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    • 7. 发明授权
    • Composition of epoxysilane emulsion additives in water based reactive
polymer dispersions and methods of preparation
    • 环氧硅烷乳液添加剂在水性反应性聚合物分散体中的组成及制备方法
    • US5714532A
    • 1998-02-03
    • US735055
    • 1996-11-07
    • Frederick D. OsterholtzEric R. PohlMing J. ChenAntonio Chaves
    • Frederick D. OsterholtzEric R. PohlMing J. ChenAntonio Chaves
    • C08K5/54C08K5/15C08K5/5435C08L83/06C08L101/00C09D133/06C09D183/06C09D201/00
    • C08K5/5435C09D133/064C09D183/06
    • The present invention provides stable epoxy silane emulsions and methods for the preparation of a stable epoxy-silane emulsions comprising: (I) a water insoluble or slightly soluble epoxysilane; (II) an emulsifier; (III) water; and (IV) a water dispersible polymer containing a functional group with an active hydrogen. Also provided are two part systems such that an epoxysilane emulsion comprising components (I)-(III) are combined and the component (IV) may be added upon use of components (I) to (III). Moreover, additional components (V), such as catalysts and pH buffers may be added. Said compositions may be used for, among other things, coatings, adhesives and sealants. The water dispersible or slightly soluble epoxy functional silane for use herein are of the general structure R.sup.1.sub.a R.sup.2.sub.b Si(OR.sup.3).sub.4-a-b where R.sup.1 is an epoxy substituted alkyl or aralkyl group, where the alkyl may have from four to thirty carbon atoms, R.sup.3 is an alkyl or alkoxy-substituted alkyl, aryl or aralkyl group having from two to ten carbon atoms, R.sup.2 is an alkyl group or alkoxy substituted alkyl, aryl or aralkyl group having from one to ten carbon atoms, a is one to three, and b is zero to two, with the proviso that a+b is 1, 2, or 3. R.sup.1, R.sup.2, and R.sup.3 group may be cyclic, branched or linear.
    • 本发明提供稳定的环氧硅烷乳液和制备稳定的环氧硅烷乳液的方法,包括:(I)水不溶性或微溶环氧硅烷; (II)乳化剂; (三)水; 和(IV)含有具有活性氢的官能团的水分散性聚合物。 还提供了两部分系统,使得包含组分(I) - (III)的环氧硅烷乳液组合,并且组分(IV)可以在使用组分(I)至(III)时加入。 此外,可以加入另外的组分(V),例如催化剂和pH缓冲剂。 除其他外,所述组合物可用于涂料,粘合剂和密封剂。 用于本文的水分散性或微溶性环氧官能化硅烷具有通式结构R1aR2bSi(OR3)4-ab,其中R1是环氧取代的烷基或芳烷基,其中烷基可以具有4至30个碳原子,R 3是 烷基或烷氧基取代的烷基,具有2至10个碳原子的芳基或芳烷基,R 2是烷基或烷氧基取代的烷基,具有1至10个碳原子的芳基或芳烷基,a是1至3,b是 0至2,条件是a + b为1,2或3.R 1,R 2和R 3基团可以是环状,支链或直链的。