公开(公告)号：US4150010A

公开(公告)日：1979-04-17

申请号：US877822

申请日：1978-02-15

申请人： Kunio Itoh ,  Takeshi Fukuda ,  Toshimichi Oshima

发明人： Kunio Itoh ,  Takeshi Fukuda ,  Toshimichi Oshima

IPC分类号： C08L23/00 ,  C08J3/24 ,  C08L7/00 ,  C08L21/00 ,  C08L23/16 ,  C08L23/18 ,  C08L83/00 ,  C08L83/04 ,  C08L83/08 ,  C08L101/00 ,  C08G77/04

CPC分类号： C08L23/16 ,  C08L83/08 ,  C08L2312/00

摘要： The invention provides a novel elastomer composition capable of giving vulcanized rubber products with superior solvent resistance, oil resistance, heat resistance and other properties. The composition is formulated with a polymer blend of an ethylene-propylene copolymeric elastomer and a specific organopolysiloxane having certain amount of mercapto-substituted organic groups bonded to the silicon atoms as the base component admixed with a filler and a crosslinking agent or a vulcanizing agent.

摘要翻译： 本发明提供一种新型的弹性体组合物，其能够提供具有优异的耐溶剂性，耐油性，耐热性等特性的硫化橡胶制品。 用乙烯 - 丙烯共聚物弹性体和具有一定量的巯基取代的有机基团的键合到硅原子上作为基础组分与填料和交联剂或硫化剂混合的聚合物共混物配制组合物。

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。

公开(公告)号：US4745144A

公开(公告)日：1988-05-17

申请号：US899044

申请日：1986-08-14

申请人： Kunio Itoh ,  Kiyoshi Imai ,  Takeshi Fukuda ,  Nobuyuki Uesugi

发明人： Kunio Itoh ,  Kiyoshi Imai ,  Takeshi Fukuda ,  Nobuyuki Uesugi

IPC分类号： C08L83/04 ,  C08K3/36 ,  C08K5/00 ,  C08K5/51 ,  C08K5/521 ,  C08K5/53 ,  C08K13/02 ,  C08L83/06 ,  C08L83/07

CPC分类号： C08K5/521 ,  C08K5/0091 ,  C08K5/53

摘要： The silicone rubber composition comprises, in addition to the conventional ingredients of a high-polymeric diorganopolysiloxane and a reinforcing silica filler, a specific phosphorus-containing organic compound, such as phosphinates, phosphonates and phosphates, in a limited amount. By virtue of this unique ingredient, the composition can give a cured silicone rubber product having greatly improved resistance against dynamic fatigue.

摘要翻译： 硅橡胶组合物除了高分子二有机聚硅氧烷和增强二氧化硅填料的常规成分外还包含有限量的特定含磷有机化合物，例如次膦酸酯，膦酸酯和磷酸酯。 凭借这种独特的成分，组合物可以得到具有大大提高的抗动态疲劳性能的固化的硅橡胶产品。

公开(公告)号：US4826905A

公开(公告)日：1989-05-02

申请号：US131604

申请日：1987-12-11

申请人： Kunio Itoh ,  Kiyoshi Imai ,  Takeshi Fukuda

发明人： Kunio Itoh ,  Kiyoshi Imai ,  Takeshi Fukuda

IPC分类号： C08K3/36 ,  C08K5/02 ,  C08K5/06 ,  C08K5/103 ,  C08K5/54 ,  C08L83/04

CPC分类号： C08L83/04 ,  C08K5/02 ,  C08K5/06 ,  C08K5/103 ,  C08K5/5406 ,  C08G77/16 ,  C08G77/20 ,  C08G77/24 ,  C08G77/70

摘要： A silicone rubber composition composed of a high-molecular diorganopolysiloxane, a reinforcing silica filler and an organic peroxide as a curing agent is further compounded with a fluorine-containing low-polymeric compound such as poly(chlorotrifluoroethylene) and perfluorinated polyether compound of the formula F--[--CF(CF.sub.3)--CF.sub.2 --O--].sub.v --O--CF.sub.2 --CF.sub.3, in which v is 2 to 100, as well as fluoroalkyl-substituted organopolysiloxanes. The silicone rubber composition can give a cured silicone rubber product having greatly improved resistance against dynamic fatigue as in repeated cycles of stretching and relaxation.

摘要翻译： 由高分子二有机聚硅氧烷，增强二氧化硅填料和作为固化剂的有机过氧化物组成的硅橡胶组合物进一步与含氟低聚物，如聚（氯三氟乙烯）和式F的全氟化聚醚化合物 - [ - CF（CF 3）-CF 2 -O-] v O-CF 2 -CF 3，其中v为2至100，以及氟烷基取代的有机聚硅氧烷。 硅橡胶组合物可以在重复的拉伸和松弛循环中得到具有大大提高的抗动态疲劳性能的固化硅橡胶产品。

公开(公告)号：US4714733A

公开(公告)日：1987-12-22

申请号：US34640

申请日：1987-04-06

申请人： Kunio Itoh ,  Takeshi Fukuda ,  Hiroshi Yoshioka

发明人： Kunio Itoh ,  Takeshi Fukuda ,  Hiroshi Yoshioka

IPC分类号： C08K3/34 ,  C08K3/36 ,  C08K5/54 ,  C08K5/5419 ,  C08K5/548 ,  C08K13/02 ,  C08L23/16 ,  C08L83/04 ,  C08L83/07 ,  C08L87/00 ,  C08L99/00 ,  C08L83/06 ,  C08L7/00

CPC分类号： C08K5/5406 ,  C08K3/36 ,  C08L23/16 ,  C08L2312/00

摘要： The rubber composition is formulated with (A) a combination of an ethylene-propylene copolymeric rubber and an organopolysiloxane having at least two alkenyl groups per molecule as the polymeric base, (B) a reinforcing silica filler, (C) an alkoxysilane compound and (D) a thiocarbamyl-containing organosilane compound. The rubber composition can be vulcanized with an organic sulfur compound or organic peroxide as the vulcanizing agent to give a vulcanizate having quite satisfactory mechanical properties including, in particular, greatly improved heat resistance and greatly decreased permanent compression set even without using carbon black as the reinforcing filler. The omission of carbon black in the formulation gives an advantage that the rubber may be colored in any light color.

公开(公告)号：US4287114A

公开(公告)日：1981-09-01

申请号：US91761

申请日：1979-11-06

申请人： Kunio Itoh ,  Takeshi Fukuda ,  Masaaki Matumura

发明人： Kunio Itoh ,  Takeshi Fukuda ,  Masaaki Matumura

IPC分类号： C08L83/00 ,  C08K3/36 ,  C08K5/14 ,  C08L83/04 ,  C09D183/04 ,  C09J183/00 ,  C08L83/06

CPC分类号： C09D183/04

摘要： The adhesive bonding of a silicone rubber to a metal surface can be very much improved by the use of the inventive primer composition, in particular, with respect to the heat resistance and anti-oil resistance of the adhesion. The inventive primer composition comprises (a) a substantially linear diorganopolysiloxane of gum-like consistency free from aliphatic unsaturation, (b) an organopolysiloxane with the organic group/silicon atom molar ratio of 1.9 to 2.3 and having a limited amount of vinyl groups directly bonded to the silicon atoms and a viscosity of 5 to 10,000 centistokes at 25.degree. C., (c) an organopolysiloxane resin with the molar ratio of organic groups/silicon atoms of 0.5 to 1.7, (d) an organosilane compound such as vinyl trimethoxysilane or vinyl tris(2-methoxyethoxy) silane, (e) a finely divided silica filler, (f) an organic peroxide and (g) a curing agent for silicone resins, all in limited weight proportions.

摘要翻译： 通过使用本发明的底漆组合物，特别是关于粘合性的耐热性和抗油性，可以使硅橡胶与金属表面的粘合粘合力得到非常大的改善。 本发明的底漆组合物包含（a）不含脂肪族不饱和度的胶状稠度的基本上线性的二有机聚硅氧烷，（b）有机基/硅原子摩尔比为1.9至2.3的有机聚硅氧烷，并且具有有限量的直接键合的乙烯基 在25℃下粘度为5〜10000厘沲，（c）有机基团/硅原子摩尔比为0.5〜1.7的有机聚硅氧烷树脂，（d）有机硅烷化合物如乙烯基三甲氧基硅烷或 乙烯基三（2-甲氧基乙氧基）硅烷，（e）细碎二氧化硅填料，（f）有机过氧化物和（g）有机硅树脂的固化剂，均为有限重量比。

公开(公告)号：US4045390A

公开(公告)日：1977-08-30

申请号：US643795

申请日：1975-12-23

申请人： Kunio Itoh ,  Takeshi Fukuda

发明人： Kunio Itoh ,  Takeshi Fukuda

IPC分类号： C08L83/00 ,  C08L83/07 ,  C08L83/10 ,  C08L91/00

CPC分类号： C08L83/10 ,  Y10S528/901

摘要： The organopolysiloxane compositions comprising (a) a linear diorganopolysiloxane having a block structure composed of alternately linked two kinds of blocks of dimethylsiloxane units on one hand and of dimethylsiloxane units and methylvinylsiloxane units on the other hand, (b) a silica filler, (c) a methylhydrogenpolysiloxane as a crosslinking agent, and (d) a platinum catalyst for accelerating crosslinking by addition reaction. Cured silicone rubber elastomers obtained from the composition have very excellent mechanical properties, especially tear strength.

摘要翻译： 有机聚硅氧烷组合物包含（a）一方面由二甲基硅氧烷单元交替连接的两种嵌段和二甲基硅氧烷单元和甲基乙烯基硅氧烷单元组成的嵌段结构的线性二有机聚硅氧烷，（b）二氧化硅填料，（c） 作为交联剂的甲基氢聚硅氧烷，（d）通过加成反应加速交联的铂催化剂。 由组合物获得的固化硅橡胶弹性体具有非常优异的机械性能，特别是撕裂强度。

公开(公告)号：US4164491A

公开(公告)日：1979-08-14

申请号：US871849

申请日：1978-01-24

申请人： Kunio Itoh ,  Takeshi Fukuda

发明人： Kunio Itoh ,  Takeshi Fukuda

IPC分类号： C08L83/00 ,  C08G18/00 ,  C08L75/00 ,  C08L75/04 ,  C08L83/04

CPC分类号： C08L75/04 ,  C08L83/04 ,  C08G77/20 ,  C08G77/24 ,  C08G77/70

摘要： A novel thermally curable silicone rubber composition which is useful for the preparation of silicone rubber elastomers comprises diorganopoly-siloxane gum, a polyurethane elastomer having a softening point of not lower than 100.degree. C., a reinforcing filler, and an organic peroxide. The silicone rubber elastomers cured have an excellent resistance to mineral oils and organic solvents as well as other properties that are inherent in conventional silicone rubbers.

摘要翻译： 可用于制备硅橡胶弹性体的新型可热固化硅橡胶组合物包括二有机聚硅氧烷胶，软化点不低于100℃的聚氨酯弹性体，增强填料和有机过氧化物。 固化的硅橡胶弹性体具有优异的耐矿物油和有机溶剂的性能以及常规硅橡胶固有的其它性能。

公开(公告)号：US4151156A

公开(公告)日：1979-04-24

申请号：US925854

申请日：1978-07-18

申请人： Kunio Itoh ,  Takeshi Fukuda

发明人： Kunio Itoh ,  Takeshi Fukuda

IPC分类号： C08K3/00 ,  C08K3/06 ,  C08K3/18 ,  C08K3/22 ,  C08L83/08

CPC分类号： C08K3/18 ,  C08K3/0033 ,  C08K3/06 ,  C08K3/20 ,  C08K3/22

摘要： Mercapto group-containing silicone rubber compositions essentially consisting of a mercapto group-containing organopolysiloxane having a viscosity exceeding 100,000 cSt and represented by the average unit formulaR.sub.a SiO.sub.(4-a/2)in which R is a monovalent hydrocarbon group substantially free from aliphatic unsaturation, at least two of the R groups in a molecule being mercaptoalkyl groups and a is between 1.98 and 2.05, a certain filler and sulfur, a metal oxide or a metal peroxide as a curing agent. Products from the composition have excellent chemical and mechanical properties and can be bonded to an organic synthetic rubber or natural rubber as well as metals in completely cured state.

摘要翻译： 基于含巯基的硅橡胶组合物，其主要由粘度超过100,000cSt的含巯基的有机聚硅氧烷组成，并由平均单元式RaSiO（4-a / 2）IN表示，其中R是基本上不含脂族不饱和度的单价烃基 分子中的至少两个R基团是巯基烷基，a在1.98和2.05之间，某些填料和硫，作为固化剂的金属氧化物或金属过氧化物。 该组合物的产品具有优异的化学和机械性能，并且可以结合到有机合成橡胶或天然橡胶以及完全固化状态的金属。

公开(公告)号：US3950299A

公开(公告)日：1976-04-13

申请号：US563978

申请日：1975-04-01

申请人： Kunio Itoh ,  Naoyoshi Kuga ,  Takeshi Fukuda

发明人： Kunio Itoh ,  Naoyoshi Kuga ,  Takeshi Fukuda

IPC分类号： C08L83/00 ,  C08L83/04 ,  C08L83/10

CPC分类号： C08L83/10

摘要： Silicone rubber compositions comprising a diorganopolysiloxane having localized vinyl group distribution, a silica filler with large specific surface area and a curing agent, e.g., an organic peroxide, the diorganopolysiloxane being prepared by the block-copolymerization of a hydroxy-endblocked diorganopolysiloxane without unsaturation and a chlorine-endblocked vinyl-containing diorganopolysiloxane by the dehydrochlorination-condensation. Cured elastomers from silicone rubber compositions have very much improved tear strength with the other properties being as good as those of the conventional silicone rubber elastomers.