Stabilizers for polymers and polymers stabilized thereby

Details Stabilizers for polymers and polymers stabilized thereby Stabilizers for polymers and polymers stabilized thereby

1980-01-30

1982-03-02

Kight, III, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

546190, C08K 534

Patent

active

043177670

ABSTRACT:
New N-alkyl-piperidine derivatives of hydroxy-benzyl-malonic acid are disclosed. These new compounds are useful for stabilizing thermoplastic polymers, in partcular polyole fins, against sunlight, heat and oxidation.
A process for producing the new compounds is also disclosed, as well as the use thereof as stabilizers of polymers and polymeric compositions.

REFERENCES:
patent: 3543306 (1970-11-01), Biland
patent: 3940363 (1976-02-01), Murayama et al.
patent: 3975357 (1976-08-01), Murayama et al.
patent: 4148784 (1979-04-01), Malherbe et al.
patent: 4197236 (1980-04-01), Rosenberger et al.

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