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    Resin composition and molded article
    1.
    发明授权
    Resin composition and molded article 失效
    树脂组合物和模制品

    公开(公告)号：US06262184B1

    公开(公告)日：2001-07-17

    申请号：US09409443

    申请日：1999-09-30

    申请人： Takeshi Kanamori ,  Hiroshi Urayama ,  Kyohei Takakuwa ,  Makoto Nakamura ,  Yasuo Teraya ,  Sakae Shimotsuma

    发明人： Takeshi Kanamori ,  Hiroshi Urayama ,  Kyohei Takakuwa ,  Makoto Nakamura ,  Yasuo Teraya ,  Sakae Shimotsuma

    IPC分类号： C08L6702

    CPC分类号： C08L67/04 ,  A42B3/06 ,  C08L69/005 ,  C08L2666/18

    摘要： The present invention provides a resin composition comprising polylactic acid and aliphatic polyester carbonate, which has practically adequate heat-resistance temperature, moldability, thermostability, solvent resistance and high mechanical strength, as well as a molded article thereof. In the resin composition, the Vicat softening point is 60° C. or more, the tensile modulus of elasticity is 0.9 GPa or more, the modulus in flexure is 0.6 GPa or more, and the mixing ratio of polylactic acid (A) and aliphatic polyester carbonate (B), in terms of the ratio of (A)/(B) by weight, is 95/5 to 5/95. Further, the present invention provides a biodegradable injection-molded article having improvements in mechanical characteristics and impact resistance and superior disposal properties, particularly having strength enough to make it usable as a headgear material for use in helmets. The biodegradable injection-molded article is excellent in impact resistance, comprising mainly polylactic acid (A) and aliphatic polyester (E) and/or aliphatic polyester carbonate (B). This injection-molded article has a flexural strength of 30 MPa or more and an Izod impact strength of 3 kJ/m2 or more, and it is used as helmet headgear.

    摘要翻译： 本发明提供了具有实际上足够的耐热温度，成型性，耐热性，耐溶剂性和高机械强度的聚乳酸和脂肪族聚酯碳酸酯的树脂组合物及其成型品。 在树脂组合物中，维卡软化点为60℃以上，拉伸弹性模量为0.9GPa以上，挠曲模量为0.6GPa以上，聚乳酸（A）和脂肪族 聚酯碳酸酯（B）按重量比（A）/（B）计为95/5〜5/95。 此外，本发明提供了具有机械特性和耐冲击性改善以及优异的处置性能的生物降解性注射成型制品，特别是具有足以使其可用作头盔用头盔材料的强度。 生物降解性注射成型品的耐冲击性优异，主要包括聚乳酸（A）和脂肪族聚酯（E）和/或脂肪族聚酯碳酸酯（B）。 该注射成型品的弯曲强度为30MPa以上，Izod冲击强度为3kJ / m 2以上，用作头盔头饰。

    Aliphatic polyester carbonate and process for producing the same
    2.
    发明授权
    Aliphatic polyester carbonate and process for producing the same 失效
    脂肪族聚酯碳酸酯及其制造方法

    公开(公告)号：US5654380A

    公开(公告)日：1997-08-05

    申请号：US443485

    申请日：1995-05-18

    申请人： Ryozo Kawai ,  Mitsuo Miura ,  Kyohei Takakuwa ,  Yoshinori Isahaya ,  Takayasu Fujimori ,  Jiro Suito ,  Makoto Nakamura

    发明人： Ryozo Kawai ,  Mitsuo Miura ,  Kyohei Takakuwa ,  Yoshinori Isahaya ,  Takayasu Fujimori ,  Jiro Suito ,  Makoto Nakamura

    IPC分类号： C08G63/64 ,  C08F20/00

    CPC分类号： C08G63/64 ,  C08G2230/00

    摘要： Provided are an aliphatic polyester carbonate having biodegradability and having a content of carbonate unit of at least 5 mol %, a weight-average molecular weight of at least 100,000, a melt viscosity of 2,000-50,000 poises at 190.degree. C. and under a load of 60 kg and a melting point of 70.degree.-180.degree. C., and a process for producing said aliphatic polyester carbonate which comprises reacting an aliphatic dihydroxy compound with an aliphatic dibasic acid in the presence of an ester exchange catalyst to obtain an oligomer and then reacting the oligomer with a diaryl carbonate in the presence of the ester exchange catalyst. A phosphorus compound may be added to the aliphatic polyester carbonate for the purpose of stabilization.

    摘要翻译： 本发明提供一种脂肪族聚酯碳酸酯，其具有生物降解性，碳酸酯单元的含量为至少5摩尔％，重均分子量至少为100,000，190℃时的熔融粘度为2,000-50,000泊，负荷 60kg，熔点为70-180℃，以及一种制备所述脂族聚酯碳酸酯的方法，该方法包括在酯交换催化剂存在下使脂族二羟基化合物与脂肪族二元酸反应得到低聚物和 然后在酯交换催化剂存在下使低聚物与碳酸二芳基酯反应。 为了稳定化，可将磷化合物加入脂族聚酯碳酸酯中。

    Aromatic-aliphatic copolycarbonate and process for producing the same
    4.
    发明授权
    Aromatic-aliphatic copolycarbonate and process for producing the same 有权
    芳香族 - 脂肪族共聚碳酸酯及其制造方法

    公开(公告)号：US06359103B1

    公开(公告)日：2002-03-19

    申请号：US09639985

    申请日：2000-08-17

    申请人： Satoshi Nagai ,  Osamu Kondo ,  Kyohei Takakuwa ,  Yoshinori Isahaya ,  Takayasu Fujimori

    发明人： Satoshi Nagai ,  Osamu Kondo ,  Kyohei Takakuwa ,  Yoshinori Isahaya ,  Takayasu Fujimori

    IPC分类号： C08G6416

    CPC分类号： C08G64/1608 ,  C08G64/30

    摘要： An aromatic-aliphatic copolycarbonate and a process for producing the same which comprises polycondensation of an aromatic dihydroxy compound, such as 1,1-bis(4-hydroxyphenyl)cyclohexane, tricyclo(5.2.1.02,6)decanedimethanol, and a carbonic acid diester in a molten state under heating, wherein the carbonic acid diester has a chlorine content of 20 ppm or lower. The copolycarbonate has improved refractive index, balance of dispersion, and photoelastic constant while retaining high impact resistance, high heat resistance, and excellent hue.

    摘要翻译： 芳香族 - 脂肪族共聚碳酸酯及其制造方法，其包括芳族二羟基化合物如1,1-双（4-羟基苯基）环己烷，三环（5.2.1.0 2,6）癸烷二甲醇和碳酸二酯的缩聚 在加热下处于熔融状态，其中碳酸二酯的氯含量为20ppm以下。 共聚碳酸酯具有改善的折射率，平衡分散和光弹性常数，同时保持高耐冲击性，高耐热性和优异的色调。

    Aliphatic polyester carbonate and process for producing the aliphatic polyester carbonate
    5.
    发明授权
    Aliphatic polyester carbonate and process for producing the aliphatic polyester carbonate 失效
    脂肪族聚酯碳酸酯及其制造方法

    公开(公告)号：US5880224A

    公开(公告)日：1999-03-09

    申请号：US901468

    申请日：1997-07-28

    申请人： Mitsuo Miura ,  Kyohei Takakuwa ,  Takayasu Fujimori ,  Maki Ito

    发明人： Mitsuo Miura ,  Kyohei Takakuwa ,  Takayasu Fujimori ,  Maki Ito

    IPC分类号： C08G63/64 ,  C08G63/78 ,  C08G63/88 ,  C08K3/32 ,  C08L101/16

    CPC分类号： C08G63/64 ,  C08K3/32

    摘要： A process for producing an aliphatic polyester carbonate which comprises reacting (1) an aliphatic dicarboxylic acid compound containing succinic acid as a main component, (2) an aliphatic dihydroxy compound containing 1,4-butanediol as a main component, and (3) (a) a polyhydric alcohol having 3 or more hydroxyl groups in a molecule, (b) a polybasic carboxylic acid compound having 3 or more carboxyl groups in a molecule, or (c) a polybasic carboxylic acid having one or more hydroxyl groups in a molecule to obtain an aliphatic polyester oligomer and reacting the obtained aliphatic polyester oligomer and a carbonate compound, wherein the aliphatic polyester carbonate has a melt tension of 1.5 g or more at 190.degree. C. and at an extrusion rate of 10 mm/minute; a process for producing an aliphatic polyester carbonate which comprises reacting above components (1) and (2) to obtain an aliphatic polyester oligomer and reacting the obtained aliphatic polyester oligomer, above component (3) (a), and a carbonate compound, wherein the aliphatic polyester carbonate has the same properties; and aliphatic polyester carbonates produced by these processes. The aliphatic polyester carbonate is branched and biodegradable, has a high molecular weight, and shows higher melt tension and more excellent molding property in comparison with conventional linear aliphatic polyester carbonates in molding of the polyester carbonate to prepare films, sheets, fibers, and other molded products.

    摘要翻译： 一种脂肪族聚酯碳酸酯的制造方法，其特征在于，使（1）以琥珀酸为主要成分的脂肪族二羧酸化合物与（2）以1,4-丁二醇为主要成分的脂肪族二羟基化合物和（3）（ a）分子中具有3个以上羟基的多元醇，（b）分子中具有3个以上羧基的多元羧酸化合物，或（c）分子中具有一个以上羟基的多元羧酸 得到脂肪族聚酯低聚物，使所得到的脂肪族聚酯低聚物和碳酸酯化合物反应，其中脂族聚酯碳酸酯在190℃，挤出速度为10毫米/分钟时的熔融张力为1.5克以上。 一种脂肪族聚酯碳酸酯的制造方法，其特征在于，使上述成分（1）和（2）反应，得到脂肪族聚酯低聚物，使得到的脂肪族聚酯低聚物，上述成分（3）（a）和碳酸酯化合物反应， 脂肪族聚酯碳酸酯具有相同的性质; 和通过这些方法生产的脂肪族聚酯碳酸酯。 与聚酯碳酸酯成型时的常规直链脂族聚酯碳酸酯相比，脂肪族聚酯碳酸酯是分支和可生物降解的，具有高分子量，并且显示出更高的熔体张力和更优异的成型性能，以制备膜，片，纤维等成型 产品。

    PROCESS FOR PRODUCING MELANIN, MELANIN PRODUCED BY THE PROCESS, FUNCTIONAL FILM CONTAINING THE MELANIN, AND PROCESS FOR PRODUCING THE SAME
    6.
    发明申请
    PROCESS FOR PRODUCING MELANIN, MELANIN PRODUCED BY THE PROCESS, FUNCTIONAL FILM CONTAINING THE MELANIN, AND PROCESS FOR PRODUCING THE SAME 审中-公开
    生产MELANIN的方法，由该方法生产的MELANIN，含有MELANIN的功能膜及其生产方法

    公开(公告)号：US20090317616A1

    公开(公告)日：2009-12-24

    申请号：US11995621

    申请日：2006-07-14

    申请人： Ryozo Kawai ,  Yoshiyuki Aoki ,  Eiko Aoki ,  Kyohei Takakuwa ,  Masahiko Namiki

    发明人： Ryozo Kawai ,  Yoshiyuki Aoki ,  Eiko Aoki ,  Kyohei Takakuwa ,  Masahiko Namiki

    IPC分类号： C08L29/04 ,  C04B14/00

    CPC分类号： C09B59/00 ,  C09B67/0097 ,  C09B69/104 ,  G02B5/208 ,  G02B5/3033

    摘要： The present invention provides a melanin that is excellent in coloring a functional film, and in reproducibility and stability during storage, and a method for its production. Also, the invention provides a functional film containing a melanin and its method for production. Specifically, it provides a functional film containing a melanin of which the alteration is improved and which is excellent in the property for protecting eyes from ultraviolet rays, and in its method for production.The method for producing a melanin of the present invention, comprises, at least, under controlled conditions, a step for an oxidative reaction wherein a melanin precursor is continuously oxidized while the mole ratio of the melanin precursor relative to the oxidative agent is maintained at a constant ratio, and a step for precipitation wherein a melanin is precipitated by acidifying a reaction solution after the step for an oxidative reaction.

    摘要翻译： 本发明提供了对功能性膜着色，保存时的再现性和稳定性优异的黑色素及其制造方法。 另外，本发明提供含有黑色素的功能性膜及其制造方法。 具体地说，提供了含有黑色素的功能性膜，其变化得到改善，并且在保护眼睛免受紫外线的性质方面优异，并且在其生产方法中。 本发明的黑色素的制备方法至少在受控条件下，包括氧化反应的步骤，其中黑色素前体被连续氧化，而黑色素前体相对于氧化剂的摩尔比保持在 恒定比例和沉淀步骤，其中通过在氧化反应步骤之后使反应溶液酸化而使黑色素沉淀。