Increased polymerization reactor output by using a specific initiator system
    2.
    发明申请
    Increased polymerization reactor output by using a specific initiator system 有权
    通过使用特定的引发剂体系增加聚合反应器的输出

    公开(公告)号:US20060149014A1

    公开(公告)日:2006-07-06

    申请号:US10553971

    申请日:2004-04-27

    IPC分类号: C08F14/06

    CPC分类号: C08F4/38 C08F14/06 C08F2/18

    摘要: The invention pertains to a process to polymerize one or more monomers wherein at most 90% w/w of a safely useable amount of a first initiator is used and a second initiator is dosed at least after the start of the polymerization, in an amount such that essentially the full cooling capacity of the polymerization reactor is used, resulting in a cost efficient process to make polymers, particularly polymers comprising polymerized vinyl chloride.

    摘要翻译: 本发明涉及一种使一种或多种单体聚合的方法,其中使用至多90%w / w的可安全使用量的第一引发剂,并且至少在聚合开始后给予第二引发剂,其量等于 基本上使用聚合反应器的完全冷却能力,导致制造聚合物,特别是包含聚合氯乙烯的聚合物的成本有效的方法。

    Addition of organic initiators during the pressure drop In vinyl chloride monomer polymerization reactions
    3.
    发明申请
    Addition of organic initiators during the pressure drop In vinyl chloride monomer polymerization reactions 审中-公开
    在压降下加入有机引发剂在氯乙烯单体聚合反应中

    公开(公告)号:US20050080207A1

    公开(公告)日:2005-04-14

    申请号:US10497993

    申请日:2002-12-17

    摘要: The invention pertains to a process to polymerize one or more monomers wherein one or more initiators and optionally one or more surfactants are added to a polymerization mixture when the pressure in the polymerization reactor is dropping. This process allows a shorter polymerization time due to a higher pressure drop rate at the end of the polymerization reaction. Moreover, the cooling capacity of the polymerization reactor is used more efficiently.

    摘要翻译: 本发明涉及聚合一种或多种单体的方法,其中当聚合反应器中的压力下降时,将一种或多种引发剂和任选的一种或多种表面活性剂加入到聚合混合物中。 该方法由于在聚合反应结束时的更高的压降速率而允许较短的聚合时间。 此外,更有效地使用聚合反应器的冷却能力。

    Polymerization process involving the dosing initiators
    6.
    发明申请
    Polymerization process involving the dosing initiators 有权
    涉及给药引发剂的聚合方法

    公开(公告)号:US20060122339A1

    公开(公告)日:2006-06-08

    申请号:US10559775

    申请日:2004-06-15

    IPC分类号: C08F2/00

    摘要: The invention relates to a polymerization process wherein at least one peroxide, with a half life in between 1 hour and 0.001 hour at the polymerization temperature at the moment of dosing, is dosed to the reaction mixture at the polymerization temperature and wherein at least during part of the period in which the peroxide is dosed i) the cooling means of the reactor are kept at essentially maximum cooling capacity and ii) the amount of initiator that is dosed is actively controlled such that the desired polymerization temperature is achieved and maintained within 0.3° C. of said polymerization temperature.

    摘要翻译: 本发明涉及一种聚合方法,其中在聚合温度下,在聚合温度下,在聚合温度下半衰期为1小时至0.001小时的至少一种过氧化物,在聚合温度下至少在部分 的过氧化物的使用时间i)将反应器的冷却装置保持在基本上最大的冷却能力,和ii)主动控制剂量的引发剂的量,使得达到所需的聚合温度并保持在0.3° C.所述聚合温度。

    Polymerization process involving the dosing initiators
    7.
    发明授权
    Polymerization process involving the dosing initiators 有权
    涉及给药引发剂的聚合方法

    公开(公告)号:US07173095B2

    公开(公告)日:2007-02-06

    申请号:US10559775

    申请日:2004-06-15

    IPC分类号: C08F4/34 C08F2/00

    摘要: The invention relates to a polymerization process wherein at least one peroxide, with a half life in between 1 hour and 0.001 hour at the polymerization temperature at the moment of dosing, is dosed to the reaction mixture at the polymerization temperature and wherein at least during part of the period in which the peroxide is dosed i) the cooling means of the reactor are kept at essentially maximum cooling capacity and ii) the amount of initiator that is dosed is actively controlled such that the desired polymerization temperature is achieved and maintained within 0.3° C. of said polymerization temperature.

    摘要翻译: 本发明涉及一种聚合方法,其中在聚合温度下,在聚合温度下,在聚合温度下半衰期为1小时至0.001小时的至少一种过氧化物,在聚合温度下至少在部分 的过氧化物的使用时间i)将反应器的冷却装置保持在基本上最大的冷却能力,和ii)主动控制剂量的引发剂的量,使得达到所需的聚合温度并保持在0.3° C.所述聚合温度。

    Emulsions of peroxyesters
    8.
    发明授权
    Emulsions of peroxyesters 有权
    过氧化物乳液

    公开(公告)号:US06350835B1

    公开(公告)日:2002-02-26

    申请号:US09489238

    申请日:2000-01-21

    IPC分类号: C08F434

    CPC分类号: C08F4/34

    摘要: The invention relates to aqueous emulsions of peroxyesters comprising an anti-freeze agent, a polyvinyl acetate with a degree of hydrolysis between 45 and 68%, and a non-ionic surfactant with an HLB value greater than 16 selected from alkylene oxide block-copolymers, ethoxylated fatty alcohols, and ethoxylated fatty acids. The emulsions are safe, storage stable, and generally applicable.

    摘要翻译: 本发明涉及过氧酯的水乳液,其包含防冻剂,45-68%水解度的聚乙酸乙烯酯和HLB值大于16的选自环氧烷烃嵌段共聚物的非离子表面活性剂, 乙氧基化脂肪醇和乙氧基化脂肪酸。 乳剂是安全的,储存稳定的,并且通常适用。

    Process for enhancing the melt strength of polypropylene (co)polymers
    9.
    发明授权
    Process for enhancing the melt strength of polypropylene (co)polymers 有权
    提高聚丙烯(共)聚合物熔体强度的方法

    公开(公告)号:US6103833A

    公开(公告)日:2000-08-15

    申请号:US211807

    申请日:1998-12-15

    IPC分类号: C08F8/50

    CPC分类号: C08F8/50

    摘要: The invention pertains to a process for enhancing the melt strength of a polypropylene (co)polymer with the aid of initiator dispersions. The use of initiator dispersions with a particulate initiator instead of the corresponding non-dispersed initiators or their dilutions or solutions results in a significant enhancement of the melt strength of the modified polymer, and a wide range of initiators turn out to be serviceable.

    摘要翻译: 本发明涉及借助于引发剂分散体增强聚丙烯(共)聚合物的熔体强度的方法。 使用引发剂分散体与颗粒引发剂代替相应的非分散引发剂或其稀释液或溶液导致改性聚合物的熔体强度的显着提高,并且宽范围的引发剂变得可用。