申请人:Ciba-Geigy Corporation
公开号:US04288593A1
公开(公告)日:1981-09-08
Novel polyalkylpiperidine derivatives of s-triazines of the formula ##STR1## in which X and X' are a divalent organic radical, X", X.sub.1 and X.sub.2 are a direct bond or a divalent organic radical, Y, Y', Y", Y.sub.1, Y.sub.2, Z and Z' are --O--, --S--, --NH-- or --NR.sup.3 --, R is H or CH.sub.3 and R.sup.1, R.sup.2 and R.sup.3 are a monovalent organic radical or a polyalkylpiperidine group, or the group R.sup.1 --X"--Y"-- is chlorine, and R.sup.4 is H, O, alkyl, allyl or benzyl, are valuable stabilizers for polymeric materials, in particular to protect them against photochemical degradation. The derivatives are prepared by stepwise reaction of cyanuric chloride with the corresponding YH, Y'H and Y"H compounds. If 2 or 3 of these components are identical, the corresponding symmetrically substituted triazine compounds, which are preferred, are formed.
新颖的聚烷基哌啶衍生物s-三嗪的化学式为##STR1##其中X和X'是双价有机基,X"、X₁和X₂是直接键或双价有机基,Y、Y'、Y"、Y₁、Y₂、Z和Z'是--O--、--S--、--NH--或--NR³--,R是H或CH₃,R¹、R²和R³是单价有机基或聚烷基哌啶基团,或者R¹--X"--Y"--为氯,而R⁴是H、O、烷基、烯丙基或苄基,这些衍生物对聚合材料是有价值的稳定剂,特别是用于保护它们免受光化学降解。这些衍生物是通过氰尿酸氯与相应的YH、Y'H和Y"H化合物的逐步反应制备的。如果这些组分中有2个或3个是相同的,则形成相应的对称取代三嗪化合物,这些化合物是首选的。