Preparation of polyacetals, use thereof and novel polyacetals
    15.
    发明授权
    Preparation of polyacetals, use thereof and novel polyacetals 失效
    聚缩醛的制备,其用途和新型聚缩醛

    公开(公告)号:US5506332A

    公开(公告)日:1996-04-09

    申请号:US374527

    申请日:1995-02-02

    摘要: A process for preparing polyacetals by copolymerization of glyoxylic esters with other copolymerizable monomers in the presence of anionic or cationic polymerization initiators, with or without the introduction of stable end groups and with or without hydrolysis of the copolymerized units of glyoxylic ester present in the copolymer comprises using as monomers cyclic formals derived from diols, homopolymers of formaldehyde, trioxepane or mixtures thereof, although up to 50% by weight of this group of monomers may be replaced by other customary copolymerizable monomers, and the poly(acetal-carboxylate)s thus obtainable are useful as additives in reduced-phosphate and phosphate-free detergents and cleaners, as water treatment agents and as dispersants for finely divided substances.

    摘要翻译: PCT No.PCT / EP93 / 02176 Sec。 371日期:1995年2月2日 102(e)1995年2月2日PCT PCT 1993年8月16日PCT公布。 公开号WO94 / 04585 日本3月3日,1994年。一种通过在阴离子或阳离子聚合引发剂的存在下将乙醛酸酯与其它可共聚单体共聚制备聚缩醛的方法,具有或不引入稳定的端基并且有或没有水解共聚单元 存在于共聚物中的乙醛酸酯包括使用衍生自二醇的环状缩甲醛,甲醛的均聚物,三氧杂环己烷或其混合物,尽管该组单体的至多50重量%可被其它常规可共聚单体代替,聚 缩醛羧酸盐)可用作还原磷酸盐和无磷酸盐洗涤剂和清洁剂中的添加剂,作为水处理剂和用作细碎物质的分散剂。

    Polyacetals, preparation thereof and use thereof in detergents
    17.
    发明授权
    Polyacetals, preparation thereof and use thereof in detergents 失效
    聚缩醛,其制备方法及其在洗涤剂中的应用

    公开(公告)号:US5399286A

    公开(公告)日:1995-03-21

    申请号:US104154

    申请日:1993-08-20

    CPC分类号: C11D3/3711 C08G2/14 C08G2/18

    摘要: Polyacetals useful as detergent additives contain units of the formula ##STR1## where R is hydrogen, C.sub.1 -C.sub.4 -alkyl or COOM,M is C.sub.1 -C.sub.4 -alkyl or an alkali metal, ammonium or alkanolamine group, andm is from 0 to 9,have K values (determined by the method of H. Fikentscher on the sodium salt in 1% strength by weight aqueous solution at 25.degree. C. and pH 7) of at least 8.5, and are prepared by polymerizing compounds of the formula ##STR2## where R is hydrogen, C.sub.1 -C.sub.4 -alkyl or COOM,M is C.sub.1 -C.sub.4 -alkyl or an alkali metal, ammonium or alkanolamine group,R.sup.2 is C.sub.1 -C.sub.4 -alkyl, andm is from 0 to 9,in the presence of initiators and optionally comonomers with or without hydrolysis of the ester groups.

    摘要翻译: PCT No.PCT / EP92 / 00332 Sec。 371日期:1993年8月20日 102(e)日期1993年8月20日PCT提交1992年2月18日PCT公布。 第WO92 / 15629号公报 可用作洗涤剂添加剂的聚缩醛包含式“IMAGE”的单元,其中R是氢,C 1 -C 4 - 烷基或COOM,M是C 1 -C 4 - 烷基或碱金属,铵或链烷醇胺基, 并且m为0至9,具有至少8.5的K值(通过H.Fikentscher在钠盐上的在1%重量比的25℃和pH7的水溶液中的方法测定)为8.5,并且由 聚合化学式为“IMAGE”的化合物,其中R是氢,C 1 -C 4烷基或COOM,M是C 1 -C 4烷基或碱金属,铵或烷醇胺基,R 2是C 1 -C 4 - 烷基,m是 在引发剂和任选的具有或不具有酯基水解的共聚单体的存在下进行。

    Process for the preparation of aqueous polyurethane dispersions
    20.
    发明授权
    Process for the preparation of aqueous polyurethane dispersions 失效
    水性聚氨酯分散液的制备方法

    公开(公告)号:US4314922A

    公开(公告)日:1982-02-09

    申请号:US231720

    申请日:1981-02-05

    摘要: A process for preparing aqueous polyurethane dispersions has been discovered which comprises(a) forming a polyurethane solution by reacting an organic polyisocyanate in the presence of a solvent with(i) an acrylic ester diol having a molecular weight of between 146 and 3,000;(ii) an organic polyhydroxyl compound other than (i) having a molecular weight between 400 and 5,000 selected from the group consisting of polyester polyols, polyether polyols, polycarbonates, polylactones, and mixtures thereof; and(iii) a chain extender having a molecular weight between 62 and 400 selected from the group consisting of diols, triols, diamines, aminoalcohols, and mixtures thereof;(b) forming an anionic polyurethane addition product by reacting said polyurethane solution with a mercaptocarboxylic acid salt in the presence of a solvent;(c) adding water; and(d) removing the solvent.The dispersions can be used in a variety of applications. For instance, they can be used to prepare films, coating, and binders.

    摘要翻译: 已经发现了一种制备水性聚氨酯分散体的方法,其包括(a)通过有机多异氰酸酯在溶剂存在下与(i)分子量为146至3,000的丙烯酸酯二醇反应形成聚氨酯溶液; (ii)除(i)分子量为400-5000之外的有机多羟基化合物,其选自聚酯多元醇,聚醚多元醇,聚碳酸酯,聚内酯及其混合物; 和(iii)分子量在62和400之间的扩链剂,其选自二醇,三醇,二胺,氨基醇及其混合物; (b)通过在溶剂存在下使所述聚氨酯溶液与巯基羧酸盐反应形成阴离子聚氨酯加成产物; (c)加水; 和(d)除去溶剂。 分散体可用于各种应用。 例如,它们可用于制备膜,涂层和粘合剂。