Butadiene-based rubber composition
    4.
    发明授权
    Butadiene-based rubber composition 失效
    丁二烯橡胶组合物

    公开(公告)号:US4824908A

    公开(公告)日:1989-04-25

    申请号:US29558

    申请日:1987-03-24

    摘要: A butadiene-based rubber composition is disclosed, which contains not less than 20% by weight of a butadiene-based homopolymer or copolymer having a glass transition temperature (Tg) of not less than -105.degree. C., but less than -70.degree. C. and a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 10 to 150. The butadiene-based homopolymer or copolymer is obtained by polymerizing butadiene or random-copolymerizing butadiene with at least one kind of a monomer selected from the group consisting of another conjugated diene and an aromatic vinyl compound, and then reacting polymerization-active terminals thereof with an isocyanate compound and/or an isothiocyanate compound. The butadiene-based rubber composition has excellent resilience, fracture strength, and wear resistance as a vulcanizate as well as excellent processability as an unvulcanized rubber, and can be used as tire applications such as tire treads, undertreads, sidewalls, bead portions, etc. as well as vibration insulating rubber, hoses, belts and other industrial articles.

    摘要翻译: 公开了一种丁二烯基橡胶组合物,其含有不少于20重量%的玻璃化转变温度(Tg)不低于-105℃但小于-70℃的丁二烯基均聚物或共聚物 丁二烯类均聚物或共聚物是通过将丁二烯或无规共聚丁二烯与至少一种选自以下的单体进行聚合而获得的:丁二烯类均聚物或共聚物 由另一种共轭二烯和芳族乙烯基化合物组成,然后使其聚合活性末端与异氰酸酯化合物和/或异硫氰酸酯化合物反应。 丁二烯类橡胶组合物作为硫化橡胶具有优异的回弹性,断裂强度和耐磨性以及作为未硫化橡胶的优异加工性,并且可以用作轮胎胎面,胎面,胎侧,胎圈部等轮胎用途。 以及隔振橡胶,软管,皮带等工业用品。

    Conjugated diene based rubber composition
    5.
    发明授权
    Conjugated diene based rubber composition 失效
    共轭二烯基橡胶组合物

    公开(公告)号:US4742117A

    公开(公告)日:1988-05-03

    申请号:US39833

    申请日:1987-04-17

    IPC分类号: C08C19/44 C08L9/00

    CPC分类号: C08C19/44

    摘要: A rubber composition containing not less than 20% of a conjugated diene based polymer or copolymer. The polymer or copolymer is obtained by polymerizing a conjugated diene or copolymerizing the conjugated diene with at least one kind of other conjugated diene and an aromatic vinyl compound with use of a lithium initiator, and then reacting an isocyanate compound with active terminals of the thus obtained polymer or copolymer. The conjugated diene is butadiene or isoprene, while other conjugated diene is selected from pentadiene, 2,3-dimethylbutadiene as well as isoprene and butadiene, and an aromatic vinyl compound may be styrene, vinyltoluene, .alpha.-methylstyrene, etc. The rubber composition is applicable as tread portion, carcass, side wall portion of tires, vibration resistant rubber, window frame, hose, and various industrial articles.

    摘要翻译: 含有不少于20%共轭二烯系聚合物或共聚物的橡胶组合物。 聚合物或共聚物是通过使共轭二烯聚合或使用锂引发剂将共轭二烯与至少一种其它共轭二烯和芳族乙烯基化合物共聚而获得的,然后使异氰酸酯化合物与如此获得的活性末端反应 聚合物或共聚物。 共轭二烯是丁二烯或异戊二烯,而其它共轭二烯选自戊二烯,2,3-二甲基丁二烯以及异戊二烯和丁二烯,芳族乙烯基化合物可以是苯乙烯,乙烯基甲苯,α-甲基苯乙烯等。橡胶组合物是 适用于胎面部分,胎体,轮胎的侧壁部分,防振橡胶,窗框,软管和各种工业制品。

    Hydrogenated block copolymer and composition comprising the same
    6.
    发明授权
    Hydrogenated block copolymer and composition comprising the same 失效
    加氢嵌段共聚物及其组合物

    公开(公告)号:US5206301A

    公开(公告)日:1993-04-27

    申请号:US536564

    申请日:1990-07-12

    摘要: A hydrogenated block copolymer having a number-average molecular weight of 40,000-700,000, obtained by hydrogenating at least 80% of the olefinic bonds of a block copolymer having in the molecule at least one each ofa polymer block A composed of 90% by weight or more of a vinyl aromatic compound,a polybutadiene polymer block B having a 1,2-vinyl structure of 30-70%, anda polybutadiene polymer block C having a 1,2-vinyl structure of less than 30%,in which block copolymer the blocks A, B and C are contained at a specific ratio, or a unit of the block copolymer is bonded, via a coupling agent residue, to at least one polymer block unit of the blocks A, B and C and thereby the polymer molecular chain is extended or branched; and a thermoplastic resin composition comprising the hydrogenated block copolymer.

    摘要翻译: PCT No.PCT / JP89 / 01157 Sec。 371日期1990年7月12日 102(e)日1990年7月12日PCT 1989年11月14日PCT PCT。 WO90 / 05753 PCT出版物 日本1990年5月31日。一种数均分子量为40,000-700,000的氢化嵌段共聚物,其通过氢化至少80%的分子中具有至少一种聚合物嵌段A的嵌段共聚物的烯键 由乙烯基芳族化合物的90重量%以上,1,2-乙烯基结构为30〜70摩尔的聚丁二烯聚合物嵌段B和1,2-乙烯基结构的聚丁二烯聚合物嵌段C小于 30%,其中嵌段A,B和C以特定比例包含或嵌段共聚物的单元通过偶联剂残基键合至块A,B的至少一个聚合物嵌段单元 和C,从而使聚合物分子链延伸或分支; 和包含氢化嵌段共聚物的热塑性树脂组合物。

    Vulcanized rubber composition
    9.
    发明授权
    Vulcanized rubber composition 失效
    硫化橡胶组合物

    公开(公告)号:US5011888A

    公开(公告)日:1991-04-30

    申请号:US449308

    申请日:1989-12-06

    摘要: A rubber composition is disclosed which contains not less than 20% by weight in a rubber component of a block copolymer composed of polymer or copolymer block units (A) and a random copolymer block units (B). The polymer or copolymer block units (A) are obtained by singly polymerizing a conjugated diolefine or copolymerizing the conjugated diolefine and a monovinyl aromatic hydrocarbon with use of a lithium initiator and contains not more than 10% by weight of the bound monovinyl aromatic hydrocarbon. The random copolymer block unit (B) are obtained by copolymerizing the conjugated diolefine and the monovinyl aromatic hydrocarbon and contain 15 to 80% by weight of the bound monovinyl aromatic hydrocarbon. In the block copolymer, (i) the block copolymer contains not less than 10% by weight of each of the block units (A) and the block units (B); (ii) the total content of the bound monovinyl aromatic hydrocarbon is from 10 to 40% by weight; (iii) the average content of the vinyl bonds in the conjugated diolefine portions is from 20 to 70%; and (iv) polymerizable terminals of the block copolymer are reacted with an isocyanate compound.

    摘要翻译: 公开了在由聚合物或共聚物嵌段单元(A)和无规共聚物嵌段单元(B)组成的嵌段共聚物的橡胶组分中不少于20重量%的橡胶组合物。 聚合物或共聚物嵌段单元(A)是通过使共轭二烯烃单独聚合或使用锂引发剂共轭共轭二烯和单乙烯基芳族烃而得到的,并且含有不超过10重量%的结合的单乙烯基芳烃。 无规共聚物嵌段单元(B)通过使共轭二烯烃和单乙烯基芳族烃共聚而得到,并含有15〜80重量%的结合的单乙烯基芳烃。 在嵌段共聚物中,(i)嵌段共聚物含有不少于块单元(A)和嵌段单元(B)的10重量%。 (ii)结合的单乙烯基芳烃的总含量为10〜40重量% (iii)共轭二烯烃部分中的乙烯基键的平均含量为20〜70%。 和(iv)嵌段共聚物的可聚合端与异氰酸酯化合物反应。

    Rubber composition comprising a styrene-butadiene block copolymer having
two kinds of blocks
    10.
    发明授权
    Rubber composition comprising a styrene-butadiene block copolymer having two kinds of blocks 失效
    包含具有两种嵌段的苯乙烯 - 丁二烯嵌段共聚物的橡胶组合物

    公开(公告)号:US4782119A

    公开(公告)日:1988-11-01

    申请号:US769923

    申请日:1985-08-27

    摘要: A rubber composition containing at least 20% by weight of a styrene-butadiene block copolymer consisting of a block (A) and a block (B) characterized in that: (i) the block (A) is a styrene-butadiene copolymer block having the content of styrene of 10-80% by weight and the average content of the vinyl bonds in the butadiene portion of 30-70% by weight; (ii) the block (B) is a polybutadiene block with the average content of the vinyl bonds in the butadiene portion being not more than 60% by weight (iii) the styrene-butadiene block copolymer contains at least 20% by weight of each of the block (A) and the block (B); (iv) the average content of the vinyl bonds in the butadiene portion of the block (A) is greater by at least 5% by weight than that of the block (B); (v) the glass transition temperature of the block (A) is higher by at least 30.degree. C. than that of the block (B); (vi) the whole content of the bound styrene in the above block copolymer is 5-40% by weight; (vii) the ratio Mw/Mn between the weight average molecular weight Mw and the number average molecular weight Mn of the block copolymer is 1.8-5.0 when calculated as polystyrene according to the gel permeation chromatogram; and (viii) the Mooney's viscosity (ML.sub.1+4.sup.100.degree. C.) of the block copolymer is 20-150.

    摘要翻译: 一种含有至少20重量%由嵌段(A)和嵌段(B)组成的苯乙烯 - 丁二烯嵌段共聚物的橡胶组合物,其特征在于:(i)嵌段(A)是苯乙烯 - 丁二烯共聚物嵌段,其具有 苯乙烯含量为10-80重量%,丁二烯部分中乙烯基键的平均含量为30-70重量%; (ii)嵌段(B)是丁二烯部分中乙烯基键的平均含量不大于60重量%的聚丁二烯嵌段(iii)苯乙烯 - 丁二烯嵌段共聚物含有至少20重量% (A)和块(B); (iv)嵌段(A)的丁二烯部分中的乙烯基键的平均含量比块(B)的平均含量高至少5重量%。 (v)嵌段(A)的玻璃化转变温度比嵌段(B)的玻璃化转变温度高至少30℃; (vi)上述嵌段共聚物中的结合苯乙烯的全部含量为5-40重量% (vii)根据凝胶渗透色谱法计算,当以聚苯乙烯计算时,嵌段共聚物的重均分子量Mw与数均分子量Mn之比Mw / Mn为1.8-5.0; 和(viii)嵌段共聚物的门尼粘度(ML1 + 4100℃)为20-150℃。