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    • 24. 发明授权
    • Water-insoluble melamine-formaldehyde resins
    • 水不溶性三聚氰胺 - 甲醛树脂
    • US5530031A
    • 1996-06-25
    • US303464
    • 1994-09-09
    • Erhard GuentherWolfgang ReutherUwe Kirchgassner
    • Erhard GuentherWolfgang ReutherUwe Kirchgassner
    • C08G12/34C08G14/06D01F6/74C08J11/04
    • D01F6/74C08G14/06
    • Water-insoluble condensation products, obtained by the condensation of a mixture containing as essential components(A) from 80 to 99.9 mol %, based on the sum of (A), (B) and (C), of a mixture consisting essentially of(a) from 30 to 99 mol % of melamine and(b) from 1 to 70 mol % of a substituted melamine of the formula I ##STR1## where X, X' and X" are each selected from the group consisting of --NH.sub.2, --NHR and --NRR', and X, X' and X" are not all --NH.sub.2 at one and the same time, and R and R' are each selected from the group consisting of hydroxy-C.sub.2 -C.sub.10 -alkyl, hydroxy-C.sub.2 -C.sub.4 -alkyl-(oxa-C.sub.2 -C.sub.4 -alkyl).sub.n, where n is from 1 to 5, and amino-C.sub.2 -C.sub.12 -alkyl, or mixtures of melamines I,(B) from 0.1 to 10 mol %, based on the sum of (A), (B) and (C) of a polyurea of the formula II ##STR2## and (C) up to 10 mol %, based on the sum of (A), (B) and (C), of substituted or unsubstituted phenols,with formaldehyde or formaldehyde source compounds in a molar ratio of melamines to formaldehyde within the range of from 1:1.15 to 1:4.5.
    • 基于(A),(B)和(C)的总和,将基本组分(A)作为必要组分(A)的80至99.9摩尔%的混合物缩合得到的水不溶性缩合产物, (a)30至99摩尔%的三聚氰胺和(b)1至70摩尔%的式I的取代三聚氰胺,其中X,X'和X“各自选自 -NH 2,-NHR和-NRR',X,X'和X“不是全部是-NH 2,R和R'各自选自羟基-C 2 -C 10 - 烷基,羟基-C 2 -C 4烷基 - (氧杂-C 2 -C 4 - 烷基)n,其中n为1至5,和氨基-C 2 -C 12烷基,或三聚氰胺I,(B)的混合物为0.1至 基于式(II)和(C)的聚脲(A),(B)和(C)的总和(A),(C)的总和为10摩尔% (B)和(C),取代或未取代的酚与甲醛或甲醛源化合物的三聚氰胺与甲醛的摩尔比在 范围为1:1.15至1:4.5。