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    Compound for copolymeric polyester resin, and preparation method of copolymeric polyester resin using the same
    1.
    发明授权
    Compound for copolymeric polyester resin, and preparation method of copolymeric polyester resin using the same 有权

    公开(公告)号：US11046811B2

    公开(公告)日：2021-06-29

    申请号：US15569183

    申请日：2016-03-04

    申请人： Huvis Corporation

    发明人： Boo-Kyeong Jang ,  Hyun-Wook Shin ,  Seong-Yoon Park ,  Yo-Seung Ho

    IPC分类号： C08G63/183 ,  C08G63/16 ,  C07C31/20

    摘要： A method for preparing a thermal adhesive copolymerized polyester resin is disclosed. The method includes: a transesterification reaction in a reaction mixture of a diol compound according to Formula 1, for example, 2-Methyl-1,3-propanediol, an isophthalic acid (IPA) or an IPA derivative as an acid component, and polyethylene terephthalate; and a condensation polymerization reaction of the reaction mixture to prepare a copolymerized polyester resin. The copolymerized polyester resin has an intrinsic viscosity (I.V.) of 0.5 dL/g to 0.75 dL/g, a softening point (Ts) of 100° C. to 160° C., and a glass transition temperature (Tg) of 60° C. to 70° C. The copolymerized polyester resin can be effectively used in fields of clothing, automobile parts, as a thermal adhesive fiber. wherein R1 is an alkyl group having 1 to 4 carbon atoms, a and b are each independently an integer ranging from 0 to 3, and each solid line represents a single bond when a and b is 0.