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    Method for producing alkenyl ether polymer
    1.
    发明授权
    Method for producing alkenyl ether polymer 有权

    公开(公告)号：US10370478B2

    公开(公告)日：2019-08-06

    申请号：US15572384

    申请日：2016-05-02

    申请人： Maruzen Petrochemical Co., Ltd.

    发明人： Shinji Sugihara

    IPC分类号： C08F16/26 ,  C08F293/00 ,  C08F18/08 ,  C08F4/40 ,  C08F216/14 ,  C08F218/08

    摘要： To provide a method for producing a polymer that is capable of providing an alkenyl ether polymer having a molecular weight, a molecular weight distribution, and a composition that are controlled, with a vinyl ether having a hydroxyl group, and a block copolymer thereof. To provide a polymer obtained by the method as a macro chain transfer agent capable of performing reversible addition fragmentation chain transfer polymerization. Livingness can be imparted to radical polymerization of a hydroxyl group-containing vinyl ether by performing the radical polymerization in the presence of a particular RAFT agent and a radical polymerization initiator, and a block copolymer with another radically polymerizable vinyl monomer can be obtained by using the resulting living polymer as a macro chain transfer agent capable of performing reversible addition fragmentation chain transfer polymerization.

    METHOD FOR PRODUCING HOMOPOLYMER OR RANDOM COPOLYMER OF HYDROXYL GROUP-CONTAINING VINYL ETHER
    2.
    发明申请
    METHOD FOR PRODUCING HOMOPOLYMER OR RANDOM COPOLYMER OF HYDROXYL GROUP-CONTAINING VINYL ETHER 有权
    含羟基乙烯基醚的共聚单体或随机共聚物的制备方法

    公开(公告)号：US20150005467A1

    公开(公告)日：2015-01-01

    申请号：US14378155

    申请日：2013-02-04

    申请人： MARUZEN PETROCHEMICAL CO., LTD.

    发明人： Shinji Sugihara ,  Tomohiro Masukawa

    IPC分类号： C08F116/14 ,  C08F216/20 ,  C08F216/14

    CPC分类号： C08F116/14 ,  C08F16/26 ,  C08F216/1416 ,  C08F216/20

    摘要： [Object] To provide a method of producing a homopolymer or random copolymer of hydroxyl group-containing vinyl ether simply and conveniently as well as efficiently.[Means for solving problem] A method of producing a homopolymer or random copolymer of hydroxyl group-containing vinyl ether according to the present invention comprises the step of polymerizing a monomer component comprising at least one hydroxyl group-containing vinyl ether using an oil-soluble radical polymerization initiator in the absence or presence of a solvent.

    摘要翻译： 提供简单，方便，有效地制备含羟基的乙烯基醚的均聚物或无规共聚物的方法。 解决问题的手段本发明的含有羟基的乙烯基醚的均聚物或无规共聚物的制造方法包括使用油溶性聚合含有至少一个含羟基的乙烯基醚的单体成分的工序 在不存在或存在溶剂的情况下自由基聚合引发剂。

    Alkenyl ether-vinyl ester copolymer
    6.
    发明授权
    Alkenyl ether-vinyl ester copolymer 有权

    公开(公告)号：US10570232B2

    公开(公告)日：2020-02-25

    申请号：US15570807

    申请日：2016-05-02

    申请人： Maruzen Petrochemical Co., Ltd.

    发明人： Shinji Sugihara

    IPC分类号： C08F218/08 ,  C08F216/14

    摘要： An alkenyl ether-vinyl ester copolymer contains a repeating unit derived from a hydroxyl group-containing alkenyl ether represented by the following formula (1), and a repeating unit derived from a vinyl ester represented by the following formula (2): where R1, R2, and R3 each independently represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms; R4 represents a linear or branched alkylene group having from 2 to 4 carbon atoms; R5 represents an acyl group having from 1 to 20 carbon atoms; and p represents an integer of from 1 to 3. The alkenyl ether-vinyl ester copolymer exhibits temperature responsiveness showing a change in hydrophilicity and hydrophobicity at a prescribed temperature as a critical point and has a lower critical solution temperature to water of from 1° C. to 99° C.