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17 条记录 (耗时 0.015 秒)

    VINYL RESIN PRODUCTION METHOD
    2.
    发明授权
    VINYL RESIN PRODUCTION METHOD 有权

    公开(公告)号：EP3130610B1

    公开(公告)日：2018-12-05

    申请号：EP15776953.0

    申请日：2015-04-08

    申请人： Kuraray Co., Ltd.

    发明人： FUKUHARA, Tadahito ,  KUMAKI, Yosuke ,  MICHEL, Samuel ,  HARTMANN, Dirk

    IPC分类号： C08F2/20 ,  C08F14/00

    CPC分类号： C08F114/06 ,  C08F2/18 ,  C08F2/20 ,  C08F14/06 ,  C08F2400/00

    摘要： A dispersion stabilizer in the present invention contains an aqueous emulsion (a) obtained by dispersing a polymer (A) having an ethylenically unsaturated monomer unit in an aqueous medium, a PVA (B) having a degree of saponification of 65 mol% or more and less than 82 mol% and a viscosity-average degree of polymerization of 250 or more and less than 1500, and a PVA (C) having a degree of saponification of 82 mol% or more and less than 98 mol% and a viscosity-average degree of polymerization of 1500 or more and less than 4000. The dispersion stabilizer contains: 7 to 51 mass% of the polymer (A); 40 to 84 mass% of the PVA (B); and 9 to 53 mass% of the PVA (C), with respect to a total amount of the polymer (A), the PVA (B), and the PVA (C). A vinyl resin satisfying required performance can be obtained using the dispersion stabilizer.

    VINYL ALCOHOL POLYMER AND USE THEREOF
    5.
    发明公开
    VINYL ALCOHOL POLYMER AND USE THEREOF 审中-公开
    乙烯醇聚合物及其用途

    公开(公告)号：EP3208286A1

    公开(公告)日：2017-08-23

    申请号：EP15851153.5

    申请日：2015-10-16

    申请人： Kuraray Co., Ltd.

    发明人： KUMAKI, Yosuke ,  YAMAMOTO, Ayumu ,  TANIDA, Tatsuya

    IPC分类号： C08F16/06 ,  C09D129/04 ,  D21H19/20 ,  D21H27/00

    CPC分类号： C08F216/06 ,  C08F16/06 ,  C09D129/04 ,  C09J7/201 ,  C09J7/21 ,  C09J2400/28 ,  C09J2429/005 ,  C09J2483/00 ,  D21H19/20 ,  D21H27/00 ,  D21H27/001

    摘要： There is provided a vinyl alcohol-based polymer having an ethylenic double bond with a saponification degree of 70 mol% or more, wherein the vinyl alcohol-based polymer is water-soluble; a molar ratio of the ethylenic double bond to the total of vinyl alcohol units and vinyl acetate units is 0.05/100 to 2/100; and a limiting viscosity [η] and a weight-average molecular weight Mw of a vinyl ester-based polymer which is produced by esterifying the vinyl alcohol-based polymer satisfy the following formulas (1) and (2). 4.7 ≤ logMw ≤ 6.3 0.60 log η + 3.75 / logMw 0.69

    摘要翻译： 提供乙烯醇系聚合物为具有乙烯性双键的皂化度为70摩尔％以上的乙烯醇系聚合物，其中乙烯醇系聚合物为水溶性， 烯属双键与乙烯醇单元和乙酸乙烯酯单元的总量的摩尔比为0.05 / 100至2/100; 并且通过酯化乙烯醇类聚合物制备的乙烯基酯类聚合物的特性粘度[η]和重均分子量Mw满足下式（1）和（2）。 4.7≤logMw≤6.30.60

    VINYL RESIN PRODUCTION METHOD
    6.
    发明公开
    VINYL RESIN PRODUCTION METHOD 有权
    VINYLHARZHERSTELLUNGSVERFAHREN

    公开(公告)号：EP3130610A1

    公开(公告)日：2017-02-15

    申请号：EP15776953.0

    申请日：2015-04-08

    申请人： Kuraray Co., Ltd. ,  Kuraray Europe GmbH

    发明人： FUKUHARA, Tadahito ,  KUMAKI, Yosuke ,  MICHEL, Samuel ,  HARTMANN, Dirk

    IPC分类号： C08F2/20 ,  C08F14/00

    CPC分类号： C08F114/06 ,  C08F2/18 ,  C08F2/20 ,  C08F14/06 ,  C08F2400/00

    摘要： A dispersion stabilizer in the present invention contains an aqueous emulsion (a) obtained by dispersing a polymer (A) having an ethylenically unsaturated monomer unit in an aqueous medium, a PVA (B) having a degree of saponification of 65 mol% or more and less than 82 mol% and a viscosity-average degree of polymerization of 250 or more and less than 1500, and a PVA (C) having a degree of saponification of 82 mol% or more and less than 98 mol% and a viscosity-average degree of polymerization of 1500 or more and less than 4000. The dispersion stabilizer contains: 7 to 51 mass% of the polymer (A); 40 to 84 mass% of the PVA (B); and 9 to 53 mass% of the PVA (C), with respect to a total amount of the polymer (A), the PVA (B), and the PVA (C). A vinyl resin satisfying required performance can be obtained using the dispersion stabilizer.

    摘要翻译： 本发明的分散稳定剂含有通过将具有烯键式不饱和单体单元的聚合物（A）分散在水性介质中而得到的水性乳液（a），皂化度为65摩尔％以上的PVA（B）和 粘度平均聚合度为250以上且小于1500的PVA（C）和皂化度为82摩尔％以上且小于98摩尔％的PVA（C），粘度平均值 聚合度为1500以上且小于4000.分散稳定剂含有：7〜51质量％的聚合物（A）; 40〜84质量％的PVA（B）; 相对于聚合物（A），PVA（B）和PVA（C）的总量，为9〜53质量％的PVA（C）。 使用分散稳定剂可以得到满足所需性能的乙烯基树脂。

    DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION, AND MANUFACTURING METHOD FOR VINYL RESIN
    8.
    发明公开
    DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION, AND MANUFACTURING METHOD FOR VINYL RESIN 审中-公开
    分散稳定剂用于生产乙烯树脂悬挂和过程

    公开(公告)号：EP3031830A1

    公开(公告)日：2016-06-15

    申请号：EP14835372.5

    申请日：2014-08-06

    申请人： Kuraray Co., Ltd.

    发明人： FUKUHARA, Tadahito ,  KUMAKI, Yosuke

    IPC分类号： C08F2/20 ,  C08F8/12 ,  C08F18/04

    CPC分类号： C08F2/20 ,  B01F17/0028 ,  C08F2/30 ,  C08F8/12 ,  C08F18/04 ,  C08F114/06 ,  C08L29/04 ,  C08L2201/54

    摘要： The present invention provides an easy-to-handle dispersion stabilizer for suspension polymerization that meets the following requirements: even if the amount of the dispersion stabilizer for suspension polymerization used for suspension polymerization of a vinyl compound is small, the resulting vinyl resin has high plasticizer absorptivity and is easy to work with; it is easy to remove residual monomer components from the resulting vinyl resin; and the resulting vinyl resin contains fewer coarse particles. The present invention relates to a dispersion stabilizer for suspension polymerization in the form of an aqueous liquid. This dispersion stabilizer contains, at a concentration of 20 mass% or more and 50 mass% or less, a PVA having a degree of saponification of 35 mol% or more and 65 mol% or less, a viscosity average degree of polymerization of 100 or more and 480 or less, a terminal aliphatic hydrocarbon group having 6 to 12 carbon atoms, and a block character of residual ester groups of 0.5 or more. In this dispersion stabilizer, the viscosity average degree of polymerization (P) of the PVA and the degree of modification (S) of the aliphatic hydrocarbon group satisfies 50 ≤ SxP/1.880 ≤ 100.

    VINYL ALCOHOL COPOLYMER AND METHOD FOR PRODUCING SAME
    9.
    发明公开
    VINYL ALCOHOL COPOLYMER AND METHOD FOR PRODUCING SAME 有权
    乙烯醇共聚物及其制备方法

    公开(公告)号：EP2987810A1

    公开(公告)日：2016-02-24

    申请号：EP14785924.3

    申请日：2014-04-17

    申请人： Kuraray Co., Ltd.

    发明人： KUMAKI, Yosuke ,  TANIDA, Tatsuya

    IPC分类号： C08F8/12 ,  C08F216/06

    CPC分类号： C08F218/08 ,  C08F2/005 ,  C08F8/12 ,  C08F14/06 ,  C08F114/06 ,  C08F216/06 ,  C08F290/062 ,  C08F2800/10 ,  C08J3/00 ,  C08J2331/04 ,  C08F216/125 ,  C08F236/20 ,  C08F2/20

    摘要： Provided is a vinyl alcohol-based copolymer, obtained by saponifying a copolymer of vinyl acetate and a polyfunctional monomer, wherein the polyfunctional monomer contains two or more ethylenic double bonds in its molecule, the vinyl alcohol-based copolymer has a side chain containing an ethylenic double bond and a molar ratio (d) of the ethylenic double bond to a total of vinyl alcohol units and vinyl acetate units is from 0.05/100 to 2/100, and the vinyl alcohol-based copolymer is water soluble.

    摘要翻译： 本发明提供一种乙烯醇系共聚物，其是通过皂化乙酸乙烯酯与多官能单体的共聚物而得到的，其中，该多官能单体的分子内具有2个以上的乙烯性双键，该乙烯醇系共聚物具有含乙烯性 双键，并且烯属双键与乙烯醇单元和乙酸乙烯酯单元的总量的摩尔比（d）为0.05 / 100-2 / 100，乙烯醇基共聚物为水溶性的。