Hard waxes comprising terpolymers of ethylene with unsaturated
carboxylic acids and unsaturated carboxylic acid esters
    4.
    发明授权
    Hard waxes comprising terpolymers of ethylene with unsaturated carboxylic acids and unsaturated carboxylic acid esters 失效
    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

    公开(公告)号:US4406705A

    公开(公告)日:1983-09-27

    申请号:US349159

    申请日:1982-02-16

    CPC分类号: C08F210/02

    摘要: 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.

    摘要翻译: 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。

    Foam control in the sugar industry and in the yeast industry
    7.
    发明授权
    Foam control in the sugar industry and in the yeast industry 失效
    糖业和酵母业的泡沫控制

    公开(公告)号:US4753885A

    公开(公告)日:1988-06-28

    申请号:US77091

    申请日:1987-07-23

    摘要: Foam is controlled in the sugar industry and yeast industry by a process in which oxyalkylation products of the formula IR--O--(X.sub.1).sub.n --(X.sub.2).sub.m --(X.sub.3).sub.p --Zwhere R is alkyl of 6 to 22 carbon atoms or alkylphenyl where alkyl is of 6 to 12 carbon atoms, X.sub.1 and X.sub.3 are ethylene oxide units, n and p are each from 0 to 15 and the sum of n and p is not less than 2, the groups X.sub.2 are propylene oxide and/or butylene oxide units, m is from 0 to 15 and Z is straight-chain or branched alkyl of 1 to 4 carbon atoms, allyl or benzyl, having a turbidity point of

    摘要翻译: 泡沫在糖工业和酵母工业中被控制,其中式I RO-(X1)n-(X2)m-(X3)pZ的烷氧基化产物,其中R是6-22个碳原子的烷基或烷基苯基, 烷基为6至12个碳原子,X 1和X 3为环氧乙烷单元,n和p各自为0至15,n和p之和不小于2,基团X2为环氧丙烷和/或环氧丁烷 单元,m为0至15,Z为1至4个碳原子的直链或支链烷基,具有浊点<75℃的烯丙基或苄基用作消泡剂。

    Preparation of aqueous synthetic wax dispersions
    8.
    发明授权
    Preparation of aqueous synthetic wax dispersions 失效
    水性合成蜡分散体的制备

    公开(公告)号:US4996259A

    公开(公告)日:1991-02-26

    申请号:US397879

    申请日:1989-08-23

    IPC分类号: C08F8/44

    CPC分类号: C08F8/44

    摘要: Aqueous synthetic wax dispersions which contain, as an essential component of the solid substance, a partially or completely neutralized copolymer of a C.sub.2 -C.sub.4 -olefin and an unsaturated mono- or dicarboxylic acid or dicarboxylic anhydride are prepared by neutralizing and dispersing the solid substance in an aqueous medium at above the melting point of the copolymer, by a method in which the processes of neutralization and of dispersion are carried out in one extruder or in a plurality of extruders connected in series.

    摘要翻译: 含有作为固体物质的必需成分的C2-C4-烯烃和不饱和单羧酸或二羧酸酐的部分或完全中和的共聚物的水性合成蜡分散体是通过将固体物质中和和分散在 通过在一个挤出机或串联连接的多个挤出机中进行中和和分散过程的方法,在共聚物熔点以上的水性介质。