专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US5290878A Butadiene copolymer and process for preparing same 失效
标题翻译：丁二烯共聚物及其制备方法
公开(公告)号：US5290878A
公开(公告)日：1994-03-01
申请号：US72488
申请日：1993-06-07
申请人： Keisaku Yamamoto , Kizuku Wakatsuki , Mitsuji Tsuji , Yuichi Saito
发明人： Keisaku Yamamoto , Kizuku Wakatsuki , Mitsuji Tsuji , Yuichi Saito
IPC分类号： C08C19/42 , C08F8/00 , C08F36/00 , C08F36/06 , C08F236/06 , C08F236/10 , C08K5/00 , C08L9/00 , C08F8/42
CPC分类号： C08F236/10
摘要： An elastomeric butadiene copolymer prepared by a process which comprises copolymerizing butadiene, a polyvinyl aromatic compound and optionally styrene in a hydrocarbon solvent in the presence of an organolithium polymerization initiator and subjecting the resulting copolymer having lithium at the polymer end or ends to a coupling reaction with a trifunctional or tetrafunctional coupling agent, said butadiene copolymer satisfying the following conditions: (a) the content of styrene is at most 50% by weight, (b) the content of vinyl bonds in the butadiene portion is from 10 to 90% by weight, (c) the molecular weight distribution curve obtained by a high performance liquid chromatography has at least three peaks, and 5 to 60% by weight of all the polymer chains have a molecular weight which is at least 5 times the molecular weight in terms of standard polystyrene corresponding to the peak appearing on the lowest molecular weight side of the high performance liquid chromatogram, and (d) the Mooney viscosity (ML.sub.1+4, 100.degree. C.) is from 30 to 200. The butadiene copolymer has an improved processability with excellent resilience, wet grip property, abrasion resistance and mechanical properties, and is suitable for tire use.
摘要翻译：一种弹性体丁二烯共聚物，该方法包括在有机锂聚合引发剂存在下，使丁二烯，聚乙烯基芳族化合物和任选的苯乙烯在烃溶剂中共聚，并将所得到的聚合物末端或末端的锂共聚物与所述丁二烯共聚物满足以下条件：（a）苯乙烯含量至多为50重量％，（b）丁二烯部分中的乙烯基键含量为10〜90重量％，（c）通过高效液相色谱获得的分子量分布曲线具有至少三个峰，并且所有聚合物链的5至60重量％的分子量的分子量至少为分子量的5倍对应于在高效液相色谱的最低分子量侧出现的峰的标准聚苯乙烯，和（d）t 门尼粘度（ML1 + 4,100℃）为30〜200。丁二烯共聚物具有优异的回弹性，湿抓地性，耐磨性和机械性能的加工性，适用于轮胎使用。

22. 发明授权

US5268425A Thermoplastic resin composition 失效
标题翻译：热塑性树脂组合物
公开(公告)号：US5268425A
公开(公告)日：1993-12-07
申请号：US890221
申请日：1992-05-29
申请人： Motonobu Furuta , Kazuki Wakamatsu , Takashi Maruyama , Mitsuji Tsuji
发明人： Motonobu Furuta , Kazuki Wakamatsu , Takashi Maruyama , Mitsuji Tsuji
IPC分类号： C08L23/12 , C08L51/04 , C08L51/06 , C08L61/06 , C08L63/00 , C08L67/00 , C08L69/00 , C08L71/12 , C08L77/00 , C08L79/08 , C08L81/02 , C08L83/04
CPC分类号： C08L51/06 , C08L23/12 , C08L51/04 , C08L71/123 , C08L61/06 , C08L63/00 , C08L67/00 , C08L69/00 , C08L77/00 , C08L79/08 , C08L81/02 , C08L83/04 , Y10S525/905
摘要： Disclosed are thermoplastic resin compositions, comprising:(a) a polyphenylene ether resin or a resin composition containing a poplyphenylene ether,(b) a modified propylene polymer, or a propylene based resin composition containing the modified propylene polymer and/or a propylene polymer, and(c) optionally, a rubbery substance,wherein the proportion of the component (a) to the sum of the components (a) and (b) is 1 to 90% by weight, and that of the component (b) to the sum of the components (a) and (b) is 99 to 10% by weight, and when the component (c) is present, the proportion of the component (c) to the sum of the components (a) and (b) is 1 to 50 parts by weight per 100 parts by weight of (a) plus (b).
摘要翻译：公开了热塑性树脂组合物，其包含：（a）聚苯醚树脂或含有苯撑醚的树脂组合物，（b）改性丙烯聚合物或含有改性丙烯聚合物和/或丙烯聚合物的丙烯类树脂组合物，和（c）任选的橡胶状物质，其中成分（a）与成分（a）和（b）之和的比例为1〜90重量％，成分（b）相对于组分（a）和（b）的总和为99至10重量％，当存在组分（c）时，组分（c）与组分（a）和（b）之和的比例相对于（a）加（b）每100重量份为1〜50重量份。

23. 发明授权

US5182151A Thermoplastic resin composition 失效
公开(公告)号：US5182151A
公开(公告)日：1993-01-26
申请号：US545827
申请日：1990-06-29
申请人： Motonobu Furuta , Mitsuji Tsuji
发明人： Motonobu Furuta , Mitsuji Tsuji
IPC分类号： C08L51/06 , C08L59/00 , C08L61/06 , C08L63/00 , C08L67/00 , C08L69/00 , C08L71/12 , C08L77/00 , C08L81/02 , C08L81/06 , C08L83/00
CPC分类号： C08L51/06 , C08L71/126 , C08L59/00 , C08L61/06 , C08L63/00 , C08L67/00 , C08L69/00 , C08L77/00 , C08L81/02 , C08L81/06 , C08L83/00 , Y10S525/905 , Y10T428/1397
摘要： A thermoplastic resin composition is disclosed which comprises(a) a modified polyphenylene ether or a composition containing it, and(b) (i) a modified propylene polymer comprising propylene polymer which is graft-copolymerized with a styrene based monomer or with a mixture of a styrene based monomer and a monomer copolymerizable therewith, or (ii) a composition containing the modified propylene polymer in (b)-(i) and propylene polymer. The resin composition may contain (c) a rubber-like substance containing at least one rubber-like substance having a polar group and/or (d) a melt flow characteristics improving agent.

24. 发明授权

US5037891A Modified ethylene-.alpha.-olefin copolymer rubber and a process for producing the same 失效
标题翻译：改性乙烯-α-烯烃共聚橡胶及其制备方法
公开(公告)号：US5037891A
公开(公告)日：1991-08-06
申请号：US353756
申请日：1989-05-18
申请人： Hiroyoshi Takao , Akio Imai , Mitsuji Tsuji
发明人： Hiroyoshi Takao , Akio Imai , Mitsuji Tsuji
IPC分类号： C08F255/04 , C08F255/02 , C08F255/06
CPC分类号： C08F255/02
摘要： A modified copolymer rubber obtained by kneading at 200.degree.-280.degree. C.(A) at least one copolymer rubber material selected from the group consisting of an ethylene-.alpha.-olefin copolymer rubber having a number-average molecular weight of 10,000-100,000 and an ethylene content of 15-85% by weight and an ethylene-.alpha.-olefin-nonconjugated diene copolymer rubber having a number-average molecular weight of 10,000-100,000, an ethylene content of 15-85% by weight and a nonconjugated diene content of 3.0% by weight or less,(B) a free-radical initiator,(C) at least one vinyl aromatic monomer and(D) an unsaturated dicarboxylic anhydride, wherein the weight ratios of (B):(A), (C):(A), (D):(A) and (C):(D) are 0.005-1.0:100, 0.2-20:100, 0.5-15:100 and 0.1-3:1, respectively.The process is suited for industrially producing a modified copolymer rubber having a high bound unsaturated dicarboxylic anhydride content, a low tendency of increase of the Mooney viscosity [ML.sub.1+4 (121.degree. C.)], and an excellent moldability and storage stability without being obstructed by gel formation during the kneading. The modified copolymer rubber thus obtained can be advantageously used for thermoplastic elastomer, blending polymer adhesive etc.
摘要翻译：通过在200〜280℃下捏合得到的改性共聚物橡胶（A）至少一种选自数均分子量为10,000-100,000的乙烯-α-烯烃共聚物橡胶和乙烯含量为15-85％（重量），乙烯-α-烯烃 - 非共轭二烯共聚物橡胶的数均分子量为10,000-100,000，乙烯含量为15-85％（重量），非共轭二烯含量为 3.0重量％以下，（B）自由基引发剂，（C）至少一种乙烯基芳族单体和（D）不饱和二羧酸酐，其中（B）:( A），（C）：（A），（D）：（A）和（C）:( D）分别为0.005-1.0:100,0.2-20:100,0.5-15:100和0.1-3:1。该方法适用于工业生产具有高结合不饱和二羧酸酐含量的改性共聚物橡胶，门尼粘度[ML1 + 4（121℃）]增加的趋势低，并且具有优异的成型性和储存稳定性，而不会在捏合期间被凝胶形成阻碍。由此获得的改性共聚物橡胶可有利地用于热塑性弹性体，共混聚合物粘合剂等。

25. 发明授权

US5032459A Modified polyolefin resin 失效
公开(公告)号：US5032459A
公开(公告)日：1991-07-16
申请号：US577818
申请日：1990-09-04
申请人： Yoshiki Toyoshima , Mitsuyuki Okada , Takeshi Fujii , Kentaro Yamaguchi , Mitsuji Tsuji , Hideo Shinonaga
发明人： Yoshiki Toyoshima , Mitsuyuki Okada , Takeshi Fujii , Kentaro Yamaguchi , Mitsuji Tsuji , Hideo Shinonaga
IPC分类号： C08F255/00 , C08F287/00 , C08F291/02 , C08J7/04 , C08L51/04 , B32B27/08 , C08L23/26 , C08L51/06
CPC分类号： C08J7/047 , C08F255/00 , C08F287/00 , C08F291/02 , C08J2351/00 , C08J2475/00 , Y10T428/31573 , Y10T428/31587
摘要： According to the present invention, there is provided a modified polyolefin resin having the following merits:(1) The amount of bound unsaturated carboxylic acid, a derivative thereof of unsaturated epoxy compound is high.(2) The change of the melt flow rate during the modification is small.(3) The physical properties are of high grade.(4) The coating affinity with urethane coatings and resistance to falling off of the coating layer are excellent.The modified polyolefin resin of the present invention can be used for adhesives, covering materials, binders, laminate bonding agent and polymer alloy constituents.

26. 发明授权

US5015692A Process for preparing modified diene polymer rubbers 失效
标题翻译：改性二烯聚合物橡胶的制备方法
公开(公告)号：US5015692A
公开(公告)日：1991-05-14
申请号：US501700
申请日：1990-03-30
申请人： Hiroyoshi Takao , Akio Imai , Tomoaki Seki , Mitsuji Tsuji
发明人： Hiroyoshi Takao , Akio Imai , Tomoaki Seki , Mitsuji Tsuji
IPC分类号： C08C19/42
CPC分类号： C08C19/42
摘要： A process for preparing modified diene polymer rubbers having an increased impact resilience and a reduced hardness at low temperatures and useful as rubber materials for automobile tires and other industries which comprises producing an alkali metal-containing conjugated diene polymer, and reacting the alkali metal-containing polymer with a modifier selected from the group consisting of a nitro compound, a phosphoryl chloride compound of the formula: ##STR1## wherein R.sup.1 to R.sup.4 are independently an alkyl group, and an aminosilane compound of the formula: ##STR2## wherein R.sup.5 to R.sup.7 are independently an alkyl group or an alkoxyl group, R.sup.8 and R.sup.9 are independently an alkyl group, and n is an integer,said alkali metal-containing diene polymer being prepared by a living anionic polymerization using an alkali metal-based catalyst or by an addition reaction of a diene polymer having conjugated diene units and an alkali metal-based catalyst in a hydrocarbon solvent. The modified diene polymers can be incorporated with usual rubber additives to provide rubber compositions for various purposes, and the cured products show an increased impact resilience and a reduced hardness at low temperatures.

27. 发明授权

US4918142A Rubber composition of tire tread containing block copolymer coupled with dicarboxylic acid ester 失效
标题翻译：含有二羧酸酯的嵌段共聚物的轮胎胎面橡胶组合物
公开(公告)号：US4918142A
公开(公告)日：1990-04-17
申请号：US320836
申请日：1989-03-08
申请人： Yuichi Saito , Takuzoh Yabuta , Hiroyoshi Takao , Akio Imai , Mitsuji Tsuji
发明人： Yuichi Saito , Takuzoh Yabuta , Hiroyoshi Takao , Akio Imai , Mitsuji Tsuji
IPC分类号： B29D30/52 , B60C1/00 , C08F297/04 , C08L21/00 , C08L53/00 , C08L53/02
CPC分类号： C08L21/00 , B60C1/0016 , C08F297/044 , C08L53/02 , C08L9/06
摘要： A rubber composition suitable for tire treads having well-balanced excellent steering stability in cornering, wet skid characteristic, ice skid characteristic and rolling characteristic, and an excellent processability, which comprises a rubber component containing a block copolymer consisting essentially of a block A and a block B, obtained by conducting polymerization of an aromatic vinyl compound and a conjugated diene compound in a hydrocarbon solvent in the presence of an organolithium initiator and modifying with a coupling agent, and satisfying the following conditions (A) to (E);(A) the block A having a content of an aromatic vinyl compound of 5 to 29% by weight and a content of 1,2-bonds in the conjugated diene component of 25 to 55% by weight,(B) the block B having a content of an aromatic vinyl compound of 35 to 60% by weight and a content of 1,2-bonds in the conjugated diene component of 20 to 70% by weight,(C) the content of the block A in the block copolymer being from 20 to 80% by weight,(D) the average content of the aromatic vinyl compound in the block copolymer being from 20 to 40% by weight and the average content of 1,2-bonds in the conjugated diene component of the block copolymer being from 20 to 60% by weight, and(E) at least 40% by weight of the polymer chains of the block copolymer being a branched polymer formed by modification with a trifunctional or tetrafunctional coupling agent.
摘要翻译：一种适用于轮胎胎面的橡胶组合物，其具有平衡优异的转弯转向稳定性，防滑特性，防滑特性和滚动特性以及优异的加工性能，其包括含有基本上由块A和嵌段B，其通过在有机锂引发剂的存在下在烃溶剂中进行芳族乙烯基化合物和共轭二烯化合物的聚合而获得，并且用偶联剂进行改性，并满足以下条件（A）至（E）; （A）具有5〜29重量％的芳族乙烯基化合物的含量和共轭二烯组分中的1,2-键含量为25〜55重量％的嵌段A，（B）嵌段B具有 35〜60重量％的芳香族乙烯基化合物的含量和共轭二烯成分中的1,2-键含量为20〜70重量％，（C）嵌段共聚物中嵌段A的含量为 20〜80重量％，（D）嵌段共聚物中芳族乙烯基化合物的平均含量为20〜40重量％，嵌段共聚物的共轭二烯成分中的1,2-键的平均含量为20〜60重量％，（E）嵌段共聚物的聚合物链的至少40重量％为通过三官能或四官能偶合剂改性形成的支链聚合物。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式