Process for the preparation of ethylene/(meth)acrylic acid copolymers
    3.
    发明授权
    Process for the preparation of ethylene/(meth)acrylic acid copolymers 失效
    制备乙烯/(甲基)丙烯酸共聚物的方法

    公开(公告)号:US5880233A

    公开(公告)日:1999-03-09

    申请号:US957321

    申请日:1997-11-06

    IPC分类号: C08F2/00 C08F4/38 C08F210/02

    CPC分类号: C08F210/02

    摘要: Copolymers of ethylene with .alpha.,.beta.-unsaturated carboxylic acids are prepared at from 50.degree. to 250.degree. C. and from 500 to 5000 bar in a stirred autoclave having a length/diameter ratio greater than 5:1 by a process in which the monomer mixtures are fed into the autoclave in at least two part-streams, the first part-stream being passed into the autoclave at the beginning of the autoclave pipe and the second part-stream being introduced at a position which is a distance away from the beginning which corresponds to 25-50% of the total length and the amount of the .alpha.,.beta.-unsaturated carboxylic acids in the first part-stream is from 20 to 90% less than the average amount in the further part-streams and a peroxide polymerization initiator having a lower decomposition temperature, or a mixture of peroxide polymerization initiators having a lower average decomposition temperature, than that of the initiators in the further part-streams is passed in with the first part-stream.

    摘要翻译: 乙烯与α,β-不饱和羧酸的共聚物在50至250℃和500至5000巴的条件下通过一种方法制备,所述搅拌高压釜的长度/直径比大于5:1,其中单体 将混合物以至少两部分流进料到高​​压釜中,第一部分物流在高压釜管道的开始处被送入高压釜中,并且将第二部分物流引入远离开始位置的位置 其对应于总长度的25-50%,并且第一部分流中的α,β-不饱和羧酸的量比另外的部分流中的平均量少20至90%,并且过氧化物聚合 具有较低分解温度的引发剂或具有较低平均分解温度的过氧化物聚合引发剂的混合物比其它部分流中的引发剂的引发剂与第一部分流一起进入。

    Preparation of keto-functional polyethylene waxes
    7.
    发明授权
    Preparation of keto-functional polyethylene waxes 失效
    酮官能聚乙烯蜡的制备

    公开(公告)号:US5932684A

    公开(公告)日:1999-08-03

    申请号:US948070

    申请日:1997-10-09

    IPC分类号: C08F210/02 C07C45/00

    CPC分类号: C08F210/02

    摘要: A process for preparing keto-functional polyethylene waxes having a molecular weight of from 150 to 1000 g/mol by telomerization of ethylene with aldehydes at from 500 to 5000 bar and from 100 to 280.degree. C., wherein ethylene and aldehyde are employed in a molar ration of from 5:1 to 50:1.

    摘要翻译: 通过乙烯与500-5000巴和100-280℃的醛的聚合来制备分子量为150-1000g / mol的酮官能聚乙烯蜡的方法,其中乙烯和醛用于 摩尔比为5:1至50:1。

    METHOD FOR PRODUCING POLYETHER ALCOHOLS
    8.
    发明申请
    METHOD FOR PRODUCING POLYETHER ALCOHOLS 审中-公开
    生产聚醚醇的方法

    公开(公告)号:US20100261870A1

    公开(公告)日:2010-10-14

    申请号:US12743116

    申请日:2008-12-16

    IPC分类号: C08G65/26

    摘要: The invention provides a process for preparing polyether alcohols by adding alkylene oxides onto H-functional starter substances, of which at least one is solid at room temperature in a reaction vessel, by feeding the starting components continuously to the reaction vessel, which comprises preparing a paste from the solid starter substance and feeding this paste continuously to the reaction vessel.

    摘要翻译: 本发明提供了一种制备聚醚醇的方法,其通过将氧化烯加入到H官能起始物质中,其中至少一种在室温下在反应容器中为固体,通过将起始组分连续地加入到反应容器中,其包括制备 从固体起始物质中糊化并将该糊剂连续地送入反应容器。

    Method for the production of polyisobutene
    9.
    发明授权
    Method for the production of polyisobutene 失效
    生产聚异丁烯的方法

    公开(公告)号:US07485764B2

    公开(公告)日:2009-02-03

    申请号:US10526936

    申请日:2003-09-18

    摘要: A process for the preparation of polyisobutene containing at least 75 mol % of terminal vinylidene groups, in which isobutene or an isobutene-containing hydrocarbon mixture is polymerized in the liquid phase in the presence of a boron trifluoride complex catalyst having the composition a(BF3):b(Co1):c(Co2) where Co1 is at least one tertiary alcohol, Co2 is at least one compound selected from water, primary alcohols, secondary alcohols, dialkyl ethers, alkanecarboxylic acids and phenols, the ratio c:b is from 0.9 to 1.8 and the ratio (b+c):a is from 0.9 to 3.0, is described.

    摘要翻译: 一种制备含有至少75mol%末端亚乙烯基的聚异丁烯的方法,其中异丁烯或含异丁烯的烃混合物在液相中在三氟化硼配合物催化剂存在下聚合,其组成为β- line-formula description =“In-line Formulas”end =“lead”?> a(BF3):b(Co1):c(Co2)<?in-line-formula description =“In-line Formulas”end = 尾部“→”,其中Co1为至少一种叔醇,Co 2为选自水,伯醇,仲醇,二烷基醚,链烷羧酸和酚中的至少一种化合物,c:b为0.9至1.8, (b + c):a为0.9〜3.0。

    Gas-phase fluidized-bed reactor
    10.
    发明授权
    Gas-phase fluidized-bed reactor 失效
    气相流化床反应器

    公开(公告)号:US07226565B2

    公开(公告)日:2007-06-05

    申请号:US10913658

    申请日:2004-08-09

    IPC分类号: B01J8/18

    摘要: Ethylenically unsaturated monomers are polymerized in a gas-phase fluidized-bed reactor comprising a reactor space (1) in the form of a vertical tube, a calming zone (2) adjoining the upper part of the reactor space, a circulated gas line (3), a circulated gas compressor (4), a cooling apparatus (5), a gas distributor plate (6) which forms the lower boundary of the reactor space and, if desired, a flow divider (7), wherein the gas distributor plate (6) has a plurality of gas flow orifices (8) whose outlet sides are widened conically.

    摘要翻译: 乙烯基不饱和单体在气相流化床反应器中聚合,该反应器包括垂直管形式的反应器空间(1),毗邻反应器空间上部的平静区(2),循环气体管线 ),循环式气体压缩机(4),冷却装置(5),形成反应器空间的下边界的气体分布板(6)以及如果需要的分流器(7),其中气体分配板 (6)具有多个出口侧锥形扩大的气流孔(8)。