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74 条记录 (耗时 0.014 秒)

    Polymer having a fluorine-containing end group and production of the same
    12.
    发明公开
    Polymer having a fluorine-containing end group and production of the same 失效
    具有含氟末端基团及其制备聚合物。

    公开(公告)号：EP0129143A2

    公开(公告)日：1984-12-27

    申请号：EP84106429.8

    申请日：1984-06-05

    申请人： KURARAY CO., LTD.

    发明人： Sato, Toshiaki ,  Yamauchi, Junnosuke ,  Okaya, Takuji

    IPC分类号： C08F2/38 ,  C08F18/08 ,  C08F8/12

    CPC分类号： C08F2/38 ,  C08F8/12 ,  C08F2810/40 ,  C08J5/18 ,  C08J2327/12 ,  C08F8/34 ,  C08F118/08

    摘要： A polymer having a fluorine-containing end group which is produced by polymerizing a monomer capable of radical polymerization in the presence of a fluorine-containing thiol; a vinyl ester polymer having a fluorine-containing end group which is produced by polymerizing vinyl ester in the presence of a fluorine-containing thiol; and vinyl alcohol polymer having a fluorine-containing end group which is produced by saponifying the said vinyl ester polymer; and processes for producing the same are provided.
    The polymers of this invention are superior in water repellency, oil repellency, heat resistance, chemical resistance, and surface activity which are characteristic of fluorocarbon compounds, and are expected to find use in various application areas.

    Process for producing a polyvinyl ester and polyvinyl alcohol having a high degree of polymerization
    16.
    发明公开
    Process for producing a polyvinyl ester and polyvinyl alcohol having a high degree of polymerization 失效
    生产高聚合度的聚乙烯醇和聚乙烯醇的方法

    公开(公告)号：EP0255137A3

    公开(公告)日：1988-09-21

    申请号：EP87111054

    申请日：1987-07-30

    申请人： KURARAY Co. LTD.

    发明人： Sato, Toshiaki ,  Yuki, Ken ,  Yamauchi, Junnosuke ,  Okaya, Takuji

    IPC分类号： C08F18/04 ,  C08F08/12

    CPC分类号： C08F18/04 ,  C08F8/12 ,  C08F118/08

    摘要： Disclosed herein is a new process for producing polyvi­nyl ester having a high degree of polymerization having an intrinsic viscosity not less than 1.5 dl/g, preferably not less than 2.2 dl/g, and most preferably higher than 3.2 dl/g, said process comprising subjecting vinyl ester monomer to low-temperature emulsion polymerization under specific conditions. Disclosed also herein is a new process for producing polyvinyl alcohol having a high degree of polymerization having an intrinsic viscosity not less than 1.5 dl/g, pref­erably not less than 2.2 dl/g, and most preferably higher than 3.2 dl/g, said process comprising saponifying in the usual way the polyvinyl ester obtained by low-temperature emulsion polymerization under specific conditions.

    Coating material
    17.
    发明公开
    Coating material 失效
    涂料

    公开(公告)号：EP0164134A3

    公开(公告)日：1988-05-18

    申请号：EP85107081

    申请日：1985-06-07

    申请人： KURARAY CO., LTD.

    发明人： Okaya, Takuji ,  Tanaka, Yoshinari ,  Yonezu, Kiyoshi ,  Aoyama, Akimasa ,  Moritani, Takeshi

    IPC分类号： C09D03/74 ,  C08L31/04 ,  C08L23/00 ,  C08L29/04

    CPC分类号： C09D129/04 ,  C09D123/08

    摘要： There is provided a coating material made of a saponification product of a modified ethylene-vinyl acetate copolymer containing a cross-linkable olefinically unsaturated monomer. The saponification product is characterized by its intrinsic viscosity not greater than 0.7 dl/g which is measured at 20°C using phenol containing 15 wt% of water as a solvent. This polymer is readily soluble in solvents, and the resulting solution can have concentration as high as 20 to 50 wt% and provide coating film which is as strong as that obtained from the conventional EVOH having a high degree of polymerization.