Amphoteric condensates and their use in retanning
    2.
    发明授权
    Amphoteric condensates and their use in retanning 失效
    两性缩合物及其在复鞣中的应用

    公开(公告)号:US4675021A

    公开(公告)日:1987-06-23

    申请号:US694278

    申请日:1985-01-24

    摘要: Amphoteric condensates of the general formula I ##STR1## where A is a benzene or naphthyl radical, B is a radical derived from the group consisting of urea, biuret, dicyanodiamide or melamine, or a mixture of these radicals, X is --CH.sub.2 --COOH, CH.sub.3 --CH--COOH, CH.sub.3 --CH.sub.2 --CH--COOH, (CH.sub.3).sub.2 C--COOH or --CH.sub.2 --CH.sub.2 --COOH, R is H, alkyl of 1 to 4 carbon atoms or one of the radicals, X, Y is --CH.sub.2 SO.sub.3 H or --SO.sub.3 H, Z is alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms, m is from 1 to 10, n is from 0 to 5, p is from 0 to 2, q is from 0 to 2, and o is 4-(p+q) if A is benzene, and is 6-(p+q) if A is naphthyl, and their alkali metal and ammonium salts for retanning, and a process for retanning and dyeing mineral tanned leathers

    摘要翻译: 其中A是苯或萘基的通式I(I)的两性缩合物,B是衍生自脲,缩二脲,二氰酰胺或三聚氰胺的基团,或这些基团的混合物,X是 - CH2-COOH,CH3-CH-COOH,CH3-CH2-CH-COOH,(CH3)2C-COOH或-CH2-CH2-COOH,R是H,1至4个碳原子的烷基或一个基团X ,Y为-CH 2 SO 3 H或-SO 3 H,Z为碳原子数1〜4的烷基或碳原子数1〜4的烷氧基,m为1〜10,n为0〜5,p为0〜2,q为 0至2,如果A为苯,则为4-(p + q),如果A为4-,则为6-(p + q)

    Resinous emulsion comprising microparticles for coating use and
preparation thereof
    3.
    发明授权
    Resinous emulsion comprising microparticles for coating use and preparation thereof 失效
    包含用于涂布的微粒和其制备的树脂乳液

    公开(公告)号:US4530946A

    公开(公告)日:1985-07-23

    申请号:US585595

    申请日:1984-03-02

    摘要: A resinous emulsion is prepared by copolymerizing .alpha.,.beta.-ethylenically unsaturated monomers and a crosslinking monomer which is at least difunctional, in an aqueous medium in the presence of a resin having an amphoionic group of the formula: ##STR1## wherein R represents substituted or unsubstituted C.sub.1 -C.sub.6 alkylene or phenylene and Y is --COOH or --SO.sub.3 H, or in the presence of a resin having the above said amphoionic group and a polymerizable .alpha.,.beta.-unsaturated bonding. The thus obtained emulsion is useful for the obtainment of crosslinked polymer microparticles to be incorporated in a high solid coating composition or for the preparation of aqueous coating composition because of having contained no harmful emulsifier or surfactant.

    摘要翻译: 在具有下式的两性基团的树脂的存在下,在水性介质中共聚α,β-烯属不饱和单体和至少二官能的交联单体制备树脂乳液,其中R表示取代或 未取代的C1-C6亚烷基或亚苯基,Y为-COOH或-SO3H,或在具有上述所述两性基团的树脂和可聚合α,β-不饱和键的存在下。 由此获得的乳液可用于获得掺入高固体涂料组合物中的交联聚合物微粒或由于不含有害乳化剂或表面活性剂而制备水性涂料组合物。

    Modified melamine-formaldehyde condensation products
    5.
    发明授权
    Modified melamine-formaldehyde condensation products 失效
    改性三聚氰胺 - 甲醛缩合产物

    公开(公告)号:US4250069A

    公开(公告)日:1981-02-10

    申请号:US49892

    申请日:1979-06-19

    申请人: Raymond W. Yates

    发明人: Raymond W. Yates

    CPC分类号: C08G12/38 C08G12/34 D21H17/49

    摘要: Improved resins are obtained by substituting urea for part of the melamine in known cationic water-soluble resins obtained by interaction of melamine, an aliphatic hydroxymonoamine such as triethanolamine, and formaldehyde. The new resins, which have molar ratios melamine:urea:hydroxyamine:formaldehyde in the range 1:0.25-8:0.1-2.5:4-30, have a faster curing rate and better stability in the liquid state for a given content of formaldehyde.

    摘要翻译: 通过将三聚氰胺,脂肪族羟基单胺如三乙醇胺和甲醛的相互作用获得的已知阳离子水溶性树脂中的部分三聚氰胺代替脲来获得改进的树脂。 具有摩尔比三聚氰胺:脲:羟胺:甲醛在1:0.25-8:0.1-2.5:4-30范围内的新树脂对于给定含量的甲醛具有更快的固化速率和更好的液态稳定性 。