Sulfur-containing polyester and process for its production
    1.
    发明授权
    Sulfur-containing polyester and process for its production 失效
    含硫聚酯及其生产工艺

    公开(公告)号:US4504651A

    公开(公告)日:1985-03-12

    申请号:US554248

    申请日:1983-11-22

    摘要: A sulfur-containing polymer having a repeating unit represented by the formula: ##STR1## where R is a straight or branched alkylene group having from 1 to 6 carbon atoms, R' is a straight or branched alkylene group having from 1 to 3 carbon atoms and p is an integer of from 0 to 10, and having an average molecular weight of from 500 to 10,000 and a sulfur content of from 15 to 65% by weight. The sulfur-containing polymer of the present invention is useful as a flame or smoke retarding agent in resin and rubber materials.

    摘要翻译: 具有由下式表示的重复单元的含硫聚合物:其中R是具有1至6个碳原子的直链或支链亚烷基,R'是具有1至3个碳原子的直链或支链亚烷基 p为0〜10的整数,平均分子量为500〜10,000,硫含量为15〜65重量%。 本发明的含硫聚合物可用作树脂和橡胶材料中的阻燃剂或阻燃剂。

    Process for preparing resorcinol copolymers
    2.
    发明授权
    Process for preparing resorcinol copolymers 失效
    制备间苯二酚共聚物的方法

    公开(公告)号:US4376854A

    公开(公告)日:1983-03-15

    申请号:US365790

    申请日:1982-04-05

    摘要: A process for preparing a resorcinol copolymer, comprising at least one specific phenol with formaldehyde at a certain mole ratio to obtain a resol-type precondensate containing 1 to 30% of residual unreacted formaldehyde and then adding said resol-type precondensate to a mixture of an acid catalyst and at least one resorcinol to effect co-condensation. The obtained copolymer is useful for an adhesive for polyester fiber and rubber.

    摘要翻译: 一种制备间苯二酚共聚物的方法,该方法包括至少一种特定的苯酚与一定摩尔比的甲醛,以获得含有1至30%的残余未反应甲醛的甲阶酚醛型预缩合物,然后将所述甲阶酚醛型预缩合物加入到 酸催化剂和至少一种间苯二酚以实现共缩合。 所得共聚物可用于聚酯纤维和橡胶的粘合剂。