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    Process for production of urethane resin and adhesive agent
    7.
    发明授权
    Process for production of urethane resin and adhesive agent 有权
    生产聚氨酯树脂和粘合剂的方法

    公开(公告)号：US07834104B2

    公开(公告)日：2010-11-16

    申请号：US12189268

    申请日：2008-08-11

    申请人： Makito Nakamura ,  Hitoshi Shimoma ,  Hisashi Sato ,  Yasuhito Adachi

    发明人： Makito Nakamura ,  Hitoshi Shimoma ,  Hisashi Sato ,  Yasuhito Adachi

    IPC分类号： C08G18/10 ,  C08G18/32 ,  C08G18/38 ,  C08G18/66

    CPC分类号： C09J175/04 ,  C08G18/10 ,  C08G18/3281 ,  C08G2170/40 ,  C08G18/3206 ,  C08G18/8022

    摘要： An object of the invention is to provide a process for urethane resin production in which the molecular weight of the urethane resin can be easily controlled regardless of the kind of polyisocyanate compound and which can yield a urethane resin for use as a removable pressure-sensitive adhesive usable in extensive applications ranging from a strong-tack region to a slight-tack region. The process for urethane resin production of the invention is a process for producing a urethane resin which comprises reacting a polyol with a first polyisocyanate compound in such a proportion that isocyanate groups are present in excess to thereby obtain an isocyanate-group-terminated prepolymer, subsequently reacting the isocyanate-group-terminated prepolymer with a chain extender, and further reacting the resultant polymer with a chain terminator, wherein the chain extender comprises a polyfunctional compound (X) having three or more functional groups reactive with an isocyanate group, wherein two of the functional groups of the polyfunctional compound (X) are primary hydroxyl groups and the remaining functional group(s) is secondary hydroxyl or tertiary hydroxyl group(s).

    摘要翻译： 本发明的目的是提供一种聚氨酯树脂生产方法，其中可以容易地控制聚氨酯树脂的分子量，而不管多异氰酸酯化合物的种类如何，并且可以产生用作可去除的压敏粘合剂的聚氨酯树脂 可用于从强粘性区域到轻微粘性区域的广泛应用。 本发明的聚氨酯树脂生产方法是一种制备聚氨酯树脂的方法，其包括使多元醇与第一多异氰酸酯化合物以过量存在的异氰酸酯基团的比例反应，随后得到异氰酸酯基封端的预聚物 使异氰酸酯基封端的预聚物与扩链剂反应，并进一步使所得聚合物与链终止剂反应，其中扩链剂包含具有三个或更多个与异氰酸酯基团反应的官能团的多官能化合物（X），其中两个 多官能化合物（X）的官能团是伯羟基，剩余的官能团是仲羟基或叔羟基。

    PROCESS FOR PRODUCTION OF URETHANE RESIN AND ADHESIVE AGENT
    9.
    发明申请
    PROCESS FOR PRODUCTION OF URETHANE RESIN AND ADHESIVE AGENT 有权
    尿素树脂和胶粘剂生产工艺

    公开(公告)号：US20080312386A1

    公开(公告)日：2008-12-18

    申请号：US12189268

    申请日：2008-08-11

    申请人： Makito NAKAMURA ,  Hitoshi Shimoma ,  Hisashi Sato ,  Yasuhito Adachi

    发明人： Makito NAKAMURA ,  Hitoshi Shimoma ,  Hisashi Sato ,  Yasuhito Adachi

    IPC分类号： C08L75/04 ,  C08G71/04

    CPC分类号： C09J175/04 ,  C08G18/10 ,  C08G18/3281 ,  C08G2170/40 ,  C08G18/3206 ,  C08G18/8022

    摘要： An object of the invention is to provide a process for urethane resin production in which the molecular weight of the urethane resin can be easily controlled regardless of the kind of polyisocyanate compound and which can yield a urethane resin for use as a removable pressure-sensitive adhesive usable in extensive applications ranging from a strong-tack region to a slight-tack region. The process for urethane resin production of the invention is a process for producing a urethane resin which comprises reacting a polyol with a first polyisocyanate compound in such a proportion that isocyanate groups are present in excess to thereby obtain an isocyanate-group-terminated prepolymer, subsequently reacting the isocyanate-group-terminated prepolymer with a chain extender, and further reacting the resultant polymer with a chain terminator, wherein the chain extender comprises a polyfunctional compound (X) having three or more functional groups reactive with an isocyanate group, wherein two of the functional groups of the polyfunctional compound (X) are primary hydroxyl groups and the remaining functional group(s) is secondary hydroxyl or tertiary hydroxyl group(s).

    摘要翻译： 本发明的目的是提供一种聚氨酯树脂生产方法，其中可以容易地控制聚氨酯树脂的分子量，而不管多异氰酸酯化合物的种类如何，并且可以产生用作可去除的压敏粘合剂的聚氨酯树脂 可用于从强粘性区域到轻微粘性区域的广泛应用。 本发明的聚氨酯树脂生产方法是一种制备聚氨酯树脂的方法，其包括使多元醇与第一多异氰酸酯化合物以过量存在的异氰酸酯基团的比例反应，随后得到异氰酸酯基封端的预聚物 使异氰酸酯基封端的预聚物与扩链剂反应，并进一步使所得聚合物与链终止剂反应，其中扩链剂包含具有三个或更多个与异氰酸酯基团反应的官能团的多官能化合物（X），其中两个 多官能化合物（X）的官能团是伯羟基，剩余的官能团是仲羟基或叔羟基。