06492521 is referenced by 4 patents and cites 13 patents.

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

wherein R

1

is hydrogen, C

1

-C

18

alkyl, O, OH, CH

2

CN, C

1

-C

18

alkoxy, C

1

-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.

Title
Hindered amine light stabilizers based on multi-functional carbonyl compounds and methods of making same
Application Number
10/45333
Publication Number
6492521 (B2)
Application Date
October 25, 2001
Publication Date
December 10, 2002
Inventor
Ram B Gupta
Stamford
CT, US
Thomas P Sassi
Stamford
CT, US
Agent
Valerie Didamo
US
Claire Schultz
US
James Jubinsky
US
Assignee
Cytec Technology
DE, US
IPC
C07D 401/12
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