Process for stabilizing polymer compositions against heat or lig

Details Process for stabilizing polymer compositions against heat or lig Process for stabilizing polymer compositions against heat or lig

1993-03-01

1994-04-05

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 99, 524291, C08K 53477, C08K 510

Patent

active

053005457

ABSTRACT:
N-(2,2,6,6-tetraalkyl-4-piperidinyl)amide-hydrazides of dicarboxylic acids contain a light stabilizing group, a heat stabilizing group, and a reactive hydrazide functionality in the same molecule. The reactive stabilizers are prepared by reacting 4-amino-2,2,6,6-tetraalkylpiperidines with diesters (or mono ester acid chlorides) of dicarboxylic acids or dialkyl itaconates followed by hydrazinolysis of the ester group of the intermediate mono esteramide. The compounds are useful for introducing permanent heat and light stability to coreactive polymers or copolymers. They are also useful in the stabilization of inert polymeric systems against the degradative effects of heat and light when merely mixed with, rather than reacted with, the polymers for which stabilization is sought.

REFERENCES:
patent: 3022345 (1962-02-01), Szmuszkovicz
patent: 3706797 (1972-12-01), McKillip et al.
patent: 3870680 (1975-03-01), Schurdar
patent: 3907803 (1975-09-01), Ramey et al.
patent: 4038247 (1977-07-01), Muller et al.
patent: 4095028 (1978-06-01), Hall et al.
patent: 4153596 (1979-05-01), Oertel et al.
patent: 4191683 (1980-03-01), Brunetti et al.
patent: 4223147 (1980-09-01), Oertel et al.
patent: 4304714 (1981-12-01), Wheeler et al.
patent: 4309546 (1982-01-01), Karrer
patent: 4336183 (1982-06-01), Nakahara et al.
patent: 4348524 (1982-09-01), Karrer et al.
patent: 4482738 (1984-11-01), Rothgery
patent: 4692486 (1987-09-01), Gugumus
patent: 4730017 (1988-03-01), Avar
patent: 4801749 (1989-01-01), Kazmierczak et al.
patent: 4824884 (1989-04-01), MacLeay et al.
patent: 4993392 (1991-03-01), Cantatore et al.
patent: 5017721 (1991-05-01), Messina et al.
"Anionic Polymerization to Cationic Polymerization," Encyclopedia of Polymer Science and Engineering, vol. 2, pp. 83, 84 (John Wiley & Sons).
Lutz et al., "New Derivatives of 2,2,6,6-Tetramethylpiperidine," pp. 1695-1703 (May, 1962).
Gala et al., "Synthesis and Properties of Some Spin Labeled Long Chain Aliphatic Acids," Can. J. Chem. 60, pp. 710-715 (1982).

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