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：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.

公开(公告)号：US4678688A

公开(公告)日：1987-07-07

申请号：US834906

申请日：1986-02-28

申请人： Kunio Itoh ,  Shohei Kozakai ,  Yoshinori Hida ,  Hiroshige Okinoshima ,  Fumio Okada ,  Toshio Oba ,  Hisashi Shimizu ,  Yuji Hinoto ,  Hiroshi Yoshioka

发明人： Kunio Itoh ,  Shohei Kozakai ,  Yoshinori Hida ,  Hiroshige Okinoshima ,  Fumio Okada ,  Toshio Oba ,  Hisashi Shimizu ,  Yuji Hinoto ,  Hiroshi Yoshioka

IPC分类号： C08G77/54 ,  C09D183/14 ,  B05D3/02

CPC分类号： C08J7/047 ,  C08G77/54 ,  C09D183/14 ,  C08J2483/00

摘要： The inventive method for forming a cured film on a substrate surface comprises coating the surface with a room temperature curable organosiloxazane polymer comprising, in a molecule, (a) at least one organosiloxane unit represented by the unit formula (a) at least one organosiloxane unit represented by the unit formulaR.sup.1.sub.a SiO.sub.(4-a)/2,and (b) at least one organosilazane unit represented by the unit formulaR.sup.2.sub.b Si(NR.sup.3).sub.(4-b)/2,in which R.sup.1, R.sup.2 and R.sup.3 are each a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group, not all of them being simultaneously hydrogen atoms, and the subscripts a and b are each a positive integer of 1, 2 or 3 with the proviso that a and b cannot be simultaneously equal to 3, in a molecule and subjecting the coating film to exposure to a moisture-containing atmosphere. The method is useful for forming a surface-protecting film or for imparting surface releasability.

摘要翻译： 用于在基材表面上形成固化膜的本发明方法包括用室温可固化的有机硅氮烷聚合物涂覆表面，所述室温可固化的有机硅氮烷聚合物在分子中包含（a）至少一个由式（a）表示的有机硅氧烷单元，至少一个有机硅氧烷单元 由式R1aSiO（4-a）/ 2表示的至少一种有机硅氮烷单元，（b）由单元式R2bSi（NR3）（4-b）/ 2表示的至少一种有机硅氮烷单元，其中R1，R2和R3各自为 氢原子或取代或未取代的一价烃基，并不全部同时为氢原子，下标a和b各自为正整数1,2或3，条件是a和b不能同时为3 在分子中并使涂膜暴露于含水气氛。 该方法可用于形成表面保护膜或赋予表面剥离性。

公开(公告)号：US4977200A

公开(公告)日：1990-12-11

申请号：US330576

申请日：1989-03-30

申请人： Kunio Itoh ,  Takeshi Fukuda ,  Tsutomu Nakamura

发明人： Kunio Itoh ,  Takeshi Fukuda ,  Tsutomu Nakamura

IPC分类号： A45D33/34 ,  C08J9/04 ,  C08J9/06 ,  C08K3/34 ,  C08K3/36 ,  C08K5/01 ,  C08K7/00 ,  C08K13/04 ,  C08L23/16 ,  C08L83/04 ,  C08L83/07 ,  C08L87/00

CPC分类号： C08J9/06 ,  C08K3/36 ,  C08L23/16 ,  C08J2323/16 ,  C08L2312/00

摘要： A rubber composition, which forms a vulcanizate having excellent surface properties such as pleasant feeling of touch and slipperiness or lubricity, comprises, in addition to conventional ingredients such as an ethylene-propylene copolymer, organopolysiloxane, reinforcing silica filler, process oil and curing agent, a powder of spherical particles, such as a poly(methyl silsesquioxane) powder, in the form having a particle diameter of 0.1 .mu.m to 50 .mu.m in a limited amount. The rubber composition forms a spongy rubber vulcanizate when vulcanized in the presence of a blowing agent which, by virtue of excellent surface properties, is useful as powder puffs for make-up.

摘要翻译： 形成具有良好的触感，滑溜感或润滑性等优异表面性能的橡胶组合物除了常规成分如乙烯 - 丙烯共聚物，有机聚硅氧烷，增强二氧化硅填料，加工油和固化剂之外， 有限量的粒径为0.1μm〜50μm的球状颗粒粉末，例如聚（甲基倍半硅氧烷）粉末。 在发泡剂存在下硫化时，橡胶组合物形成海绵状橡胶硫化橡胶，由于具有优异的表面性能，可用作化妆粉末泡沫。

公开(公告)号：US4022747A

公开(公告)日：1977-05-10

申请号：US626350

申请日：1975-10-28

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

CPC分类号： C08L83/04 ,  C08G77/045 ,  C08G77/18 ,  C08G77/20 ,  C08G77/44 ,  C08G77/70

摘要： Silicone rubber compositions comprising (a) diorganopolysiloxane with a viscosity at least 1,000,000 centistokes at 25.degree. C, of which from 8 to 80 mole % of the organic groups are monovalent hydrocarbon group having from 2 to 4 carbon atoms, (b) an organopolysiloxane with a viscosity at most 200 centistokes, (c) a silica filler, and (d) an organic peroxide. Their vulcanized form, i.e., silicone rubber elastomers exhibit a high degree of elasticity in an extremely low temperature range, and have superior properties with respect to heat-resistance, oil-resistance, electrical characteristics and compression set.

摘要翻译： 包含（a）在25℃下具有至少1,000,000厘沲粘度的二有机聚硅氧烷的硅橡胶组合物，其中8至80摩尔％的有机基团是具有2至4个碳原子的单价烃基，（b）有机聚硅氧烷， 粘度至多200厘沲，（c）二氧化硅填料，（d）有机过氧化物。 它们的硫化形式，即硅橡胶弹性体在极低温度范围内表现出高度的弹性，并且在耐热性，耐油性，电特性和压缩永久变形方面具有优异的性能。

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：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：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。