-
公开(公告)号：US6001917A
公开(公告)日：1999-12-14
申请号：US109967
申请日：1998-06-27
摘要： In a first step, basic components including (A) 100 parts by weight of an organopolysiloxane gum, (B) 5-100 parts by weight of a reinforcing silica filler, and (C) 0.1-30 parts by weight of a processing aid are fed batchwise to a closed mixer for mixing them at a temperature of room temperature to 150.degree. C. In a second step, the mixture is fed into a kneader/mixer for heat treating at a temperature of 150-250.degree. C. The first step achieves quick dispersion and cooperates with the second step to form a heat-curable silicone rubber compound in an efficient manner.
摘要翻译： 在第一步中，包括（A）100重量份有机聚硅氧烷胶，（B）5-100重量份增强二氧化硅填料和（C）0.1-30重量份加工助剂的基础组分是 在室温至150℃的温度下分批进料至密闭混合器中混合。在第二步中，将混合物进料到捏合机/混合器中，在150-250℃的温度下进行热处理。第一步 实现快速分散，并与第二步配合，以有效的方式形成可热固化的硅橡胶。
-
公开(公告)号：US5597853A
公开(公告)日：1997-01-28
申请号：US337002
申请日：1994-11-07
申请人： Kunio Itoh , Toshio Shinohara , Masaharu Takahashi
发明人： Kunio Itoh , Toshio Shinohara , Masaharu Takahashi
CPC分类号： C08K9/06
摘要： A silicone rubber composition comprising an organopolysiloxane and a reinforcing silica filler can be improved in crepe hardening and shelf stability by blending a specific compound as a wetter.
摘要翻译： 包含有机聚硅氧烷和增强二氧化硅填料的硅橡胶组合物可以通过混合特定化合物作为润湿剂而改善起皱硬化和储存稳定性。
-
公开(公告)号：US5550185A
公开(公告)日：1996-08-27
申请号：US240530
申请日：1994-05-10
摘要： The silicone rubber composition of the present invention comprises (A) an organopolysiloxane obtained by mixing and heating an organopolysiloxane having a silanol group at both ends of the molecular chain and a silane or a siloxane having two hydrolyzable groups in the molecule, (B) a finely divided silica, and (C) a curing agent. The composition, wherein the content of low-molecule siloxanes is remarkably constrained, is quite useful in the application wherein low-molecular siloxanes are obnoxious, for example, in the application of electrical contacts and parts used adjacent thereto, roll materials of copying machines, gaskets for construction, etc.
摘要翻译： 本发明的硅橡胶组合物包含（A）通过混合并加热分子链两端具有硅烷醇基的有机聚硅氧烷和分子中具有两个可水解基团的硅烷或硅氧烷获得的有机聚硅氧烷，（B） 细分二氧化硅，（C）固化剂。 其中低分子硅氧烷的含量被显着约束的组合物在其中低分子硅氧烷是恶劣的应用中是非常有用的，例如在应用电触点和与其相邻使用的部件，复印机的卷材， 建筑垫片等
-
公开(公告)号：US5498660A
公开(公告)日：1996-03-12
申请号：US360094
申请日：1994-12-20
申请人： Masaharu Takahashi , Manabu Narumi
发明人： Masaharu Takahashi , Manabu Narumi
IPC分类号： C08L83/05 , C08K5/5419 , C08L83/04 , C08L83/07 , C08K5/04
CPC分类号： C08K5/5419 , C08L83/04 , C08G77/12 , C08G77/20
摘要： To a silicone rubber composition including (A) a diorganopolysiloxane having an aliphatic unsaturated hydrocarbon group, (B) an organohydrogenpolysiloxane having at least two SiH groups in a molecule, and (C) a platinum catalyst, is added (D) an organic silicon compound of the following general formula (2): ##STR1## wherein R.sup.2, R.sup.5, and R.sup.6 are independently selected from monovalent hydrocarbon groups free of an aliphatic unsaturated bond, R.sup.3 is a monovalent hydrocarbon group, R.sup.4 is hydrogen or methyl, and n is an integer of 0 to 3. The composition has a long pot life after addition of curing components (B) and (C) and is extrusion moldable into bubble-free transparent parts. The composition is prepared by mixing component (A) with components (B) and (C) while adding component (D) thereto.
摘要翻译： 对于包含（A）具有脂族不饱和烃基的二有机聚硅氧烷，（B）分子中具有至少两个SiH基的有机氢聚硅氧烷和（C）铂催化剂）的硅橡胶组合物，（D）有机硅化合物 （2）其中R 2，R 5和R 6独立地选自不含脂族不饱和键的一价烃基，R 3是一价烃基，R 4是氢或甲基，和 n为0〜3的整数。该组合物在添加固化成分（B）和（C）后具有长的适用期，并且可挤出成型为无气泡透明部分。 通过将组分（A）与组分（B）和（C）混合同时向其中加入组分（D）来制备组合物。
-
公开(公告)号：US5488125A
公开(公告)日：1996-01-30
申请号：US392116
申请日：1995-02-22
申请人： Naoki Omura , Minoru Igarashi , Yoshio Inoue , Masaharu Takahashi
发明人： Naoki Omura , Minoru Igarashi , Yoshio Inoue , Masaharu Takahashi
CPC分类号： C07F7/0836 , C07F7/0874 , C07F7/0885
摘要： A manufacturing method of organosilanes having silanol groups which is characterized by mixing organoalkoxy silanes, having at most a 20 ppm content of chlorine, expressed by the general chemical formula (1) below:Si(R.sup.1).sub.m (R.sup.2).sub.n (OR.sup.3).sub.k (1)wherein each of R.sup.1 and R.sup.2 is either a substituted or unsubstituted monovalent hydrocarbon group; R.sup.3 is an alkyl group of 1 to 4 carbon atoms; subscripts m and n are 0, 1, 2, or 3; k is either 1 or 2; and the sum of subscripts m+n+k=4, with ion-exchanged water having an electroconductivity of at least 10.sup.10 M.OMEGA., then further adding a macro-porous cation-exchange resin with a pore volume measured by the mercury injection method of at least 0.1 ml/g to the said mixture, followed by stirring of the mixture and removal of the cation-exchange resin. According to the present invention, organosilanes having silanol groups which are useful as a dispersing agent in silicone rubbers may be obtained by a simple process from organoalkoxy silanes, such as relatively inexpensive dimethoxy dimethyl silane.
摘要翻译： 具有硅烷醇基的有机硅烷的制造方法，其特征在于混合由通式（1）表示的含有至多20ppm含量的有机烷氧基硅烷：Si（R 1）m（R 2）n（OR 3）k （1）其中R1和R2各自为取代或未取代的单价烃基; R3是1-4个碳原子的烷基; 下标m和n分别为0,1,2或3; k是1或2; 和下标m + n + k = 4的总和，其中离子交换水的电导率至少为1010M欧米茄，然后进一步加入具有通过汞注入法测量的孔体积的大孔阳离子交换树脂 至少0.1ml / g，然后搅拌混合物并除去阳离子交换树脂。 根据本发明，可以通过有机烷氧基硅烷如相对廉价的二甲氧基二甲基硅烷的简单方法获得在硅橡胶中用作分散剂的具有硅烷醇基的有机硅烷。
-
56.发明授权
公开(公告)号：US5482978A
公开(公告)日：1996-01-09
申请号：US429876
申请日：1995-04-27
IPC分类号： C08J9/06 , B29D99/00 , C08J9/00 , C08J9/10 , C08K3/04 , C08K5/14 , C08L83/04 , C08L83/05 , C08L83/07 , C07C303/00 , C07C307/00 , C08J9/02
CPC分类号： C08J9/0023 , C08J9/0066 , C08J9/10 , C08L83/04 , C08G77/12 , C08G77/20 , C08J2383/04
摘要： An expandable conductive-silicone rubber composition includes (A) an organopolysiloxane having at least two alkenyl groups, (B) conductive carbon black, (C) an organic peroxide of the formula: ##STR1## wherein R.sup.2 and R.sup.3 each are a monovalent C.sub.3 -C.sub.10 hydrocarbon group or a group of --SiR.sup.4.sub.3 wherein R.sup.4 is methyl, ethyl or phenyl, X is --(CH.sub.2).sub.n --, --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 -- or --(C.sub.2 H.sub.4 O).sub.m --C.sub.2 H.sub.4 -- wherein n=2 to 8 and m=1 to 4, (D) an organohydrogenpolysiloxane, (E) a platinum catalyst, and (F) a blowing agent. It is fully stable during shelf storage, has a long pot life, and is rapidly expandable and curable through hot air vulcanization into conductive silicone rubber foam having high conductivity and improved fatigue endurance of sponge cells when the foam is used as a sponge roll.
摘要翻译： 可膨胀的导电硅橡胶组合物包括（A）具有至少两个烯基的有机聚硅氧烷，（B）导电炭黑，（C）下式的有机过氧化物：其中R2和R3各自为 乙酰基或苯基，X是 - （CH 2）n - ， - CH 2 -C（CH 3）2 -CH 2 - 或 - （C 2 H 4 O）m -C 2 H 4 - 其中n = 2至8和m = 1至4，（D）有机氢聚硅氧烷，（E）铂催化剂和（F）发泡剂。 它在搁板储存期间是完全稳定的，具有长的适用期，并且当泡沫用作海绵辊时，通过热空气硫化快速膨胀和固化成具有高导电性和改善的海绵细胞耐疲劳性的导电硅橡胶泡沫。
-
公开(公告)号：US5391593A
公开(公告)日：1995-02-21
申请号：US998032
申请日：1992-12-29
摘要： A silicone rubber composition comprising (A) an organopolysiloxane, (B) an organic peroxide and (C) carbon black cures under anaerobic conditions into silicone rubber having improved physical properties. A composition further comprising (D) an organopolysiloxane copolymer consisting essentially of M and Q units in a molar M/Q ratio of 6/10 to 9/10 forms an anaerobic adhesive composition which is a useful sealant.
摘要翻译： 一种硅橡胶组合物，其包含（A）有机聚硅氧烷，（B）有机过氧化物和（C）炭黑在厌氧条件下固化成具有改善的物理性能的硅橡胶。 进一步包含（D）主要由M / Q比为6/10至9/10的M和Q单元组成的有机聚硅氧烷共聚物形成厌氧粘合剂组合物，其是有用的密封剂。
-
公开(公告)号：US5306766A
公开(公告)日：1994-04-26
申请号：US939481
申请日：1992-09-04
摘要： A silicone rubber composition comprising (A) an alkenyl-containing organopolysiloxane, (B) a polycyclic aromatic compound having at least two phenyl groups, and (C) finely divided silica is easy to process and cures to silicone rubber having low hardness while retaining good physical properties.
摘要翻译： 包含（A）含烯基的有机聚硅氧烷，（B）具有至少两个苯基的多环芳族化合物和（C）细碎二氧化硅的硅橡胶组合物易于加工并固化成低硬度的硅橡胶，同时保持良好 物理性质。
-
公开(公告)号：US5294373A
公开(公告)日：1994-03-15
申请号：US812285
申请日：1991-12-23
摘要： A conductive silicone rubber composition comprises a conductive silicone rubber composition comprising:(a) an organopolysiloxane of the following general formula (1): ##EQU1## wherein R.sup.1 is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 10 carbon atoms and "a" is a positive number of 1.90 to 2.05,(b) conductive carbon black, and(c) an organic peroxide of the following general formula (2): ##STR1## wherein X is --CH.sub.2).sub.n in which "n" is an integer of 2 to 8 or ##STR2## and R.sup.2 and R.sup.3 are independently selected from monovalent hydrocarbon groups having 3 to 10 carbon atoms and --SiR.sub.3.sup.4 in which R.sup.4 is a methyl, ethyl or phenyl group.
摘要翻译： 导电硅橡胶组合物包含导电硅橡胶组合物，其包含：（a）下列通式（1）的有机聚硅氧烷：（*化学结构*）（1）其中R1是未取代或取代的具有1至10个 碳原子，“a”为1.90〜2.05的正数，（b）导电性炭黑，（c）下述通式（2）所示的有机过氧化物：（*化学结构*）（2）其中，X为 -CH 2）n，其中“n”为2至8的整数或（*化学结构*），并且R 2和R 3独立地选自具有3至10个碳原子的一价烃基和-SiR 34，其中R 4是甲基，乙基 或苯基。
-
公开(公告)号：US5240765A
公开(公告)日：1993-08-31
申请号：US910897
申请日：1992-07-10
申请人： Masaharu Takahashi , Kazuma Momii
发明人： Masaharu Takahashi , Kazuma Momii
IPC分类号： C08L83/04 , C08J3/24 , C08J5/18 , C08K5/23 , C09D183/04
CPC分类号： C08J5/18 , C08J3/24 , C08J2383/04 , Y10T428/31663
摘要： A silicone rubber composition comprising an organopolysiloxane and a curing agent is improved by adding a foaming agent in an amount of 0.1 to 10 parts by weight per 100 parts by weight of the organopolysiloxane. The composition is heat curable into silicone rubber films or coatings which are substantially unfoamed and tack-free on a surface.
-
-
-
-
-
-
-
-
-
搜索结果
89 条记录 (耗时 0.033 秒)
