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12 条记录 (耗时 0.169 秒)

    Multi-stage isolation of high pressure polyethylene
    3.
    发明授权
    Multi-stage isolation of high pressure polyethylene 失效
    多级隔离高压聚乙烯

    公开(公告)号：US4093795A

    公开(公告)日：1978-06-06

    申请号：US687870

    申请日：1976-05-19

    申请人： Oskar Buechner ,  Gottfried Schlichthaerle ,  Friedrich Urban

    发明人： Oskar Buechner ,  Gottfried Schlichthaerle ,  Friedrich Urban

    IPC分类号： C08F10/02 ,  C08F110/02 ,  C08F6/26 ,  C08F6/28

    CPC分类号： C08F10/02 ,  C08F110/02

    摘要： A process for the manufacture of ethylene polymers by high pressure polymerization of ethylene, if desired mixed with other compounds copolymerizable with ethylene, and isolation of the reaction product in a multi-stage isolation zone. The molecular weight of the ethylene polymer can be varied by varying the temperature prevailing in the isolation zone. The isolation zone preferably consists of two stages, with a higher pressure prevailing in the first stage than in the second stage.

    摘要翻译： 通过乙烯的高压聚合制备乙烯聚合物的方法，如果需要，可与其他可与乙烯共聚的化合物混合，以及在多级隔离区中分离反应产物。 乙烯聚合物的分子量可以通过改变隔离区中的温度来改变。 隔离区优选地由两个阶段组成，在第一阶段中比在第二阶段中具有更高的压力。

    Citric acid fatty alcohol ester polyglycol ether sulfosuccinates, process for their preparation and their use
    4.
    发明授权
    Citric acid fatty alcohol ester polyglycol ether sulfosuccinates, process for their preparation and their use 失效
    柠檬酸脂肪醇醇聚醚醚醚磺酸盐，其制备方法及其使用

    公开(公告)号：US5190699A

    公开(公告)日：1993-03-02

    申请号：US863832

    申请日：1992-04-06

    申请人： Elke Hohn ,  Hans-Jurgen Kohle ,  Georg-Friedrich Urban ,  Joachim Weigand ,  Christl Moller

    发明人： Elke Hohn ,  Hans-Jurgen Kohle ,  Georg-Friedrich Urban ,  Joachim Weigand ,  Christl Moller

    IPC分类号： A61K8/46 ,  A61Q5/02 ,  A61Q19/10 ,  C07C309/17 ,  C11D1/12 ,  C11D1/28

    CPC分类号： C11D1/123 ,  A61K8/466 ,  A61Q19/10 ,  A61Q5/02 ,  C07C309/17

    摘要： Disclosed are citric acid fatty alcohol ester polyglycol ether sulfosuccinates of the general formula (1) ##STR1## and personal care products containing them, in which each R is the same or different and is H or -CH.sub.3 ; ##STR2## R.sup.2 is selected from the group consisting of ##STR3## acyl radicals having 8-22 carbon atoms, which radicals are optionally substituted and optionally contain one or more multiple bonds;R.sup.3 is an alkyl or acyl radical having 8-22 carbon atoms, which is optionally substituted and optionally contains multiple bonds;a and b, which are identical or different, are each 0-5, provided that the sum of (a+b) is at least 1;c is 0-15; andX.sup.+ is in each occurrence H.sup.+ or a cation.

    摘要翻译： 公开了通式（1）＆lt; IMAGE＆gt;（1）的柠檬酸脂肪醇酯聚乙二醇醚磺基琥珀酸盐和含有它们的个人护理产物，其中每个R相同或不同，为H或-CH 3; R 2选自由下列组成的组，其由下列组成：具有8-22个碳原子的烷基和酰基，该基团任选被取代并且任选含有一个或多个多重键; R3是具有8-22个碳原子的烷基或酰基，其任选被取代且任选地含有多个键; a和b相同或不同，分别为0-5，条件是（a + b）之和至少为1; c为0-15; 并且X +在每次出现时为H +或阳离子。

    Manufacture of ethylene polymers in a two-zone tubular reactor at pressure above 500 bars
    6.
    发明授权
    Manufacture of ethylene polymers in a two-zone tubular reactor at pressure above 500 bars 失效
    在压力高于500巴的双区管式反应器中制造乙烯聚合物

    公开(公告)号：US4076919A

    公开(公告)日：1978-02-28

    申请号：US741939

    申请日：1976-11-15

    申请人： Friedrich Urban ,  Oskar Buechner ,  Ulrich Hartig ,  Hans Gropper

    发明人： Friedrich Urban ,  Oskar Buechner ,  Ulrich Hartig ,  Hans Gropper

    IPC分类号： C08F2/00 ,  C08F4/28 ,  C08F10/00 ,  C08F10/02

    CPC分类号： C08F10/02

    摘要： Ethylene polymers are manufactured in a tubular reactor under high pressure and at high temperatures in the presence of polymerization initiators. The polymerization is carried out in two different zones of the reactor, a mixture of ethylene, oxygen and regulator being fed into the first zone and a co-initiator having a half-life temperature, measured in benzene, of above 140.degree. C being additionally fed into the second zone. The co-initiator may be a peroxide or a hydroperoxide. The melt index, or the haze and gloss of a film produced from the resulting ethylene polymer, can be varied advantageously through the choice of the co-initiator.

    摘要翻译： 乙烯聚合物在管式反应器中在高压和高温下在聚合引发剂存在下制备。 在反应器的两个不同区域进行聚合，将乙烯，氧气和调节剂的混合物进料到第一区域中，另外在苯中测定的具有半衰期温度的共引发剂在140℃以上 进入第二区。 共引发剂可以是过氧化物或氢过氧化物。 可以通过选择共引发剂来有利地改变由所得乙烯聚合物制备的膜的熔体指数或雾度和光泽度。

    Process for the manufacture of graft polymers
    7.
    发明授权
    Process for the manufacture of graft polymers 失效
    制备接枝聚合物的方法

    公开(公告)号：US3949019A

    公开(公告)日：1976-04-06

    申请号：US497572

    申请日：1974-08-15

    申请人： Gerhard Zeitler ,  Heinz Mueller-Tamm ,  Friedrich Urban

    发明人： Gerhard Zeitler ,  Heinz Mueller-Tamm ,  Friedrich Urban

    IPC分类号： C08F255/00 ,  C08F255/02 ,  C08F265/04 ,  C08L23/26

    CPC分类号： C08F255/02

    摘要： Process for the manufacture of graft polymers from copolymers of ethylene with vinyl esters, acrylates or methacrylates by grafting an ethylenically unsaturated carboxylic acid thereto in the presence of a free-radical polymerization initiator. Homogeneous graft copolymers are obtained from which sheeting can be made. To this end, the unsaturated carboxylic acid is first caused to diffuse into the copolymer and the mixture is then extruded at temperatures above the crystallite melting point of the ethylene copolymer.

    摘要翻译： 通过在自由基聚合引发剂存在下将乙烯基不饱和羧酸接枝到乙烯基酯，丙烯酸酯或甲基丙烯酸酯的共聚物上来制备接枝聚合物的方法。 得到均匀的接枝共聚物，可从中制备片材。 为此，首先使不饱和羧酸扩散到共聚物中，然后在高于乙烯共聚物的微晶熔点的温度下挤出该混合物。

    Manufacture of ethylene polymers in an autoclave reactor
    9.
    发明授权
    Manufacture of ethylene polymers in an autoclave reactor 失效
    在高压釜反应器中制造乙烯聚合物

    公开(公告)号：US4074040A

    公开(公告)日：1978-02-14

    申请号：US758208

    申请日：1977-01-10

    申请人： Dieter Oeder ,  Hans Gropper ,  Friedrich Urban

    发明人： Dieter Oeder ,  Hans Gropper ,  Friedrich Urban

    IPC分类号： C08F10/00 ,  C08F2/02 ,  C08F2/34 ,  C08F10/02

    CPC分类号： C08F10/02

    摘要： Ethylene polymers are manufactured by polymerizing ethylene under high pressure at high temperatures in an autoclave reactor. The heat of reaction generated by the polymerization is removed, within the reactor, by a cooling system in which the cooling medium is ethylene; the pressure of the monomer in the cooling system should differ by from 0 to 200 bars from the pressure prevailing in the polymerization system, and the temperature of the monomer on entering the cooling system is at least 40.degree. C. lower than the temperature prevailing in the autoclave. The process permits an increase in the conversion achieved in the polymerization reaction.

    摘要翻译： 乙烯聚合物通过在高压釜反应器中在高压下高压聚乙烯来制造。 在反应器内通过冷却介质为乙烯的冷却系统除去聚合产生的反应热; 冷却系统中单体的压力应与聚合体系中的压力相差0至200巴，进入冷却系统的单体温度低于低于常温下的温度至少40℃ 高压灭菌器 该方法允许在聚合反应中实现的转化率增加。