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    Thermoplastic polyurethane
    1.
    发明授权
    Thermoplastic polyurethane 失效
    热塑性聚氨酯

    公开(公告)号：US5695884A

    公开(公告)日：1997-12-09

    申请号：US457275

    申请日：1995-06-01

    申请人： Futoshi Ishimaru ,  Satoshi Nakamura ,  Chikara Sugitawa ,  Osamu Imagawa

    发明人： Futoshi Ishimaru ,  Satoshi Nakamura ,  Chikara Sugitawa ,  Osamu Imagawa

    IPC分类号： C08G18/08 ,  C08G18/12 ,  C08G18/46 ,  C08G18/66 ,  C08G18/32

    CPC分类号： C08G18/0828 ,  C08G18/4676 ,  C08G18/664 ,  Y10S428/90 ,  Y10T428/31551 ,  Y10T428/31609

    摘要： A thermoplastic polyurethane composition of the present invention includes a thermoplastic polyurethane obtained by reacting at least the following components A, B, and C: (A) a polyester polyol having a number average age molecular weight of 500 to 5000, containing an acid component including aromatic dicarboxylic acid and aliphatic dicarboxylic acid, the molar ratio of the aromatic dicarboxylic acid to the aliphatic dicarboxylic acid being 5:95 to 90:10; (B) a low molecular weight diol having a molecular weight of less than 500; and (C) an organic diisocyanate, wherein the thermoplastic polyurethane has a metal sulfonate group of 10 to 1000 equivalents/10.sup.6 g of the polyurethane and a urethane group of 1200 to 3000 equivalents/10.sup.6 g of the polyurethane.

    摘要翻译： 本发明的热塑性聚氨酯组合物包括通过使至少以下组分A，B和C反应得到的热塑性聚氨酯：（A）数均分子量为500〜5000的聚酯多元醇，其含有 芳族二羧酸和脂族二羧酸，芳族二羧酸与脂肪族二羧酸的摩尔比为5:95〜90:10; （B）分子量小于500的低分子量二醇; 和（C）有机二异氰酸酯，其中，所述热塑性聚氨酯的金属磺酸盐基为10〜1000当量/ 106g的聚氨酯，氨基甲酸酯基为1200〜3000当量/ 106g的聚氨酯。

    Composition of polyester-block copolymer
    3.
    发明授权
    Composition of polyester-block copolymer 失效
    聚酯嵌段共聚物的组成

    公开(公告)号：US4442262A

    公开(公告)日：1984-04-10

    申请号：US322152

    申请日：1981-11-17

    申请人： Haruhiko Yusa ,  Mitsuru Hoshino ,  Akira Kurosaki ,  Hironobu Furusawa ,  Chikara Sugitawa

    发明人： Haruhiko Yusa ,  Mitsuru Hoshino ,  Akira Kurosaki ,  Hironobu Furusawa ,  Chikara Sugitawa

    IPC分类号： C08L51/04 ,  C08L67/02 ,  C08F8/00 ,  C08L51/00

    CPC分类号： C08L51/04 ,  C08L67/025

    摘要： Disclosed herein is a composition of a polyester-block copolymer, comprising 5 to 80% by weight of at least one kind of graft-copolymer obtained by graft-copolymerizing 50 to 25 parts by weight of a monomeric mixture predominantly consisting essentially of styrene and methyl methacrylate and containing 0.01 to 3.0% by weight of a cross-linking agent with 50 to 75 parts by weight of a cross-linked elastomeric trunk polymer containing not less than 50% by weight of rubber like segment selected from the group consisting of butadiene unit and C.sub.4 to C.sub.10 -alkyl acrylate units, and 0.01 to 3.0% by weight of a cross-linking agent, and 95 to 20% by weight of a polyester-block copolymer, the composition giving shaped articles of favorable superficial appearance even when processed by shape-forming under conditions of mixing and kneading of a relatively low degree.

    摘要翻译： 本文公开了一种聚酯嵌段共聚物的组合物，其包含5-80重量％的至少一种接枝共聚物，所述接枝共聚物通过接枝共聚50至25重量份主要由苯乙烯和甲基 含有0.01〜3.0重量％的交联剂和50〜75重量份的交联弹性体树脂聚合物，其含有不小于50重量％的橡胶状链段，所述橡胶状链段选自丁二烯单元 丙烯酸C4〜C10烷基酯单元，交联剂为0.01〜3.0重量％，聚酯嵌段共聚物为95〜20重量％，即使在加工成型制品时， 在相对较低程度的混合和捏合条件下成形。

    Magnetic recording media and thermoplastic polyurethane resins therefor
    4.
    发明授权
    Magnetic recording media and thermoplastic polyurethane resins therefor 失效
    磁记录介质及其热塑性聚氨酯树脂

    公开(公告)号：US06545119B2

    公开(公告)日：2003-04-08

    申请号：US09520204

    申请日：2000-03-07

    申请人： Hirotoshi Kizumoto ,  Takeshi Yatsuka ,  Chikara Sugitawa ,  Kuniyuki Doi

    发明人： Hirotoshi Kizumoto ,  Takeshi Yatsuka ,  Chikara Sugitawa ,  Kuniyuki Doi

    IPC分类号： C08G1842

    CPC分类号： G11B5/7021 ,  C08G18/4202 ,  C08G18/4211 ,  C08G18/4238 ,  C09D175/06

    摘要： A magnetic recording medium possessing a magnetic layer formed by application onto a non-magnetic support, of a magnetic coating containing magnetic particles dispersed in a binder which contains a polyurethane resin, together with carbon black particles at 5% by weight or higher, based on the weight of the magnetic particles. The polyurethane resin to be used herein is composed of: (a) a polyester polyol having a molecular weight of 2000 or lower and containing at least one selected from the group consisting of aromatic dibasic acids and alicyclic dibasic acids at a ratio of 90 mol % or higher of acid components; (b) a high molecular weight polyol having a molecular weight of 5000 or lower, which is at least one selected from the group consisting of (b1) polyester polyols each containing an aliphatic dibasic acid at a ratio of 90 mol % or higher of acid components, (b2) polylactones, (b3) polyester polyols, and (b4) polycarbonate polyols; (c) an organic diisocyanate compound; and (d) an optional compound having a molecular weight of 500 or lower and containing at least two functional groups in one molecule, which are reactive with isocyanate groups.

    摘要翻译： 一种具有磁性层的磁记录介质，其特征在于，在非磁性载体上形成磁性涂层，所述磁性涂层含有分散在含有聚氨酯树脂的粘合剂中的磁性颗粒以及基于5重量％以上的碳黑颗粒，基于 磁性颗粒的重量。 本说明书中使用的聚氨酯树脂由以下组成：（a）分子量为2000以下且含有选自芳族二元酸和脂环族二元酸中的至少一种的聚酯多元醇的比例为90摩尔％ 或更高的酸组分; （b）分子量为5000以下的高分子量多元醇，其为选自（b1）各自含有比例为90摩尔％以上的脂肪族二元酸的（b1）的聚酯多元醇中的至少一种 组分，（b2）聚内酯，（b3）聚酯多元醇和（b4）聚碳酸酯多元醇; （c）有机二异氰酸酯化合物; 和（d）分子量为500以下且在一个分子中含有至少两个与异氰酸酯基团反应的官能团的任选的化合物。