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    • 33. 发明授权
    • Ethylene copolymer rubber, process for producing the same, and use
    • 乙烯共聚物橡胶,其制备方法和用途
    • US06635727B1
    • 2003-10-21
    • US09889777
    • 2001-07-20
    • Taku KodaKotaro IchinoMasaaki KawasakiKeiji Okada
    • Taku KodaKotaro IchinoMasaaki KawasakiKeiji Okada
    • C08F4642
    • C08L23/16C08F210/16C08F210/18C08L23/04C08L51/06C08L2666/24C08L2666/04C08F210/08C08F236/22C08F2500/17C08F210/06C08F2500/25C08F236/20C08F2500/21
    • The ethylenic copolymer rubber according to the present invention is a novel and useful ethylenic copolymer rubber which can be cross-linked at a high velocity and is superior in scorching stability, in workability and in moldability, of which cross-linked product is superior in the mechanical properties, such as the cross-linked rubber strength etc., and in the form-preservability. A cross-linkable rubber composition containing this ethylenic copolymer rubber is utilized for producing, for example, cross-linked molded rubber product for use as sealing element and automobile weather strip sponge. The ethylenic copolymer rubber according to the present invention comprises a random copolymer made of ethylene, an &agr;-olefin having 3-20 carbon atoms and a triene represented by the formula (1) given below as well as an optionally incorporated non-conjuagted polyene having two or more polymerizable double bonds in the molecule, wherein the mole ratio of ethylene/&agr;-olefin is 95/5-40/60 and the triene content is 0.1-10 mole %, the intrinsic viscosity (&eegr;) determined in decalin at 135° C. is 0.1-10 dl/g and wherein the ratio of the above intrinsic viscosity (&eegr;) versus the converted intrinsic viscosity (&eegr;)blank′ converted to a linear ethylene/propylene copolymer having 70 mole % of ethylene units determined by gel permeation chromatography (GPC, at 140° C., in o-dichlorobenzene solvent) of the ethylenic copolymer rubber, i.e. (&eegr;)/(&eegr;)blank′=g′, is 0.5-0.95. in which R1 and R2 denote each, independently of each other, hydrogen atom, methyl or ethyl and R3 and R4 denote each, independently of each other, methyl or ethyl.
    • 本发明的乙烯类共聚物橡胶是一种新型有用的乙烯类共聚物橡胶,其可以高速交联,并且焦烧稳定性,加工性和成型性优异,其中交联产物在 机械性能,如交联橡胶强度等,以及形态保存性。 含有该乙烯类共聚物橡胶的交联橡胶组合物用于制造例如用作密封元件和汽车防风条海绵的交联模制橡胶产品。 根据本发明的乙烯共聚物橡胶包括由乙烯,具有3-20个碳原子的α-烯烃和由下面给出的式(1)表示的三烯以及任选掺入的非结合多烯烃制成的无规共聚物,其具有 分子中的两个或更多个可聚合双键,其中乙烯/α-烯烃的摩尔比为95 / 5-40 / 60,三烯含量为0.1-10摩尔%,在十氢化萘中测定的特性粘度(η)为135 ℃为0.1-10dl / g,并且其中上述特性粘度(η)相对于转化的特性粘度(η)空白'与转化成线性乙烯/丙烯共聚物的比例,其具有由凝胶测定的70摩尔%的乙烯单元 乙烯共聚物橡胶的渗透色谱(GPC,140℃,邻二氯苯溶剂)即(η)/(η)空白'= g',为0.5-0.95.其中R 1和R <2>各自独立地表示氢原子,甲基或乙基,R 3和R 4各自独立地表示 各自独立地为甲基或乙基。
    • 34. 发明授权
    • Rubber compositions for tires
    • 轮胎用橡胶组合物
    • US06300416B1
    • 2001-10-09
    • US09142863
    • 1998-09-17
    • Keiji OkadaKenichi MorizonoKazuyuki TakimotoTetsuhiro MatsumotoMasaaki KawasakiTetsuo Tojo
    • Keiji OkadaKenichi MorizonoKazuyuki TakimotoTetsuhiro MatsumotoMasaaki KawasakiTetsuo Tojo
    • C08F800
    • C08L21/00B60C1/0016B60C1/0025C08L23/0838C08L23/16Y02T10/862Y10T152/10495C08L2666/06C08L2666/04
    • A rubber composition useful as a tire side wall or tire tread is formed from an unsaturated olefin copolymer (A) or (A′) and diene rubber (B). Copolymers (A) and (A′) are each obtained from (i) ethylene, (ii) aromatic vinyl compound, (iii) non-conjugated polyene, and, optionally (iv) alpha-olefin having at least 3 carbon atoms. When used in forming a tire side wall, copolymer (A) has a molar ratio of (i)/(iv) from 100/0 to 40/60; molar ratio of [((i)+(iv))/(ii)] from 98/2 to 60/40; an intrinsic viscosity, measured in decalin, at 135° C., from 1.0 to 6.0 dl/g; and iodine value from 10 to 50. For use in tire tread, copolymer (A′), has a molar ratio (i)/(iv) from 100/0 to 40/60; molar ratio [((i)+(iv)):(ii)] from 99/1 to 85/15. The weight ratio (A′)/(B) is from 1/99 to 50/50. The compositions for tire side wall are characterized by excellent strength properties and bending fatigue resistance and low fuel consumption. The compositions for tire tread are characterized by superior strength properties, abrasion resistance and braking performance on wet road (wet ski resistance) and small rolling resistance.
    • 可用作轮胎侧壁或轮胎胎面的橡胶组合物由不饱和烯烃共聚物(A)或(A')和二烯橡胶(B)形成。 共聚物(A)和(A')各自分别由(i)乙烯,(ii)芳香族乙烯基化合物,(iii)非共轭多烯,和任选地(iv)具有至少3个碳原子的α-烯烃获得。 当用于形成轮胎侧壁时,共聚物(A)的摩尔比为(i)/(iv)为100/0至40/60; [((i)+(iv))/(ii)]的摩尔比为98/2至60/40; 在135℃下,在萘烷中测定的特性粘度为1.0至6.0dl / g; 并且碘值为10至50.对于轮胎胎面使用共聚物(A'),摩尔比(i)/(iv)为100/0至40/60; 摩尔比[((i)+(iv)):( ii)]从99/1至85/15。 重量比(A')/(B)为1/99至50/50。 用于轮胎侧壁的组合物的特征在于优异的强度性能和抗弯曲疲劳性和低燃料消耗。 用于轮胎胎面的组合物的特征在于在湿路面上具有优异的强度性能,耐磨性和制动性能(湿滑雪性能)和小的滚动阻力。
    • 35. 发明授权
    • Nonconjugated diene-vinyl aromatic-.alpha.-olefin interpolymers
    • 非共轭二烯 - 乙烯基芳族-α-烯烃互聚物
    • US5430117A
    • 1995-07-04
    • US274284
    • 1994-07-13
    • Masaaki KawasakiKeiji OkadaKenzaburo FukutaniTetsuo TojoAkemi Uchimi
    • Masaaki KawasakiKeiji OkadaKenzaburo FukutaniTetsuo TojoAkemi Uchimi
    • B60C1/00C08F210/14C08L23/18C08F236/20C08F212/34
    • C08F210/14B60C1/00C08L23/18
    • There have been provided by the present invention a higher .alpha.-olefin copolymer which has an intrinsic viscosity [.eta.], as measured in decalin at 135.degree. C., of 0.1 to 10 dl/g, and comprises polymer units derived from 95-30 parts by mol of a higher .alpha.-olefin of C.sub.6-20, 5-70 parts by mol of an aromatic ring-containing vinyl monomer represented by the formula [I] (total of the higher .alpha.-olefin and the vinyl monomer are 100 parts by mol), and 0.01 to 30% by mol of a non-conjugated diene represented by the formula [II]; ##STR1## wherein n is an integer of 0 to 5, and R.sup.1, R.sup.2 and R.sup.3 are each independently H or C.sub.1-8 alkyl; ##STR2## wherein n is an integer of 1 to 5, R.sup.4 is C.sub.1-4 alkyl, R.sup.5 and are each independently H or C.sub.1-8 alkyl but are not H simultaneously, a process for the preparation thereof, a higher .alpha.-olefin copolymer composition comprising [A] the higher .alpha.-olefin copolymer and [B] a diene rubber, and a rubber molded product comprising a vulcanized product of the higher .alpha.-olefin copolymer.
    • 本发明提供了一种较高级的α-烯烃共聚物,它在135℃萘烷中测得的特性粘度η为0.1-10dl / g,并且包含衍生自95-30的聚合物单元 (摩尔)C6-20的高级α-烯烃,5-70份(摩尔)式[I]表示的含芳环的乙烯基单体(总共较高级的α-烯烃和乙烯基单体为100份 和0.01〜30摩尔%的由式[II]表示的非共轭二烯; 其中n为0〜5的整数,R 1,R 2和R 3各自独立地为H或C 1-8烷基; R 4是C 1-4烷基,R 5,各自独立地为H或C 1-8烷基,但不同时为H,其制备方法为高级α-烯烃共聚物组合物,其包含[A]高级α-烯烃共聚物和[ B]二烯橡胶,以及包含较高级α-烯烃共聚物的硫化产物的橡胶模制产品。