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    • 3. 发明授权
    • Aqueous self-dispersible epoxy resin based on epoxy-amine adducts
    • 基于环氧胺加合物的水性自分散环氧树脂
    • US5874490A
    • 1999-02-23
    • US739979
    • 1996-10-30
    • Kartar S. AroraJohn G. PapalosGrannis S. Johnson
    • Kartar S. AroraJohn G. PapalosGrannis S. Johnson
    • C08G59/06C08G59/10C08L63/00C09D163/00C08K3/20C08L63/02
    • C08G59/066C08G59/10C08L63/00C09D163/00
    • There is disclosed a self-dispersing curable epoxy resin composition comprising the addition product of reactants comprising (a) 1.0 reactive equivalent of an epoxy resin, (b) from about 0.40 to 0.95 reactive equivalents of a polyhydric phenol, and (c) from about 0.005 to 0.5 reactive equivalents of an amine-epoxy adduct comprising the addition product of reactants comprising 1.0 reactive equivalent of a polyepoxide and from about 0.3 to 0.9 reactive equivalents of a polyoxyalkyleneamine with the structural formulaH.sub.2 N--CH(R.sub.2)CH.sub.2 --O--R.sub.1 --CH.sub.2 CH(R.sub.2)--NH.sub.2wherein:R.sub.1 represents a polyoxyalkylene chain having the structural formula:(CH.sub.2 --CH.sub.2 --O).sub.a --(CH.sub.2 --CH(R.sub.3)--O).sub.bwherein:R.sub.3 is a monovalent organic radical selected from the group consisting of C.sub.1 to C.sub.4 aliphatic hydrocarbons,`a` designates a number of ethoxy groups (CH.sub.2 --CH.sub.2 --O),`b` designates a number of monosubstituted ethoxy groups (CH.sub.2 --CH(R.sub.3)O), the sum of `a` and `b` is equal to or greater than 10 but less than or equal to 300, and where the ratio of `a` to `b` is between 1:0 and 1:1. For any values of `a` and `b` the sequence of ethoxy and monosubstituted ethoxy groups within a polyoxyalkylene chain may be completely random and/or there may be blocks of ethoxy and/or monosubstituted ethoxy groups.R.sub.2 designates hydrogen or a monovalent organic radical selected from the group consisting of C.sub.1 to C.sub.4 aliphatic hydrocarbons.
    • 公开了一种自分散可固化环氧树脂组合物,其包含反应物的加成产物,其包含(a)1.0反应当量的环氧树脂,(b)约0.40至0.95反应性当量的多元酚,和(c)约 0.005至0.5反应当量的胺 - 环氧加合物,其包含反应物的加成产物,其包含1.0反应性当量的聚环氧化物和约0.3至0.9反应当量的具有结构式为H 2 -NH-CH(R 2)CH 2 -O-R 1 - 的聚氧亚烷基胺, CH2CH(R2)-NH2其中R1表示具有以下结构式的聚氧化烯链:(CH 2 -CH 2 -O)a - (CH 2 -CH(R 3)-O)b)其中R 3是选自以下的一价有机基团: C1-C4脂族烃,'a'表示多个乙氧基(CH 2 -CH 2 -O),'b'表示多个单取代的乙氧基(CH 2 -CH(R 3)O)),'a'和 'b'等于或大于10但小于或等于300,而大鼠 “a”到“b”的io在1:0和1:1之间。 对于“a”和“b”的任何值,聚氧化烯链中的乙氧基和单取代的乙氧基的顺序可以是完全随机的,和/或可以有乙氧基和/或单取代的乙氧基的嵌段。 R2表示氢或选自C1-C4脂族烃的一价有机基团。
    • 7. 发明授权
    • Superplasticizers for cementitious compositions
    • 水泥组合物的超增塑剂
    • US4441929A
    • 1984-04-10
    • US411034
    • 1982-08-24
    • Alphonso W. MarcellisGrannis S. JohnsonJoseph P. Fleming
    • Alphonso W. MarcellisGrannis S. JohnsonJoseph P. Fleming
    • C04B28/04C04B7/35
    • C04B28/04
    • Superplasticizers for cementitious compositions are produced from a raw material mixture of (1) naphthalenesulfonic acid formaldehyde condensate and (2) free sulfuric acid using a 1-step process or a 2-step process. In the 1-step process, the mixture is neutralized with a zinc compound such as zinc oxide to a pH of about 2 to obtain a superplasticizer mixture of the free acid of the naphthalenesulfonic acid formaldehyde condensate and zinc sulfate. In the 2-step process, the mixture is first neutralized with a zinc compound such as zinc oxide to a pH of about 2 and then with a base such as sodium hydroxide to a pH of about 6 to obtain a superplasticizer mixture of the sodium salt of the naphthalenesulfonic acid formaldehyde condensate and zinc sulfate. These superplasticizer mixtures are superior to a low salt content commercial sodium salt of a naphthalenesulfonic acid formaldehyde condensate where sodium sulfate content has been reduced by lime treatment.
    • 用于水泥组合物的超增塑剂由(1)萘磺酸甲醛缩合物和(2)游离硫酸的原料混合物使用1步法或2步法制备。 在一步法中,将混合物用锌化合物如氧化锌中和至约2的pH,以获得萘磺酸甲醛缩合物的游离酸和硫酸锌的超增塑剂混合物。 在两步法中,首先用锌化合物如氧化锌将混合物中和至约2的pH,然后用碱如氢氧化钠中和至pH约6,得到钠盐的超增塑剂混合物 的萘磺酸甲醛缩合物和硫酸锌。 这些超增塑剂混合物优于通过石灰处理使硫酸钠含量降低的萘磺酸甲醛缩合物的低盐含量的商业钠盐。