Amphoteric and anionic polymer dispersions, process for their
preparation and use thereof
    4.
    发明授权
    Amphoteric and anionic polymer dispersions, process for their preparation and use thereof 失效
    两性和阴离子聚合物分散体,其制备方法和用途

    公开(公告)号:US5925722A

    公开(公告)日:1999-07-20

    申请号:US737782

    申请日:1996-11-25

    摘要: A process for producing an amphoteric aqueous polymer dispersion by two-step radical copolymerization includes (a) decomposing a starch by treatment with an enzyme or acid hydrolysis to provide a starch solution composed of decomposed starch and/or derivatives thereof having an average molecular weight ranging from 500 to 2000 g/mole and with the starch solution having an internal viscosity

    摘要翻译: PCT No.PCT / EP96 / 01193 Sec。 371日期:1996年11月25日 102(e)日期1996年11月25日PCT 1996年3月20日PCT公布。 公开号WO96 / 30420 PCT 日期:1996年10月3日通过两步自由基共聚制备两性聚合物水性分散体的方法包括:(a)通过酶或酸水解处理来分解淀粉,得到由分解的淀粉和/或其衍生物组成的淀粉溶液, 平均分子量范围为500-2000g / mol,淀粉溶液的内部粘度<0.1dl / g; (b)使含有至多30重量%的阴离子特征的单体(单体A)的烯键式不饱和单体聚合,所述单体混合物在选自烯属不饱和碳酸,磺酸和膦酸的存在下,存在至多40重量% 的淀粉溶液,其中淀粉与单体混合物的重量比范围为20:1至1:20,并且如此获得的阴离子聚合物分散体具有15至45重量%的固体含量并具有zeta电位范围 从-3到-70 mV; 和(c)使步骤(b)的分散体与含有烯属不饱和单体和至多35重量%阳离子特征的单体(单体B)的另一单体混合物聚合,步骤(b)的分散体之间的重量比 而另一种单体的范围为10:1至1:10。

    Graft copolymers of unsaturated monomers and sugars, a process for the
production and the use thereof
    5.
    发明授权
    Graft copolymers of unsaturated monomers and sugars, a process for the production and the use thereof 失效
    不饱和单体和糖的接枝共聚物,其制备方法和用途

    公开(公告)号:US5854321A

    公开(公告)日:1998-12-29

    申请号:US832954

    申请日:1997-04-04

    摘要: The present invention relates to water-soluble, acid-groups-containing graft copolymers which are at least partially biodegradable and are based on sugars and monoethylenically unsaturated carboxylic acids, sulfonic acids and/or phosphonic acids or the salts of said acids as well as optional further monomers. The present invention further relates to a process for producing the graft copolymers at temperatures of up to 200.degree. C. by means of radical polymerization initiators, in that a total mixture of 5-60%-wt. mono-, di- and oligosaccharides, the derivatives thereof or the mixtures thereof, and 95-40%-wt. of a monomer mixture comprising at least one monoethylenically unsaturated carboxylic acid, at least one monoethylenically unsaturated sulfonic acid, one monoethylenically unsaturated sulfuric acid ester and/or vinylphosphonic acid or the salts of said acids with monovalent cations, as well as optional further monomers is polymerized. The present invention further relates to the use of the graft copolymers in aqueous systems, for binding multivalent metal ions, inhibiting the water hardness, as additive in detergents and cleaning agents, as textile auxiliary, dispersing agent, in particular for pigments, and as auxiliary agent in the production of paper and leather.

    摘要翻译: 本发明涉及至少部分可生物降解并且基于糖和单烯键式不饱和羧酸,磺酸和/或膦酸或所述酸的盐以及任选的可溶于水的可溶于酸的基团的接枝共聚物 进一步的单体。 本发明还涉及通过自由基聚合引发剂在高达200℃的温度下生产接枝共聚物的方法,其中5-60重量% 单糖,二糖和寡糖,其衍生物或其混合物,和95-40重量% 包含至少一种单烯属不饱和羧酸,至少一种单烯属不饱和磺酸,一个单烯属不饱和硫酸酯和/或乙烯基膦酸或所述酸与一价阳离子的盐以及任选的其它单体的单体混合物被聚合 。 本发明还涉及在水系统中用于结合多价金属离子,抑制水硬度,作为洗涤剂和清洁剂中的添加剂的用途,作为纺织助剂,分散剂,特别是颜料和助剂 代理生产纸和皮革。

    Semi-interpenetrating polymer networks
    8.
    发明授权
    Semi-interpenetrating polymer networks 失效
    半互穿聚合物网络

    公开(公告)号:US4654379A

    公开(公告)日:1987-03-31

    申请号:US804763

    申请日:1985-12-05

    申请人: Stephen C. Lapin

    发明人: Stephen C. Lapin

    摘要: Semi-interpenetrating polymer networks which may be used as printing inks or as coatings are prepared by subjecting a mixture of a vinyl ether and a cellulose ester to irradiation from an electron beam. This mixture is curable with low energy dosages ranging from about 0.1 to about 10.0 Mrads, and from about 150 to about 300 Kev. The reaction is effected in the presence of a polymerization catalyst comprising an onium salt.

    摘要翻译: 可以用作印刷油墨或涂料的半互穿聚合物网络通过使乙烯基醚和纤维素酯的混合物经受电子束的照射来制备。 该混合物可以以约0.1至约10.0Mrad以及约150至约300Kev的低能量剂量固化。 反应在含有鎓盐的聚合催化剂的存在下进行。