NOVEL POLYMERIC PROCESS AND PRODUCTS PRODUCED
    3.
    发明申请
    NOVEL POLYMERIC PROCESS AND PRODUCTS PRODUCED 审中-公开
    新型聚合工艺和产品生产

    公开(公告)号:WO1996032422A1

    公开(公告)日:1996-10-17

    申请号:PCT/EP1996001366

    申请日:1996-03-28

    CPC classification number: C09J125/10 C08F2/22 C08F236/10 C08F2/38

    Abstract: A novel process described as polytelomerization and novel adhesive compositions are disclosed. Such a process involves the free-radical aqueous emulsion polymerization of at least two batches A and B, with the proviso that: the free-radical aqueous emulsion polymerization of the two batches A and B takes place in one polymerization vessel; the polymerization of batch A commences at a different point in time to that of batch B; and the composition of monomers and chain transfer agent of batch A contains 0-3 % by weight of chain transfer agent and the composition of monomers and chain transfer agent of batch B contains more chain transfer agents than batch A with the proviso that the amount of chain transfer agent in batch B is at least 5 % if the total amount of chain transfer agent in A and in B is less than 2.5 %.

    Abstract translation: 公开了一种描述为多聚化和新型粘合剂组合物的新方法。 这种方法涉及至少两批A和B的自由基水性乳液聚合,条件是:两批A和B的自由基水乳液聚合在一个聚合容器中进行; 批次A的聚合开始于与批次B不同的时间点; 并且批次A的单体和链转移剂的组成包含0-3重量%的链转移剂,并且批次B的单体和链转移剂的组成包含比批次A更多的链转移剂,条件是 如果A和B中的链转移剂的总量小于2.5%,则批次B中的链转移剂为至少5%。

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