申请人:VYSKUMNY USTAV CHEMICKEJ TECHNOLOGIE
VYSKUMNA A VYVOJOVA ORGANIZACIA
公开号:EP0357223A2
公开(公告)日:1990-03-07
The invention relates to new polyaminotriazines of the general formula /I/:
where Q, A¹ and A² are the same or different and mean the group -NR¹R², where R¹ is alkyl of 1 to 18 carbons, cyclohexyl or 2,2,6,6-tetramethyl-4-piperidyl; R² is hydrogen, alkyl of 1 to 12 carbons, cyclohexyl, and Q can also mean 1-piperidyl or 1-pyrrolidinyl; x is an integer from 2 to 12 and n is an integer from 2 to 20, which are efficient as polymer light stabilizers. The mentioned compounds are prepared by the reaction of the corresponding N,N-bis(2,2,6,6-tetramethyl-4-piperidyl)alkane diamine with 6-substituted 2,4-dichloro-1,3,5-triazine, which is used in the excess from 1 to 10 % mol at 140 to 220 oC in a hydrocarbon solvent, in the presence of the aqueous solution of an alkaline hydroxide under elevated pressure, or in the presence of a particulate alkaline hydroxide under the atmospheric pressure for 1 to 12 hours, to a chlorine-substituted oligomer which is treated under the same conditions with the corresponding amine.
The invention finds its use in the chemical industry.
本发明涉及通式/I/的新型聚氨基三嗪:
其中Q、A¹和A²相同或不同,指基团-NR¹R²,其中R¹是1至18个碳原子的烷基、环己基或2,2,6,6-四甲基-4-哌啶基;R²是氢、1至12个碳原子的烷基、环己基,Q也可以指1-哌啶基或1-吡咯烷基;x是2至12的整数,n是2至20的整数,它们是高效的聚合物光稳定剂。上述化合物是由相应的 N,N-双(2,2,6,6-四甲基-4-哌啶基)烷二胺与 6-取代的 2,4-二氯-1,3,5-三嗪在烃溶剂中于 140 至 220 摄氏度下反应制备而成、在高压下,在碱性氢氧化物水溶液的存在下,或在大气压下,在颗粒状碱性氢氧化物的存在下,经过 1 至 12 小时,生成氯取代的低聚物,该低聚物在相同条件下用相应的胺处理。
本发明可用于化学工业。