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METHOD FOR MODIFIED AMINOPLAST COMPOUND, AMINOPLAST COMPOUND PRODUCED THEREBY, AND COATING MATERIAL CONTAINING THE SAME
METHOD FOR MODIFIED AMINOPLAST COMPOUND, AMINOPLAST COMPOUND PRODUCED THEREBY, AND COATING MATERIAL CONTAINING THE SAME
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机译:改性的铝塑复合材料的方法,由此生产的铝塑复合材料以及包含相同材料的涂层材料
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摘要
PROBLEM TO BE SOLVED: To provide a method for decreasing molecular weight of an aminoplast compound, to obtain the aminoplast compound by this method, and the coating material composition containing the aminoplast compound of decreased molecular weight. ;SOLUTION: This aminoplast compound of decreased molecular weight is obtained by reacting (A) an aminoplast compound with a reactive substituent on the nitrogen atom in the amino group, the reactive substituent being selected from the group consisting of NH, alkylol, alkoxy, alkoxyalkyl and a mixture thereof, with (B) at least one carbamic acid ester selected from the group consisting of (substituted) primary carbamic acid ester, (substituted) secondary carbamic acid ester and a mixture thereof, at below 150°C and atmospheric pressure to 20 atm in the presence of a primary or secondary alcohol, to substitute at least one equivalent to E-1/E equivalents of the amino substituent on the aminoplast by the functional group in the carbamic acid ester, thereby forming the aminoplast compound with the functional group (E is equivalent number of the reactive substituent per mol of the aminoplast compound).;COPYRIGHT: (C)1999,JPO
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