N-alkenyl substituted amine-N-oxide stabilizers

Details N-alkenyl substituted amine-N-oxide stabilizers N-alkenyl substituted amine-N-oxide stabilizers

1991-09-26

1992-11-10

Hollrah, Glennon H.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524238, 524241, 524247, 564297, 564299, 252 515A, C08L 2336

Patent

active

051624087

ABSTRACT:
N-Alkenyl substituted hydroxylamines of formula I ##STR1## where R.sub.1 and R.sub.2 are independently hydrogen, alkyl, aryl or phenylalkyl, and R.sub.3 to R.sub.7 are independently hydrogen, alkyl or substituted alkyl are very effective process stabilizers for polymeric systems providing melt flow stabilization and resistance to discoloration during processing at elevated temperatures as well as effective stabilizers for lubricant compositions.

REFERENCES:
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patent: 4029658 (1977-06-01), Samour
patent: 4666962 (1987-05-01), Ravichandran et al.
patent: 4696964 (1987-09-01), Ravichandran et al.
patent: 4757102 (1988-07-01), Ravichandran et al.
patent: 4876300 (1989-10-01), Seltzer et al.

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