Process for the production of unsaturated polyester resins
    2.
    发明授权
    Process for the production of unsaturated polyester resins 失效
    生产不饱和聚酯树脂的方法

    公开(公告)号:US3915936A

    公开(公告)日:1975-10-28

    申请号:US50501274

    申请日:1974-09-11

    CPC classification number: C08G63/52

    Abstract: A process for producing unsaturated polyester resins from conventionally employed unsaturated and optionally saturated dicarboxylic acids and polyhydric alcohols wherein the esterification catalyst employed is an alkali tetraphenylborate or a zirconate of 2-alkyl-1,3-hexanediol or 2,2-dialkyl-1,3hexanediol wherein the alkyl groups contain 1 to 4 carbon atoms.

    Abstract translation: 由常规使用的不饱和和不饱和二羧酸和多元醇制备不饱和聚酯树脂的方法,其中使用的酯化催化剂是2-烷基-1,3-己二醇或2,2-二烷基-1的碱性四苯基硼酸盐或锆酸盐, 3-己二醇,其中烷基含有1至4个碳原子。

    Method of bonding using a polyester hot-melt adhesive
    4.
    发明授权
    Method of bonding using a polyester hot-melt adhesive 失效
    使用聚酯热熔胶粘合剂的方法

    公开(公告)号:US3890186A

    公开(公告)日:1975-06-17

    申请号:US30328972

    申请日:1972-11-02

    CPC classification number: C09J167/02 C08K3/013 C08L2666/54 C08L67/02

    Abstract: Improvements in the cementing of leather or other pieces together by using a melting adhesive of polyester, comprising terephthalic acid, with or without isophthalic acid, and one or more glycol, admixed with 0.01 to 0.3 weight percent of an inorganic powder with a grain size less than 5 microns.

    Abstract translation: 通过使用含有或不含间苯二甲酸的对苯二甲酸的聚酯的熔融粘合剂和一种或多种二醇,将0.01至0.3重量%的无机粉末与粒径较小的无机粉末混合在一起来改善皮革或其它部件的粘合 超过5微米。

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