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
    6.
    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。

    Acidic zinc-plating bath
    9.
    发明授权
    Acidic zinc-plating bath 失效
    酸性镀锌浴

    公开(公告)号:US4496439A

    公开(公告)日:1985-01-29

    申请号:US565217

    申请日:1983-12-23

    IPC分类号: C25D3/22

    CPC分类号: C25D3/22

    摘要: In an aqueous acidic plating bath for the electrolytic deposition of zinc, which contains conventional conductive salts, brighteners and surfactants, one of the surfactants is a surfactant of the formula I ##STR1## where R.sup.1 is C.sub.4 -C.sub.20 -alkyl, R.sup.2 is identical to R.sup.1 or is hydrogen, X and Y are each a radical --SO.sub.3 H, where the hydrogen atom can be replaced by an alkali metal or alkaline earth metal atom or by one equivalent of zinc and n is an integer from 5 to 50.

    摘要翻译: 在含有常规导电盐,增白剂和表面活性剂的电解沉积锌的酸性电镀浴中,一种表面活性剂是式I的表面活性剂,其中R 1是C 4 -C 20 - 烷基,R 2与 R1或为氢,X和Y各自为-SO 3 H基团,其中氢原子可被碱金属或碱土金属原子替代,或由1当量的锌代替,n为5至50的整数。

    Stabilizers
    10.
    发明授权
    Stabilizers 失效
    稳定剂

    公开(公告)号:US4680327A

    公开(公告)日:1987-07-14

    申请号:US823744

    申请日:1986-01-29

    CPC分类号: C08K5/1545 C08K5/103

    摘要: Stabilizers consisting of (a) 2,5,7,8-tetramethyl-2-(2'-stearyloxyethyl)-chroman and (b) glyceryl stearate, glyceryl hydroxystearate, partial esters of stearic acid with condensates of glycerol and trimethylolpropane, triglyceryl stearate and/or tetraglyceryl stearate, with or without further conventional additives, the weight ratio of (a) to (b) being from 10:1 to 1:10, give improved stabilization to discoloration and superior stability during processing when used in plastics such as polyethylene or polypropylene.

    摘要翻译: 稳定剂由(a)2,5,7,8-四甲基-2-(2'-硬脂酰氧基乙基) - 苯并二氢吡喃和(b)硬脂酸甘油酯,羟基硬脂酸甘油酯,硬脂酸与甘油和三羟甲基丙烷缩合物的偏酯,硬脂酸甘油三酯 和/或四甘油硬脂酸酯,使用或不含其它常规添加剂时,(a)至(b)的重量比为10:1至1:10,当在塑料中使用时,提供改进的变色稳定性和加工过程中优异的稳定性 聚乙烯或聚丙烯。