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    • 77. 发明申请
    • Free flowing powder
    • 自由流动的粉末
    • US20030125442A1
    • 2003-07-03
    • US10148442
    • 2002-10-03
    • Catherine Augusta Louis MarisSonja Marie Oosterbosch
    • C08K005/01C08K003/34C08K003/26
    • C08L53/025C08L53/02Y10S524/904C08L2666/24C08L2666/02
    • The present invention relates to a free flowing powder composition with a particle size at most 800 nullm comprising: (a) 100 parts by weight of one or more styrenic block copolymers, at least one of which being a block copolymer (a1) comprising at least one block S having a glass transition temperature Tg above 25null C., which contains polymerized units of a vinylaromatic monomer and at least one elastomeric block B/S having a Tg below 25null C., which contains polymerized units of both a vinylaromatic monomer and a conjugated diene in random sequence, wherein the ratio of block S to block B/S is from 1 to 40% by volume and wherein the amount of the conjugated diene is less than 50% by weight on the whole of the copolymer; optionally (b) 0 to 200 parts by weight of plasticizing oil; optionally (c) 0 to 200 parts by weight of a compatibilising resin; and optionally (d) a dusting agent in an amount of from 0 to 10% by weight based on total weight of composition. It also relates to a process for the preparation thereof and to homogeneous layers derived therefrom.
    • 本发明涉及一种粒度至多为800μm的自由流动的粉末组合物,其包含:(a)100重量份的一种或多种苯乙烯类嵌段共聚物,其中至少一种是至少包含一个嵌段共聚物(a1) 一个具有玻璃化转变温度Tg高于25℃的块S,其包含聚合单元的乙烯基芳族单体和至少一种Tg低于25℃的弹性体嵌段B / S,其含有乙烯基芳族单体的聚合单元 和共轭二烯,其中嵌段S与嵌段B / S的比例为1〜40体积%,共轭二烯的量相对于全部共聚物为50重量%以下。 任选地(b)0至200重量份的增塑油; 任选地(c)0至200重量份的增容树脂; 和任选地(d)占组合物总重量的0至10重量%的除尘剂。 它还涉及其制备方法和由其衍生的均匀层。
    • 79. 发明申请
    • Mouth guard composition
    • 口罩组成
    • US20030088011A1
    • 2003-05-08
    • US10189499
    • 2002-07-08
    • GC Corporation
    • Hiroshi KamoharaTakaharu Takeshita
    • C08K003/00C08K005/01
    • C08L53/00A63B71/085C08K5/01C08L53/02C08L2666/02C08L2666/04
    • To provide a mouth guard composition which hardly generates plastic deformation and which is high in fluidity during the formation after heating and softening and superior in fitness, and which even after repeated use of a mouth guard prepared therefrom, is free from sticking with respect to its surface and does not cause an offensive smell. The mouth guard composition is constituted of 39null98% by weight of a styrene block copolymer; 1null60% by weight of at least one thermoplastic resin selected from the group consisting of an alicyclic saturated hydrocarbon-based resin, a terpene resin, and an aliphatic petroleum resin; and 1null40% by weight of at least one wax selected from the group consisting of a mineral wax, a synthetic wax, a vegetable-based wax, and an animal-based wax.
    • 为了提供难以产生塑性变形并且在加热和软化后的形成中流动性高,适用性优异的口罩组合物,并且即使在重复使用由其制备的口罩后,也不会粘附其 表面并不引起异味。 口罩组合物由苯乙烯嵌段共聚物的39〜98重量%组成, 1〜60重量%的至少一种选自脂环族饱和烃类树脂,萜烯树脂和脂族石油树脂的热塑性树脂; 和1〜40重量%的至少一种选自矿物蜡,合成蜡,植物性蜡和动物蜡的蜡。
    • 80. 发明申请
    • Thermoplastic elastomeric resin composition and a process for the preparation thereof
    • 热塑性弹性体树脂组合物及其制备方法
    • US20030060557A1
    • 2003-03-27
    • US10171156
    • 2002-06-13
    • Michihisa TasakaAkihiro Tamura
    • C08K003/26C08K003/34C08K005/01C08K003/04
    • C08L91/00C08L23/04C08L23/0815C08L23/10C08L23/12C08L53/00C08L53/02C08L53/025C08L91/06C08L91/08C08L2205/02C08L2205/03C08L2205/035C08L2312/00C08L2666/24C08L2666/02C08L2666/04
    • The invention provides a process for the preparation of a thermoplastic elastomeric resin composition comprising melt kneading (a) 100 parts by weight of a block copolymer consisting of at least two polymeric blocks (A) composed mainly of a vinyl aromatic compound and at least one polymeric block (B) composed mainly of a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating said block copolymer, (b) 40 to 240 parts by weight of a non-aromatic softening agent for rubber, (c) 5 to 300 parts by weight of polyethylene or a copolymer composed mainly of ethylene, and (d) 5 to 60 parts by weight of polypropylene or a copolymer composed mainly of propylene, characterized in that the process comprises the following steps: (I) melt kneading the whole amounts of components (a), (b) and (d) and a part of component (c), and, at the same time or subsequently, melt kneading these with (f) an organic peroxide, and (II) melt kneading the product obtained from step (I) with the remaining part of component (c), and component (c) is one which has been prepared using a single site catalyst. The obtained composition is soft and excellent in heat deformation resistance and mechanical strength, moldability and processability. The present invention also provide a thermoplastic elastomeric resin composition comprising the above components (a), (c) and (d) in an amount of 100 parts by weight, 5 to 150 parts by weight and 5 to 80 parts by weight, respectively. The composition is soft and excellent in heat deformation resistance and mechanical strength, moldability and processability and shows good results in the extraction tests.
    • 本发明提供一种制备热塑性弹性体树脂组合物的方法,其包括熔融捏合(a)100重量份由至少两个主要由乙烯基芳族化合物组成的聚合物嵌段(A)和至少一种聚合物 主要由共轭二烯化合物组成的嵌段(B)和/或通过氢化所述嵌段共聚物得到的氢化嵌段共聚物,(b)40〜240重量份的用于橡胶的非芳香族软化剂,(c)5〜 300重量份聚乙烯或主要由乙烯组成的共聚物,和(d)5-60重量份的聚丙烯或主要由丙烯组成的共聚物,其特征在于该方法包括以下步骤:(I)熔融捏合 全部组分(a),(b)和(d)和组分(c)的一部分,同时或随后将其与(f)有机过氧化物熔融捏合,和(II)熔融捏合 从步骤( I)与组分(c)的剩余部分,组分(c)是使用单一位点催化剂制备的组分。 所得组合物柔软且耐热变形性和机械强度,成型性和加工性优异。 本发明还提供一种包含上述组分(a),(c)和(d))的热塑性弹性体树脂组合物,其量分别为100重量份,5至150重量份和5至80重量份。 组合物柔软,耐热变形性和机械强度,成型性和加工性优异,在提取试验中显示出良好的结果。