Hindered amine light stabilizers based on multi-functional carbonyl compounds and methods of making same
申请人:——
公开号:US20020099218A1
公开(公告)日:2002-07-25
Compounds and methods of preparing compounds of the formula:
RZ—CO—CR
a
R
b
—(CR
c
R
d
)
n
—NH—(Y)
m
—CO—A (I)
wherein n is an integer from 1 to 15, m is either 0 or 1; R
a
, R
b
, R
c
, and R
d
are each a hydrogen or a hydrocarbyl group; Y is CO—(CR
e
R
f
)
p
, wherein R
e
and R
f
are each a hydrogen or hydrocarbyl group and p is zero or an integer from 1 to 20 or CO—C
6
H
4
—, 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; Z is —O— or —NG—, wherein G is H, C
1
-C
12
alkyl or the radical R; wherein R is
1
wherein R
1
is hydrogen, C
1
-C
18
alkyl, O, OH, CH
2
CN, C
1
-C
18
alkoxy, C-C
18
hydroxyalkoxy, C
5
-C
12
cycloalkoxy, C
5
-C
12
hydroxycycloalkoxy, C
3
-C
6
alkenyl, C
1
-C
18
alkynyl, C
7
-C
9
phenylalkyl, unsubstituted or substituted on the phenyl with 1, 2 or 3 C
1
-C
4
alkyls, or an aliphatic C
1
-C
8
acyl; R
2
is hydrogen, C
1
-C
8
alkyl, or benzyl; R
3
, R
4
, R
5
, and R
6
are each a hydrogen, C
1
-C
8
alkyl, benzyl or phenethyl, or two geminal R moieties, which together with the carbon to which they are attached form a C
5
-C
10
cycloalkyl; and A is either ZR or a hydrocarbyl group, which are useful for stabilizing polymer compositions against photo- and thermal degradation.
该公式的化合物及其制备方法:RZ—CO—CRaRb—(CRcRd)n—NH—(Y)m—CO—A(I)其中n是1到15之间的整数,m为0或1;Ra、Rb、Rc和Rd分别是
氢或烃基团;Y是CO—(CReRf)p,其中Re和Rf分别是
氢或烃基团,p为0或1到20之间的整数,或CO—
C6H4—,其中
苯环上的取代模式为邻位、间位或对位取代模式,
苯环的一个或多个
氢原子可能被烃基团或功能基团取代;Z是—O—或—NG—,其中G是H、C1-C12烷基或基团R;其中R是1其中R1是
氢、C1-C18烷基、O、OH、CH2CN、C1-C18甲
氧基、C-C18羟基甲
氧基、C5-C12环
氧基、C5-C12羟基环
氧基、C3-C6
烯基、C1-C18炔基、C7-C9
苯基烷基,
苯基上未取代或取代1、2或3个C1-C4烷基,或
脂肪族C1-C8酰基;R2是
氢、C1-C8烷基或
苄基;R3、R4、R5和R6分别是
氢、C1-C8烷基、
苄基或
苯乙基,或两个共轭的R基,与它们附着的
碳形成C5-C10
环烷基;A是ZR或烃基团,可用于稳定
聚合物组合物对光和热降解的影响。