Rubber composition for tire treads

    公开(公告)号:EP0270927A3

    公开(公告)日:1989-08-02

    申请号:EP87117437.1

    申请日:1987-11-26

    IPC分类号: C08F297/04 B60C1/00 C08G81/02

    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 20 % 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.

    Rubber composition for tire treads
    2.
    发明公开
    Rubber composition for tire treads 失效
    轮胎胎面用橡胶组合物

    公开(公告)号:EP0270927A2

    公开(公告)日:1988-06-15

    申请号:EP87117437.1

    申请日:1987-11-26

    IPC分类号: C08F297/04 B60C1/00 C08G81/02

    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 20 % 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,该组合物在转弯,湿滑特性,防冰特性和滚动特性方面具有良好的平衡优异操纵稳定性和优异的可加工性,该橡胶组合物包含含有基本上由嵌段A和 嵌段B,通过在有机锂引发剂存在下在烃溶剂中使芳香族乙烯基化合物和共轭二烯化合物聚合并用偶联剂进行改性而获得,并且满足以下条件(A)至(E); (A)芳香族乙烯基化合物的含量为5〜20重量%,共轭二烯成分中的1,2-键含量为25〜55重量%的嵌段A,(B)嵌段B具有 芳香族乙烯基化合物的含量为35〜60重量%,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 (D)嵌段共聚物中的芳香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20〜80重量% (E)嵌段共聚物的聚合物链的至少40重量%是通过用三官能或四官能偶联剂改性形成的支化聚合物。

    Adhesive composition
    6.
    发明公开
    Adhesive composition 失效
    粘合剂组成

    公开(公告)号:EP0336744A3

    公开(公告)日:1991-10-09

    申请号:EP89303383.7

    申请日:1989-04-05

    IPC分类号: C09J151/06 C08L51/06 C08J5/06

    CPC分类号: C08F8/32 C09J151/06

    摘要: An adhesive composition comprising a modified, ethylene/ a-olefin copolymer rubber or a modified, ethylene/a-olefin/non-conjugated diene copolymer rubber containing 0.1 - 100/o by weight of at least one member selected from the group consisting of an acid anhydride and a dicarboxylic acid, and, if necessary, as an amine compound,
    (i) 0.2 - 2 moles of a dialkylamine per mole of the acid anhydride in said modified copolymer rubber when said modified copolymer rubber contains no dicarboxylic acid; (ii) 0.2 - 2 moles of a polyamine compound per mole of the total amount of the acid anhydride and the dicarboxylic acid in said modified copolymer rubber; or (iii) 0.2 - 2 moles of a dialkylamine per mole of the acid anhydride in said modified copolymer rubber and 0.2 - 2 moles of a polyamine compound per mole of the acid anhydride in said modified copolymer rubber when said modified copolymer rubber contains no dicarboxylic acid. The above adhesive composition exhibits good adhesion for rubber compositions, particularly low saturated, non-polar rubber compositions and fibers, and is excellent in storage stability.

    摘要翻译: 一种粘合剂组合物,它含有改性的乙烯/α-烯烃共聚物橡胶或改性的乙烯/α-烯烃/非共轭二烯共聚物橡胶,该橡胶含有0.1-100%(重量)的至少一种选自 (ii)所述改性共聚物橡胶不含二羧酸时,所述改性共聚物橡胶中每摩尔酸酐0.2-2摩尔二烷基胺;以及(如果需要)作为胺化合物, (ii)每摩尔所述改性共聚物橡胶中酸酐和二羧酸总量为0.2-2摩尔多胺化合物; 或(iii)当所述改性共聚物橡胶不含二羧酸时,所述改性共聚物橡胶中每摩尔酸酐0.2-2摩尔二烷基胺和每摩尔酸酐0.2-2摩尔多胺化合物 酸。 上述粘合剂组合物对橡胶组合物,特别是低饱和非极性橡胶组合物和纤维表现出良好的粘合性,并且具有优异的储存稳定性。

    Thermoplastic resin composition
    7.
    发明公开
    Thermoplastic resin composition 失效
    热塑性树脂组合物

    公开(公告)号:EP0408255A1

    公开(公告)日:1991-01-16

    申请号:EP90307369.0

    申请日:1990-07-05

    IPC分类号: C08L71/12 C08L51/06 C08L23/12

    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.

    摘要翻译: 公开了一种热塑性树脂组合物,其包含(a)改性聚苯醚或含有它的组合物,以及(b)(i)包含丙烯聚合物的改性丙烯聚合物,所述丙烯聚合物与苯乙烯基单体接枝共聚或与 苯乙烯类单体和可与其共聚的单体,或(ii)含有(b) - (i)中的改性丙烯聚合物和丙烯聚合物的组合物。 树脂组合物可以含有(c)含有至少一种具有极性基团的橡胶状物质和/或(d)熔体流动性改进剂的橡胶状物质。

    Modified polyolefin resin
    8.
    发明公开
    Modified polyolefin resin 失效
    改性聚烯烃树脂

    公开(公告)号:EP0317359A3

    公开(公告)日:1990-08-16

    申请号:EP88310947.2

    申请日:1988-11-21

    摘要: A modified polyolefin resin obtained by melt-kneading a mixture consisting of
    100 parts by weight of a mixture consisting of
    (A) 40-99% by weight of a polyolefin resin having a melt flow rate of 0.05-60 g/10 min and (B) 60-1% by weight of a solid rubber having a number-average molecular weight of 10,000-200,000, (C) 0.1-5 parts by weight of at least one compound selected from the group consisting of unsaturated carboxylic acids, the derivatives thereof and unsaturated epoxy compounds, (D) 0.1-5 parts by weight of an unsaturated aromatic compound and (E) 0.01-2 parts by weight of a free-radical initiator,
    the molar ratio of (C)/(D) ranging from 1/0.1 inclusive to 1/1 exclusive. 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 or 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.

    Thermoplastic resin composition
    9.
    发明公开
    Thermoplastic resin composition 失效
    Thermoplastische Harzzusammensetzung。

    公开(公告)号:EP0381390A2

    公开(公告)日:1990-08-08

    申请号:EP90300841.5

    申请日:1990-01-26

    IPC分类号: C08L71/12 C08L77/00 C08L51/04

    摘要: A thermoplastic resin composition which comprises:

    (A) 100 parts by weight of:
    (i) a resin composition comprising 5-95% by weight of a polyphenylene ether obtainable by oxidation polymerisation of at least one phenol compound represented by the formula:
    wherein R¹, R², R³, R⁴ and R⁵, which may be identical or different, each represents a hydrogen atom, a halogen atom or a substituted or unsubstituted hydrocarbon group, and at least one of R¹ to R⁵ is a hydrogen atom, or
    (ii) a polyphenylene ether-based resin composition comprising said polyphenylene ether and a polystyrene, and
    95-5% by weight of a polyamide resin;
    (B) 5 - 50 parts by weight of a saturated rubber obtainable by grafting 5 - 100 parts by weight of an aromatic vinyl compound onto 100 parts by weight of a saturated rubber and allowing 0.05 - 10 parts by weight of a compatibilising agent to react with said rubber, the grafting degree of said aromatic vinyl compound being 50% by weight or more; and
    (C) 0.05 - 20 parts by weight of a compatibilising agent.

    摘要翻译: 一种热塑性树脂组合物,其包含:(A)100重量份:(i)包含5-95重量%的聚苯醚的树脂组合物,其可通过至少一种由下式表示的酚化合物的氧化聚合获得:

    Polypropylene composition
    10.
    发明公开
    Polypropylene composition 失效
    聚丙烯,Zusammensetzung。

    公开(公告)号:EP0336320A2

    公开(公告)日:1989-10-11

    申请号:EP89105725.9

    申请日:1989-03-31

    摘要: The polypropylene composition of the present invention comprises:

    a blend of a resin composition composed of a specific polypropylene type resin (C) and at least one saturated polyester resin (D),
    an epoxy group containing copolymer (E) and
    at least one rubber selected from the group consisting of an ethylenic copolymer rubber (F), a modified ethylenic copolymer rubber (G) obtained by graft copolymerizing an unsaturated carboxylic acid or a derivative thereof onto an ethylenic copolymer rubber and a modified ethylenic copolymer rubber (H) obtained by graft copolymerizing an unsaturated carboxylic acid or derivative thereof .and an unsaturated aromatic monomer onto an ethylenic copolymer rubber, and a basic compound (I) optionally added as a reaction accelerator.

    The polypropylene composition according to the present invention is not only good in molding processability but also markedly effective in that it can give molded products superior in physical properties to those obtained from individual polymers constituting the thermoplastic resin composition.
    The novel polypropylene composition provided by the present invention can easily be processed into a molded product, a film, a sheet or the like by a molding method usually used for molding thermoplastic resins, for example, injection molding, extrusion molding or the like, giving a product which has a very good balance of stiffness, heat resistance, impact resistance, scratch resistance, coating properties, oil resistance, chemical resistance, water resistance, etc., and is ecellent in appearance uniformity and smoothness. It can be advantageously used for purposes requiring especially high heat resistance and impact resistance, in particular, low-temeprature impact resistance.

    摘要翻译: 本发明的聚丙烯组合物包括:由特定聚丙烯类树脂(C)和至少一种饱和聚酯树脂(D)组成的树脂组合物,含环氧基共聚物(E)和至少一种橡胶的共混物 由乙烯共聚物橡胶(F),通过将不饱和羧酸或其衍生物接枝共聚到乙烯类共聚物橡胶上得到的改性乙烯类共聚物橡胶(G)和通过接枝得到的改性乙烯类共聚物橡胶(H) 将不饱和羧酸或其衍生物和不饱和芳族单体共聚到乙烯类共聚物橡胶上,和作为反应促进剂任意加入的碱性化合物(I)。 根据本发明的聚丙烯组合物不仅具有良好的成型加工性,而且显着有效,因为它可以得到与由构成热塑性树脂组合物的各种聚合物获得的物理性能优异的成型产品。 通过本发明提供的新型聚丙烯组合物可以通过通常用于模塑热塑性树脂的模制方法,例如注射成型,挤出成型等,可以容易地加工成模制品,薄膜,片材等,给予 具有非常好的刚度,耐热性,耐冲击性,耐刮擦性,涂布性,耐油性,耐化学性,耐水性等的良好平衡的产品,外观均匀性和平滑度优异。 它可以有利地用于需要特别高的耐热性和耐冲击性,特别是低温抗冲击性的目的。