Oligomeric hindered amine light stabilizers based on multi-functional carbonyl compounds and methods of making same
申请人:Cytec Technology Corp.
公开号:US06414155B1
公开(公告)日:2002-07-02
Oligomeric compounds and methods of making the compound having the formula:
wherein i, j, k, and l are integers from about 0 to 300 and the sum of i, j, k, and l is greater than 2, wherein the units F, F′ and T are derived from one or more multi-functional carbonyl compounds of general structure
DO—CO—CRaRb—(—CRcCRd—)n—NH—(Y)m—CO—OD (IV)
wherein n is an integer from 1 to 15, m is either 0 or 1; Ra, Rb, Rc, and Rd, are each a hydrogen or a hydrocarbyl group; Y is CO—(CReRf)p, wherein Re and Rf are each a hydrogen or hydrocarbyl group and p is zero or an integer from 1 to 20 or CO—C6H4—, wherein the substitution pattern on the phenylene group is an ortho, meta, or para substitution pattern, and one or more of the hydrogens of the phenylene group may be substituted by a hydrocarbyl group or a functional group; and D is a hydrocarbyl group and the units E, E′ and S are derived from one or more 1-substituted piperidin-4-ol or 4-aminopiperidines of general structure
wherein Z is OH or NHG, wherein G is H or C1-C12 alkyl, R1 is —(CH2)s—OH or —(CH2)s—NH2, wherein s is an integer from 1 to 10; R2 represents hydrogen, C1-C8 alkyl, or benzyl; R3, R4, R5, and R6 are each a hydrogen, C1-C8 alkyl, benzyl or phenethyl, or two geminal R moieties, which together with the carbon to which they are attached form a C5-C10 cycloalkyl. The compounds are useful for stabilizing polymer compositions against photo- and thermal degradation.
含有以下结构的化合物的制备方法:其中i、j、k和l是约为0到300的整数,且i、j、k和l的总和大于2,其中单位F、F'和T来源于一个或多个具有一般结构的多功能羰基化合物DO—CO—CRaRb—(—CRcCRd—)n—NH—(Y)m—CO—OD(IV),其中n是1到15之间的整数,m为0或1;Ra、Rb、Rc和Rd分别为氢或烃基;Y为CO—(CReRf)p,其中Re和Rf分别为氢或烃基,p为0或1到20之间的整数或CO—C6H4—,苯基上的取代模式为邻位、间位或对位取代模式,苯基的一个或多个氢原子可以被烃基或功能基取代;D为烃基,单位E、E'和S来源于一个或多个具有一般结构的1-取代哌啶-4-醇或4-氨基哌啶,其中Z为OH或NHG,G为H或C1-C12烷基,R1为—(CH2)s—OH或—(CH2)s—NH2,其中s为1到10之间的整数;R2表示氢、C1-C8烷基或苄基;R3、R4、R5和R6分别为氢、C1-C8烷基、苄基或苯乙基,或两个邻位R基,与它们连接的碳原子一起形成C5-C10环烷基。这些化合物可用于稳定聚合物组合物对光和热降解的影响。