C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 14/10 (2006.01)
Patent
CA 2073553
BASFASTIENGESELLSCHAFT o.z.0050/42545 Modified Melamine-Formaldehyde Resin Abstract of the disclosure: A condensation polymer, obtainable by condensation of a mixture containing, as chief components, (A) from 90 to 99.9 % of a 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 Image (I) in which x, x', and x" are selected from the group consisting of -NH2, -NHR, and -NRR', and only one or two of x, x', and x" denote(s) -NH2, and R and R' are selected from the group consisting of hydroxy-C2-C10-alkyl, hydroxy-C2-C4-alky)-(oxa- C2-C4-alkyl)n, where n is an integer from 1 to 5, and annino- C2-C12-alkyl, or mixtures of melamines 1, 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 C1-C9- alkyl and hydroxy, or of C1-C4-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. 12
Berbner Heinz
Fath Wolfgang
Fikentscher Rolf
Reuther Wolfgang
Voelker Heinz
Basf Aktiengesellschaft
Robic
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