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    • 3. 发明授权
    • Hard waxes comprising terpolymers of ethylene with unsaturated
carboxylic acids and unsaturated carboxylic acid esters
    • 硬蜡包括乙烯与不饱和羧酸和不饱和羧酸酯的三元共聚物
    • US4406705A
    • 1983-09-27
    • US349159
    • 1982-02-16
    • Dieter OederWolfram DietscheStefan WeissWalter ZieglerAlbert Hettche
    • Dieter OederWolfram DietscheStefan WeissWalter ZieglerAlbert Hettche
    • C08F210/00C08F210/02C09G1/00D06M15/263C08L91/06
    • C08F210/02
    • Water-emulsifiable hard waxes consisting of homogeneous terpolymers of ethylene with--based on weight of terpolymer--from 1 to 8% by weight of C.sub.3 -C.sub.8 -olefinically unsaturated carboxylic acids and from 0.5 to 10% by weight of C.sub.1 -C.sub.12 -alkyl esters of such unsaturated carboxylic acids and having a Staudinger index, determined according to DIN 53,728, of from 5 to 55, an acid number of from 8 to 62 and a Hoppler hardness, measured by DFG standard method M-III-9a(57), at 23.degree. C., of from 250 to 800 bar, are obtained by copolymerizing ethylene with olefinically unsaturated C.sub.3 -C.sub.8 -carboxylic acids and esters of such acids with C.sub.1 -C.sub.12 -alkanols in a continuous process in the presence of a free radical initiator at from 150.degree. to 300.degree. C. under a pressure of from 1,000 to 3,000 bar, using a weight ratio of ethylene:acid:acrylate of from 500:1:1 to 20:1:1, in a one-phase polymerization medium in which the monomers are soluble, in the presence of from 0.01 to 8% by weight, based on the sum of the monomers, of a regulator, from 3 to 25% by weight of the ethylene being converted and the copolymer formed being removed continuously from the reaction zone.
    • 由均相的三元共聚物组成的水可乳化的硬蜡,其基于三元共聚物的重量 - 1至8重量%的C 3 -C 8 - 烯属不饱和羧酸和0.5至10重量%的C 1 -C 12烷基酯 的这种不饱和羧酸,并且根据DIN 53,728测定的Staudinger指数为5至55,酸值为8至62,Höppler硬度通过DFG标准方法M-III-9a(57)测量, 通过在自由基引发剂存在下,在连续方法中将乙烯与烯属不饱和C 3 -C 8 - 羧酸和这些酸的酯与C 1 -C 12 - 链烷醇共聚获得,其熔点为23℃, 在1000-3000巴的压力下,使用乙烯:酸:丙烯酸酯的重量比为500:1:1至20:1:1的单相聚合介质 其中单体可溶,在0.01至8重量%的存在下,基于 单体,调节剂,3至25重量%的乙烯被转化,形成的共聚物从反应区连续除去。
    • 4. 发明授权
    • High molecular weight homopolymers and copolymers of ethene
    • 乙烯的高分子量均聚物和共聚物
    • US5756627A
    • 1998-05-26
    • US954429
    • 1992-09-30
    • Hans GropperGuido FunkErich KolkDieter Oeder
    • Hans GropperGuido FunkErich KolkDieter Oeder
    • C08F4/02C08F4/18C08F4/22C08F4/24C08F10/00C08F110/02C08F10/02
    • C08F10/00C08F110/02
    • The present invention relates to high molecular weight homopolymers and copolymers of ethene, which homopolymer or copolymer is obtained by polymerizing the monomer(s) at a temperature of from 70.degree. to 150.degree. C. and under a pressure of from 2 to 150 bar in contact witha chromium trioxide catalyst, (1) loading a support based on silicon dioxide with (2) either chromium trioxide or a chromium compound capable of being converted to chromium trioxide under the conditions of stage (3) below and then (3) heating the resulting intermediate in a gas stream containing oxygen, the support (1) being a special silica xerogel obtained by extracting not more than 30% of the water from a silica hydrogel by means of an alkanol, an alkanone or a mixture thereof followed by drying, comminution and fractional screening.
    • 本发明涉及乙烯的高分子量均聚物和共聚物,其均聚物或共聚物是通过在70℃至150℃的温度和2至150巴的压力下将单体聚合而获得的 与三氧化铬催化剂接触,(1)在下述阶段(3)的条件下,将(2)三氧化铬或能够转化成三氧化铬的铬化合物(2)加载基于二氧化硅的载体,然后(3)加热 在含有氧的气流中产生中间体,所述载体(1)是通过使用烷醇,烷酮或其混合物从二氧化硅水凝胶中提取不超过30%的水而获得的特殊二氧化硅干凝胶,然后干燥, 粉碎和分数筛选。