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    POLYURETHANE CURABLE COMPOSITION CONTAINING POLYMER FINE PARTICLES EXCELLENT IN MECHANICAL STRENGTH
    11.
    发明申请
    POLYURETHANE CURABLE COMPOSITION CONTAINING POLYMER FINE PARTICLES EXCELLENT IN MECHANICAL STRENGTH 审中-公开

    公开(公告)号：US20180371238A1

    公开(公告)日：2018-12-27

    申请号：US16061193

    申请日：2016-12-08

    Applicant: Kaneka Corporation

    Inventor： Toshihiko Okamoto

    IPC: C08L75/04 ,  C08G18/08 ,  C08G18/42 ,  C08L33/08 ,  C08L33/10

    Abstract: The object of the present invention is to provide a curable composition for forming a cured product having high tensile strength and high elongation. A polyurethane curable composition of the present invention contains a polyol (A) and a polyisocyanate (B) as an essential component, wherein the composition contains polymer fine particles (C) having a core-shell structure including at least two layers of a core layer and a shell layer, the polymer fine particles (C) are contained in an amount of 1 to 150 parts by mass per 100 parts by mass of a total amount of the polyol (A) and the polyisocyanate (B), the core layer has a glass transition temperature (Tg) of more than 0° C. as calculated by the following numerical formula (1), a cured product formed by the curable composition has an elongation of more than 47% at a maximum tensile stress, 1/Tg=Σ(Mi/Tgi)  (1) wherein Mi represents a weight fraction of a non-crosslinking monomer i constituting the core layer of the polymer fine particles (C), Tgi represents a glass transition temperature (K) of a homopolymer polymerized with the non-crosslinking monomer i, and i represents an integer of 1 or more.

    WATERPROOF COATING MATERIAL AND BUILDING ROOF HAVING COATING FILM FORMED THEREFROM
    12.
    发明申请
    WATERPROOF COATING MATERIAL AND BUILDING ROOF HAVING COATING FILM FORMED THEREFROM 审中-公开
    防水涂料材料和建筑物屋顶涂有膜

    公开(公告)号：US20150125684A1

    公开(公告)日：2015-05-07

    申请号：US14366619

    申请日：2012-12-19

    Applicant: KANEKA CORPORATION ,  KANEKA NORTH AMERICA LLC.

    Inventor： Katsuhiro Ando ,  Toshihiko Okamoto

    IPC: C09D171/02

    CPC classification number: C09D171/02 ,  C08G65/336 ,  C08L71/02 ,  C08L33/06

    Abstract: Provided are a waterproof coating material and a roof having a coating film formed therefrom which have low VOC content, good film curability under low-temperature/high-humidity conditions, high stain resistance, and low water absorbency. The coating material comprises: (A) 100 parts by weight of a polyoxyalkylene polymer (a1) and/or a vinylic polymer (a2), the polymers each containing a reactive silyl group of formula (1): —SiR13-aXa (1) wherein each R1 independently represents a C1-C20 alkyl, C6-C20 aryl, or C7-C20 aralkyl group, or a triorganosiloxy group of (R′)3SiO— where R's each independently represent a C1-C20 substituted or unsubstituted hydrocarbon group; each X independently represents a hydroxy or hydrolyzable group; and a represents 1, 2 or 3; and (B) 0.1-20 parts by weight of at least one compound including a compound (b3) obtained by partial condensation of silyl groups of an aminosilane alone or of a combination of an aminosilane and another alkoxysilane compound.

    Abstract translation: 提供一种防水涂料和具有由其形成的涂膜的屋顶，其具有低VOC含量，在低温/高湿度条件下具有良好的膜固化性，耐污染性和低吸水性。 涂料包括：（A）100重量份聚氧化烯聚合物（a1）和/或乙烯基聚合物（a2），各自含有式（1）的反应性甲硅烷基的聚合物：-SiR13-aXa（1） 其中每个R 1独立地表示C 1 -C 20烷基，C 6 -C 20芳基或C 7 -C 20芳烷基，或（R'）3 SiO-的三有机甲硅烷氧基，其中R各自独立地表示C1-C20取代或未取代的烃基; 每个X独立地表示羟基或可水解基团; 和a表示1,2或3; 和（B）0.1-20重量份的至少一种化合物，其包括通过单独的氨基硅烷的甲硅烷基或氨基硅烷和另一烷氧基硅烷化合物的组合部分缩合得到的化合物（b3）。

    Polyurethane curable composition containing polymer fine particles excellent in mechanical strength
    13.
    发明授权
    Polyurethane curable composition containing polymer fine particles excellent in mechanical strength 有权

    公开(公告)号：US10920073B2

    公开(公告)日：2021-02-16

    申请号：US16061193

    申请日：2016-12-08

    Applicant: Kaneka Corporation

    Inventor： Toshihiko Okamoto

    IPC: C08L75/08 ,  C08G18/06 ,  C08L75/04 ,  C08G18/48 ,  C08G18/32 ,  C08G18/66 ,  C09J175/08 ,  C08G18/76 ,  C08G18/63 ,  C08G18/08 ,  C08G18/42 ,  C08L33/08 ,  C08L33/10 ,  C09J11/08

    Abstract: The object of the present invention is to provide a curable composition for forming a cured product having high tensile strength and high elongation. A polyurethane curable composition of the present invention contains a polyol (A) and a polyisocyanate (B) as an essential component, wherein the composition contains polymer fine particles (C) having a core-shell structure including at least two layers of a core layer and a shell layer, the polymer fine particles (C) are contained in an amount of 1 to 150 parts by mass per 100 parts by mass of a total amount of the polyol (A) and the polyisocyanate (B), the core layer has a glass transition temperature (Tg) of more than 0° C. as calculated by the following numerical formula (1), a cured product formed by the curable composition has an elongation of more than 47% at a maximum tensile stress, 1/Tg=Σ(Mi/Tgi)  (1) wherein Mi represents a weight fraction of a non-crosslinking monomer i constituting the core layer of the polymer fine particles (C), Tgi represents a glass transition temperature (K) of a homopolymer polymerized with the non-crosslinking monomer i, and i represents an integer of 1 or more.

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