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    • 1. 发明授权
    • Elastomer composition
    • 弹性体组成
    • US06316068B1
    • 2001-11-13
    • US09149996
    • 1998-09-09
    • Tetsuo MasubuchiMitsuhiro Tanaka
    • Tetsuo MasubuchiMitsuhiro Tanaka
    • B60R2124
    • C08L23/10B60R21/2165C08L23/16C08L53/02C08L53/025Y10T428/13Y10T428/1352C08L2666/24C08L2666/04C08L2666/02
    • An elastomer composition which comprises: (a) 100 parts by weight of a hydrogenated block copolymer prepared by hydrogenating a block copolymer that comprises: a polymer block A mainly comprising at least one vinyl aromatic compound; and a polymer block B mainly comprising at least one conjugate diene, and has a number average molecular weight of from 30,000 to 400,000 and a content of the polymer block A of from 10 to 50% by weight based on the weight of said block copolymer; (b) 5 to 900 parts by weight of a polypropylene mixture comprising: (b-1) 10 to 60% by weight of a polypropylene polymer having a propylene content of 85% by weight or more; and (b-2) 40 to 90% by weight of an ethylene-propylene copolymer rubber having a propylene content of 75% by weight or more, wherein the ethylene-propylene copolymer rubber in said mixture has an average dispersed particle size of not more than 2 &mgr;m and said mixture has a bending modulus of from 20 to 700 Mpa, a Shore D hardness of from 20 to 60 and a melt flow rate of from 10 to 60 g/10 minutes; and (c) 0 to 200 parts by weight of a hydrocarbon oil. Also disclosed is a housing cover of air bag apparatus, which comprises the elastomer composition.
    • 一种弹性体组合物,其包含:(a)100重量份通过氢化嵌段共聚物制备的氢化嵌段共聚物,所述嵌段共聚物包含:主要包含至少一种乙烯基芳族化合物的聚合物嵌段A; 和主要包含至少一种共轭二烯的聚合物嵌段B,其数均分子量为30,000至400,000,聚合物嵌段A的含量为所述嵌段共聚物的重量的10至50重量%; (b)5至900重量份的聚丙烯混合物,其包含:(b-1)10至60重量%的丙烯含量为85重量%以上的聚丙烯聚合物; 和(b-2)40〜90重量%的丙烯含量为75重量%以上的乙烯 - 丙烯共聚物橡胶,其中所述混合物中的乙烯 - 丙烯共聚物橡胶的平均分散粒径不大 所述混合物的弯曲模量为20至700Mpa,肖氏D硬度为20至60,熔体流动速率为10至60g / 10分钟; 和(c)0〜200重量份烃油。 还公开了一种气囊装置的壳体盖,其包括弹性体组合物。
    • 2. 发明授权
    • Air bag cover containing a block copolymer polypropylene resin blend
    • 包含嵌段共聚物聚丙烯树脂混合物的气囊盖
    • US06176510B1
    • 2001-01-23
    • US09195369
    • 1998-11-18
    • Tetsuo MasubuchiMitsuhiro Tanaka
    • Tetsuo MasubuchiMitsuhiro Tanaka
    • C08L5302
    • C08L23/10C08L23/12C08L53/00C08L53/02C08L53/025C08L91/00C08L2205/02C08L2205/035C08L2666/24C08L2666/02C08L2666/04
    • An elastomer composition which comprises (a) 100 parts by weight of a hydrogenated block copolymer mixture comprising: (a-1) 10 to 60 parts by weight of a block copolymer prepared by hydrogenating a block copolymer that comprises: at least two polymer blocks A each mainly comprising a vinyl aromatic compound; and at least one polymer block B mainly comprising a conjugated diene compound, the hydrogenated block copolymer having a number average molecular weight of from more than 200,000 to not more than 400,000 and a content of the polymer block A of from 15 to 40% by weight of said block copolymer; and (a-2) 40 to 90 parts by weight of a block copolymer prepared by hydrogenating a block copolymer that comprises: at least one polymer block A mainly comprising a vinyl aromatic compound; and at least one polymer block B mainly comprising a conjugated diene compound, the hydrogenating block copolymer having a number average molecular weight of from more than 30,000 to not more than 140,000 and a content of the polymer block A of from 8 to 35% by weight of said block copolymer; and (b) 30 to 125 parts by weight of a polypropylene resin having a melt flow rate of from 5 to 100 g/10 minutes; (c) 0 to 50 parts by weight of a hydrocarbon oil. Also disclosed is a housing cover of air bag apparatus, which comprises the elastomer composition.
    • 一种弹性体组合物,其包含(a)100重量份的氢化嵌段共聚物混合物,其包含:(a-1)10至60重量份通过氢化嵌段共聚物制备的嵌段共聚物,所述嵌段共聚物包含:至少两个聚合物嵌段A 每个主要包含乙烯基芳族化合物; 和至少一种主要包含共轭二烯化合物的聚合物嵌段B,数均分子量大于200,000至不大于400,000的氢化嵌段共聚物和聚合物嵌段A的含量为15至40重量% 的所述嵌段共聚物; 和(a-2)40至90重量份通过氢化嵌段共聚物制备的嵌段共聚物,所述嵌段共聚物包含:至少一种主要包含乙烯基芳族化合物的聚合物嵌段A; 和至少一种主要包含共轭二烯化合物的聚合物嵌段B,该加氢嵌段共聚物的数均分子量为30,000至14000以下,聚合物嵌段A的含量为8〜35重量% 的所述嵌段共聚物; 和(b)30〜125重量份熔体流动速率为5〜100g / 10分钟的聚丙烯树脂; (c)0-50重量份烃油。 还公开了一种气囊装置的壳体盖,其包括弹性体组合物。