METHODS OF PRODUCING WATER-SOLUBLE, NON-TURBID COPOLYMERS OF AT LEAST ONE WATER-SOLUBLE N-VINYLLACTAM AND AT LEAST ONE HYDROPHOBIC COMONOMER
    1.
    发明申请
    METHODS OF PRODUCING WATER-SOLUBLE, NON-TURBID COPOLYMERS OF AT LEAST ONE WATER-SOLUBLE N-VINYLLACTAM AND AT LEAST ONE HYDROPHOBIC COMONOMER 有权
    生产水溶性方法,至少一种水溶性N-乙烯基甲酰胺和至少一种疏水性共聚物的非涡轮共聚物

    公开(公告)号:US20080125554A1

    公开(公告)日:2008-05-29

    申请号:US11947223

    申请日:2007-11-29

    IPC分类号: C08F4/36

    CPC分类号: C08F2/06

    摘要: Methods of producing vinyllactam copolymers which include: providing at least one water-soluble N-vinyllactam; providing at least one hydrophobic comonomer; and subjecting the at least one water-soluble N-vinyllactam and the at least one hydrophobic comonomer to free-radical polymerization in an organic solvent in the presence of an initiator, under a combination of process measures selected from the group consisting of A and B; wherein:(A) comprises (i) polymerization under reflux, and at least two of (ii), (iii), (iv), (v), (vi), and (vii), wherein (ii) comprises an addition of at least 5 mol % of N-vinyllactam to the polymerization mixture if at least 70 mol % of the total amount of hydrophobic monomer used have completely reacted, (iii) comprises return of condensate formed in the reflux from below to the polymerization mixture, (iv) comprises introduction of the initiator in the form of a solution in an organic solvent from below into the polymerization mixture, (v) comprises addition of N-vinyllactam to the reflux, (vi) comprises distilling off a portion of the organic solvent and continuing the polymerization following conversion of 70 to 99% by weight of the N-vinyllactam used, and (vii) comprises introduction of at least one monomer from below into the polymerization mixture; and wherein(B) comprises (viii) polymerization under a superatmospheric pressure such that vaporization of the polymerization components is avoided, and at least one of (i), (ii), (iii), (iv), (v), (vi), and (vii), with the proviso that a combination of (viii) with any of (i), (iii) or (v) is carried out sequentially.

    摘要翻译: 制备乙烯基内酰胺共聚物的方法包括:提供至少一种水溶性N-乙烯基内酰胺; 提供至少一种疏水性共聚单体; 以及在引发剂存在下,使所述至少一种水溶性N-乙烯基内酰胺和所述至少一种疏水性共聚单体在有机溶剂中进行自由基聚合,所述方法选自A和B ; 其中:(A)包括(i)在回流下聚合,和(ii),(iii),(iv),(v),(vi)和(vii)中的至少两个,其中(ii) 的至少5摩尔%的N-乙烯基内酰胺加入到聚合混合物中,如果使用的疏水性单体总量的至少70摩尔%已经完全反应,(iii)包括将从回流中形成的缩合物返回到聚合混合物中, (iv)包括将引发剂以有机溶剂形式从有机溶剂中引入聚合混合物中,(v)包括向回流物中加入N-乙烯基内酰胺,(vi)包括蒸馏除去一部分有机溶剂 并且在所使用的N-乙烯基内酰胺的70至99重量%的转化后继续聚合,和(vii)包括将下述至少一种单体引入聚合混合物中; (ⅰ),(ⅱ),(ⅲ),(ⅳ),(ⅴ),(Ⅴ),(Ⅴ),(Ⅳ),(Ⅳ), vi)和(vii),条件是(viii)与(i),(iii)或(v)中任何一个的组合依次进行。

    Thickeners for aqueous dispersions
    5.
    发明授权
    Thickeners for aqueous dispersions 失效
    增稠剂用于水性分散体

    公开(公告)号:US06803405B1

    公开(公告)日:2004-10-12

    申请号:US10088521

    申请日:2002-03-29

    IPC分类号: C08L3104

    CPC分类号: C08F226/10 C08F218/08

    摘要: The invention relates to the aqueous preparation of a polymer. Said preparation contains a copolymer consisting of a) 30 to 79.5 wt. % N-vinylpyrrolidone, b) 20 to 69.5 wt. % vinylacetate, c) 0.5 to 25 wt % of a monovinyl ester of a C4 to C20 monocarboxylic acid and d) 0 to 40 wt. % of an additional, copolymerisable, ethylenically unsaturated compound.

    摘要翻译: 本发明涉及聚合物的水性制剂。 所述制备物包含由以下组分组成的共聚物:a)30〜79.5重量% %N-乙烯基吡咯烷酮,b)20〜69.5重量% %乙酸乙烯酯,c)0.5〜25重量%的C4〜C20一元羧酸的单乙烯基酯,以及d)0〜40重量% %的另外的可共聚的烯属不饱和化合物。

    Binders for cathodic electrocoating
    7.
    发明授权
    Binders for cathodic electrocoating 失效
    阴极电泳用粘合剂

    公开(公告)号:US4713406A

    公开(公告)日:1987-12-15

    申请号:US934623

    申请日:1986-11-25

    摘要: Binders for cathodic electrocoating which are based on polyadducts/polycondensates which carry basic nitrogen groups and are rendered water-dilutable by protonation with an acid, and one or more crosslinking agents for these polyadducts/polycondensates, their use and electrocoating baths prepared from them.These binders essentially consist of a mixture of(A) from 50 to 90% by weight of a polyadduct/polycondensate which carries basic nitrogen groups and is obtainable by reacting(a) an essentially epoxide-free adduct of a secondary amine and polyepoxide compound with(b) a condensate of a diamine/polyepoxide adduct which is prepared in the presence of excess diamine and separated off from excess diamine after complete conversion of the epoxide groups, with one or more mono- and/or dicarboxylic acids of not less than 6 carbon atoms.(B) from 10 to 50% by weight of a crosslinking agent which does not react with component (A) at room temperature but reacts with the latter at elevated temperatures with crosslinking.These binders are particularly useful for the cathodic electrocoating of electrically conductive substrates.

    摘要翻译: 用于阴极电泳的粘合剂,其基于承载碱性氮基并通过用酸质子化而被水稀释的聚加合物/缩聚物,以及一种或多种用于这些聚加合物/缩聚物的交联剂,它们的用途和由它们制备的电泳浴。 这些粘合剂基本上由(A)50-90%重量的承载碱性氮基团的聚加合物/缩聚物组成,可通过使(a)仲胺和聚环氧化物化合物的基本上不含环氧化物的加合物与 (b)二胺/聚环氧化物加合物的缩合物,其在过量二胺存在下制备并在完全转化环氧基之后与过量二胺分离,与一种或多种不少于6个的单 - 和/或二羧酸 碳原子。 (B)10至50重量%的交联剂,其在室温下不与组分(A)反应,但在高温下与交联反应。 这些粘结剂特别适用于导电基材的阴极电涂层。

    Surface coating binders which are self-crosslinking when heated, their
preparation and their use
    10.
    发明授权
    Surface coating binders which are self-crosslinking when heated, their preparation and their use 失效
    加热时自交联的表面涂层粘合剂,它们的制备及其用途

    公开(公告)号:US4542173A

    公开(公告)日:1985-09-17

    申请号:US547091

    申请日:1983-10-31

    摘要: The present invention relates to surface coating binders which are self-crosslinking when heated and are based on resin-like polyadducts, polycondensates or polymers. These binders have a mean molecular weight M.sub.n of from 500 to 10,000 and contain, on average per molecule, at least two groups of the general formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and are each hydrogen or a methyl or ethyl radical, and additionally contain hydroxyl and/or primary and/or secondary amino groups and may or may not contain tertiary amino groups.They can be prepared by reacting appropriate resins containing primary amino groups with cyclic carbonates, and can be used, in solution in an organic solvent, as baking finishes, as well as for the preparation of cathodic electrocoating finishes.

    摘要翻译: 本发明涉及加热时自交联且基于树脂状聚合物,缩聚物或聚合物的表面涂层粘合剂。 这些粘合剂的平均分子量&Upbar&Mn为500至10,000并且平均每分子含有至少两个通式为“IMAGE”的基团,其中R 1,R 2,R 3和R 4相同或不同,各自为氢或 甲基或乙基,并且另外含有羟基和/或伯和/或仲氨基,并且可以含有或不含有叔氨基。 它们可以通过使含有伯氨基的合适的树脂与环状碳酸酯反应制备,并且可以在有机溶剂的溶液中用作烘烤表面处理,以及用于制备阴极电泳涂饰。