的温度下将成分（A）的第一部分与成分（B）混合的步骤，进一步将成分（A）的第二部分与得自在不高于80℃的温度下进行第一步，在130〜200℃的温度下进行热处理。由此，基础组合物具有良好的流动性，能够得到良好的固化物压力下的撕裂强度。

93. 发明授权

US5367001A Impression composition 失效
标题翻译：印象构成
公开(公告)号：US5367001A
公开(公告)日：1994-11-22
申请号：US48577
申请日：1993-04-09
申请人： Kunio Itoh , Yoshio Inoue , Hironao Fujiki , Masachika Yoshino
发明人： Kunio Itoh , Yoshio Inoue , Hironao Fujiki , Masachika Yoshino
IPC分类号： A61K6/10 , C08G77/46 , C08L71/02 , C08L83/05 , C08L83/12 , C08K5/15
CPC分类号： A61K6/10 , C08L83/12
摘要： A impression composition comprising:(A) a polyether polymer having at least two alkenyl groups in its molecule,(B) a polyorganohydrogensiloxane having at least three silicon-bonded hydrogen atoms in its molecule,(C) a platinum catalyst,(D) an inorganic filler, and(E) an antioxidant.This composition of has hydrophilic nature and a small cure shrinkage; hence it enables precise impression in a wet environment like in a mouth.
摘要翻译：一种印模组合物，包括：（A）在其分子中具有至少两个烯基的聚醚聚合物，（B）在其分子中具有至少三个与硅键合的氢原子的聚有机氢硅氧烷，（C）铂催化剂，（D）无机填料，（E）抗氧化剂。该组合物具有亲水性，固化收缩小; 因此它可以在潮湿的环境中像嘴里一样精确地印象。

94. 发明授权

US5236997A Curable fluorosilicone rubber composition 失效
标题翻译：可固化氟硅橡胶组合物
公开(公告)号：US5236997A
公开(公告)日：1993-08-17
申请号：US836589
申请日：1992-02-18
申请人： Hironao Fujiki
发明人： Hironao Fujiki
IPC分类号： C08K3/00 , C08K5/5419 , C08L83/04 , C08L83/08 , C08L83/12 , C08L83/14
CPC分类号： C08L83/08 , C08L83/14
摘要： A room temperature-curable fluorosilicone rubber composition is disclosed, which is capable of giving a cured silicone rubber having excellent resistance against organic solvents and petroleums withhigh curability despite the high fluorine content which may cause steric hindfrance against the curing reaction due to the bulkiness of the fluorine-containing substituent groups. Different from conventional fluorine-containing diorganopolysiloxanes, in which the fluorine-containing substituent groups are bonded to the silicon atoms at random positions throughout the molecule, several silicon atoms from each of the molecular chain ends of the diorganopolysiloxane as the principal ingredient of the inventive composition are free from fluorine-containing substituent groups so that the crosslinking reaction with the silanolic hydroxy groups bonded to the terminal silicon atoms is not disturbed by the fluorine-containing groups in the vicinity of the terminal silanol groups.
摘要翻译：公开了一种室温可固化的氟硅橡胶组合物，其能够提供具有优异的耐有机溶剂和具有高固化性的石油的固化的硅橡胶，尽管氟含量高，这可能导致固化反应的空间阻碍，这是由于含氟取代基。与常规含氟二有机聚硅氧烷不同，其中含氟取代基在整个分子的随机位置键合到硅原子上，作为本发明组合物的主要成分的二有机聚硅氧烷的每个分子链末端的几个硅原子不含氟取代基，因此与末端硅原子键合的硅烷醇羟基的交联反应不会受到末端硅烷醇基附近的含氟基团的干扰。

95. 发明授权

US4988758A Fluorosilicone rubber composition 失效
标题翻译：氟硅橡胶组合物
公开(公告)号：US4988758A
公开(公告)日：1991-01-29
申请号：US222212
申请日：1988-07-21
申请人： Takeshi Fukuda , Motoo Fukushima , Kunio Itoh , Hironao Fujiki
发明人： Takeshi Fukuda , Motoo Fukushima , Kunio Itoh , Hironao Fujiki
IPC分类号： C08G77/22 , C08G77/24 , C08K3/36 , C08K5/14 , C08L83/04 , C08L83/08
CPC分类号： C08K5/14 , C08G77/24 , C08L83/08
摘要： The fluorine-substituted organopolysiloxane as the principal ingredient of the inventive silicone rubber composition has vinyl groups to serve as the cross-linking points at the molecular chain terminals while at least the penultimate siloxane unit or the silicon atom adjacent to the terminal silicon atom has no fluorine-substituted hydrocarbon group bonded to the silicon atom. Being freed from the steric hindrance due to the bulky fluorine-substituted hydrocarbon group bonded to the adjacent silicon atom, the vinyl group bonded to the terminal silicon atom can pertain to the cross-linking reaction much easier than otherwise so that the silicone rubber composition of the invention containing an organic peroxide or a combination of an organohydrogenpolysiloxane and a platinum catalyst as a curing agent can be rapidly cured to give a cured silicone rubber article having excellent resistance against oils and organic solvents as well as mechanical properties.
摘要翻译：作为本发明的硅橡胶组合物的主要成分的氟取代的有机聚硅氧烷具有乙烯基作为分子链末端的交联点，而至少倒数第二硅氧烷单元或与末端硅原子相邻的硅原子没有与硅原子键合的氟取代烃基。由于与相邻的硅原子键合的大体积的氟取代烃基而消除空间位阻，与末端硅原子键合的乙烯基可以与其它方式相容容易，因此硅橡胶组合物包含有机过氧化物或作为固化剂的有机氢聚硅氧烷和铂催化剂的组合的本发明可以快速固化，得到具有优异的耐油性和有机溶剂性的固化的硅橡胶制品以及机械性能。

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