Title: Halogen-containing resin compositions stabilized by methionine diketopiperazine

Abstract: A stabilized halogen-containing resin composition which comprises (A) a halogen-containing resin, (B) at least one of methionine derivatives selected from the group consisting of compounds having the following structural formula (I) to (III) ##STR1## and (C) at least one of stabilizers selected from the group consisting of alkaline earth metal, zinc and organo tin compounds.

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Inventors: Kitamura, Nobuyoshi (Sagamihara, JP)
Ito, Nobuo (Ooisomachi, JP)
Takeuchi, Koji (Yokohama, JP)

Application Number: 06/464698
Filing Date: 1983-02-07
Publication_date: 1983-12-27
Assignee: AJINOMOTO KK (JP)

Primary Class(es): 524/100 524/106
Other Classes: C08K5/098; C08K5/372; C08K5/378; C08K5/00; C08K5/37
US Patent Ref:

3939175	February, 1976	Schmidt et al.	524/100	Hydroxyphenylated hydantoins
4117029	September, 1978	Kitano	524/106	Halogen-containing resin composition containing organic substance as stabilizer

Other Refs: JP43-9049JP49-16108JP49-16109JP51-39988

April, 1968
April, 1974
April, 1974
October, 1976

Other References: J. Reid Shelton, "Stabilization Fundamentals in Thermal Autoxidation of Polymers," Stabilization and Degradation of Polymers, Allara and Hawkins, (1978), pp. 215-225.

Primary Examiner: Hoke, Veronica P.
Assistant Examiner:
Attorney: Oblon, Fisher, Spivak, McClelland & Maier

Parent Case Data:

This is a continuation, of application Ser. No. 348,274, filed Feb. 12, 1982,