会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Modified melamine-formaldehyde resins
    • 改性三聚氰胺 - 甲醛树脂
    • US5322915A
    • 1994-06-21
    • US910382
    • 1992-07-08
    • Juergen WeiserWolfgang ReutherRolf FikentscherWolfgang FathHeinz BerbnerHans D. ZettlerHeinz Voelker
    • Juergen WeiserWolfgang ReutherRolf FikentscherWolfgang FathHeinz BerbnerHans D. ZettlerHeinz Voelker
    • C08G14/09C08G14/06C08G14/10
    • C08G14/10
    • A condensation polymer, obtainable by condensation of a mixture containing, as chief components,(A) from 90 to 99.9% molar of a mixture substantially consisting of(a) from 30 to 99% molar of melamine and(b) from 1 to 70% molar of a substituted melamine of the general formula I ##STR1## in which X, X', and X" are selected from the group consisting of --NH.sub.2, --NHR, and --NRR', and only one or two of X, X', and X" denote(s) --NH.sub.2, and R and R' are 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 an integer from 1 to 5, and amino-C.sub.2 -C.sub.12 -alkyl, or mixtures of melamines I, and(B) from 0.1 to 10% molar, based on (A) and (B), of unsubstituted phenols or phenols substituted by radicals selected from the group consisting of C.sub.1 -C.sub.9 -alkyl and hydroxy, or of C.sub.1 -C.sub.4 -alkanes substituted by two or three phenol groups, di(hydroxyphenyl)sulfones, or mixtures of said phenols,with formaldehyde or formaldehyde-liberating compounds, the molar ratio of melamine to formaldehyde ranging from 1:1.15 to 1:4.5.
    • 缩合聚合物,其可通过以主要组分(A)为90至99.9%摩尔的混合物缩合获得,该混合物基本上由(a)30至99%摩尔的三聚氰胺和(b)1至70 %摩尔的通式I的取代三聚氰胺(I)其中X,X'和X“选自-NH 2,-NHR和-NRR',并且只有一个或 X,X'和X“中的两个表示(s)-NH 2,R和R'选自羟基-C 2 -C 10 - 烷基,羟基-C 2 - C 4 - 烷基 - (氧杂-C2 -C 1-4 - 烷基)n,其中n为1至5的整数,氨基-C 2 -C 12 - 烷基或三聚氰胺I和(B)的混合物为0.1至10摩尔%,基于(A)和( B)的未取代的酚或被选自C 1 -C 9 - 烷基和羟基的基团或被两个或三个苯酚基取代的C 1 -C 4烷烃取代的酚,二(羟基苯基)砜或所述 酚,与甲醛或甲醛释放化合物,摩尔 三聚氰胺与甲醛的比例范围为1:1.15至1:4.5。