Citric acid derivatives as emulsifiers for emulsion polymerization
    4.
    发明授权
    Citric acid derivatives as emulsifiers for emulsion polymerization 失效
    柠檬酸衍生物作乳液聚合乳化剂

    公开(公告)号:US4737543A

    公开(公告)日:1988-04-12

    申请号:US013564

    申请日:1987-02-11

    CPC分类号: C08F2/26

    摘要: Process for the preparation of polymer dispersions with particle diameters of 50 to 1000 nm, wherein there are employed, as emulsifiers for the emulsion polymerization citric acid derivatives of the general formula (I) ##STR1## in which, independently of one another, R.sub.1, R.sub.2 and R.sub.3 denote C.sub.6 -C.sub.20 -alkyl, (including cycloalkyl) hydrogen, sodium, potassium, lithium or ammonium andR.sub.4 denotes hydrogen or acetyl,with the proviso that at least one of the radicals R.sub.1 to R.sub.3 denotes alkyl, and as initiators water-soluble agents which form free radicals or redox systems with at least one water-soluble component.

    摘要翻译: 用于制备粒径为50-1000nm的聚合物分散体的方法,其中使用作为通式(I)的乳液聚合柠檬酸衍生物(I)的乳化剂,其中彼此独立地 ,R 1,R 2和R 3表示C 6 -C 20烷基,(包括环烷基)氢,钠,钾,锂或铵,R 4表示氢或乙酰基,条件是R 1至R 3中的至少一个表示烷基, 作为引发剂形成具有至少一种水溶性组分的自由基或氧化还原体系的水溶性试剂。

    Branched sulfosuccinamic acid emulsifiers for the production of
particularly shear-stable despersions
    7.
    发明授权
    Branched sulfosuccinamic acid emulsifiers for the production of particularly shear-stable despersions 失效
    分支磺基琥珀酰胺酸乳化剂,用于生产特别是剪切稳定的分散体

    公开(公告)号:US4701284A

    公开(公告)日:1987-10-20

    申请号:US843305

    申请日:1986-03-24

    摘要: New sulfosuccinamic acids and derivatives thereof corresonding to the following formula ##STR1## in which R represents a linear or branches, saturated or unsaturated alkyl group containing from 8 to 22 carbon atoms or a group of the formula R.sup.4 --O--(CH.sub.2).sub.3 --(R.sup.4 =C.sub.8 -C.sub.22 alkyl), R.sup.1 and R.sup.2 represent hydrogen or --SO.sub.3 M.sup.1 and R.sup.3 represents a group corresponding to the formula; ##STR2## or to the forumla ##STR3## n is an integer of from 2 to 4 and M and M.sup.1 independently of one another represent hydrogen or an alkali metal, an ammonium, C.sub.1 -C.sub.4 alkylammonium or C.sub.2 -C.sub.3 hydroxyalkylammonium group and their use as surfactants and emulsifiers in aqueous systems.

    摘要翻译: 新的磺基琥珀酰胺酸及其衍生物与下式(I)相关,其中R表示含有8-22个碳原子的直链或支链,饱和或不饱和的烷基或式R4-O-(CH2 )3-(R 4 = C 8 -C 22烷基),R 1和R 2表示氢或-SO 3 M 1,R 3表示与式相应的基团。 或the forumla n是2至4的整数,M和M1彼此独立地表示氢或碱金属,铵,C 1 -C 4烷基铵或C 2 -C 3羟烷基铵基团及其用途 作为水性体系中的表面活性剂和乳化剂。