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    Initiator suspension, their preparation and use
    1.
    发明授权
    Initiator suspension, their preparation and use 失效
    启动器暂停，其准备和使用

    公开(公告)号：US5403804A

    公开(公告)日：1995-04-04

    申请号：US111054

    申请日：1993-08-24

    Applicant: Claes Lundin ,  Berit Simonsson

    Inventor： Claes Lundin ,  Berit Simonsson

    IPC: C08F2/18 ,  B01F5/06 ,  C07C407/00 ,  C07C409/00 ,  C07C409/34 ,  C07C409/38 ,  C08F2/20 ,  C08F4/00 ,  C08F4/28 ,  C08F4/32 ,  C08F4/34 ,  B01J35/08

    CPC classification number: C07C407/00 ,  C07C2101/14

    Abstract: An initiator suspension for use in the suspension polymerization of ethylenically unsaturated monomers is prepared by (a) heating the initiator to its melting point; (b) finely dividing the initiator in water while it is in a molten state; and (c) rapidly cooling so that the initiator is in a molten state for a period of time which is less than about 5 minutes. The initiator suspension has very small particles and a narrow particle size distribution whereby at least 50% by weight of the particles are smaller than 5 .mu.m and at least 90% by weight of the particles are smaller than 10 .mu.m.

    Abstract translation: 通过（a）将引发剂加热至其熔点，制备用于烯键式不饱和单体的悬浮聚合的引发剂悬浮液; （b）在水中处于熔融状态时将引发剂细分; 和（c）快速冷却，使得引发剂处于熔融状态，时间小于约5分钟。 引发剂悬浮液具有非常小的颗粒和窄的粒度分布，其中至少50重量％的颗粒小于5微米，并且至少90重量％的颗粒小于10微米。

    Initiator suspensions, their preparation and use
    2.
    发明授权
    Initiator suspensions, their preparation and use 失效
    引发剂悬浮液，其制备和使用

    公开(公告)号：US5574200A

    公开(公告)日：1996-11-12

    申请号：US376698

    申请日：1995-01-23

    Applicant: Claes Lundin ,  Berit Simonsson

    Inventor： Claes Lundin ,  Berit Simonsson

    IPC: C08F2/18 ,  B01F5/06 ,  C07C407/00 ,  C07C409/00 ,  C07C409/34 ,  C07C409/38 ,  C08F2/20 ,  C08F4/00 ,  C08F4/28 ,  C08F4/32 ,  C08F4/34

    CPC classification number: C07C407/00 ,  C07C2101/14

    Abstract: A process for the preparation of an aqueous suspension of a solid free-radical forming initiator, a plant for the preparation, an initiator suspension and use of the suspension in polymerization of ethylenically unsaturated monomers. The process for the preparation of the suspension comprises the steps of:(a) heating the initiator to its melting point;(b) finely dividing the initiator in water while it is in a molten state;(c) rapid cooling so that the initiator is in a molten state for a period of time which is less than about 5 minutes.The initiator suspension has very small particles and a narrow particle size distribution whereby at least 50% by weight of the particles are smaller than 5 .mu.m and at least 90% by weight of the particles are smaller than 10 .mu.m.

    Abstract translation: 制备固体自由基形成引发剂的水性悬浮液，制备用植物，引发剂悬浮液和烯键式不饱和单体的聚合中的悬浮液的使用方法。 制备悬浮液的方法包括以下步骤：（a）将引发剂加热至其熔点; （b）在水中处于熔融状态时将引发剂细分; （c）快速冷却，使得引发剂处于熔融状态，时间小于约5分钟。 引发剂悬浮液具有非常小的颗粒和窄的粒度分布，其中至少50重量％的颗粒小于5微米，并且至少90重量％的颗粒小于10微米。

    Initiator suspensions, their preparation and use
    3.
    发明授权
    Initiator suspensions, their preparation and use 失效
    引发剂悬浮液，其制备和使用

    公开(公告)号：US5270271A

    公开(公告)日：1993-12-14

    申请号：US885976

    申请日：1992-05-20

    Applicant: Claes Lundin ,  Berit Simonsson

    Inventor： Claes Lundin ,  Berit Simonsson

    IPC: C08F2/18 ,  B01F5/06 ,  C07C407/00 ,  C07C409/00 ,  C07C409/34 ,  C07C409/38 ,  C08F2/20 ,  C08F4/00 ,  C08F4/28 ,  C08F4/32 ,  C08F4/34 ,  B01J35/08

    CPC classification number: C07C407/00 ,  C07C2101/14

    Abstract: A process for the preparation of an aqueous suspension of a solid free-radical forming initiator, a plant for the preparation, an initiator suspension and use of the suspension in polymerization of ethylenically unsaturated monomers. The process for the preparation of the suspension comprises the steps of:(a) heating the initiator to its melting point;(b) finely dividing the initiator in water while it is in a molten state;(c) rapid cooling so that the initiator is in a molten state for a period of time which is less than about 5 minutes.The initiator suspension has very small particles and a narrow particle size distribution whereby at least 50% by weight of the particles are smaller than 5 .mu.m and at least 90% by weight of the particles are smaller than 10 .mu.m.

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