Stabilized compositions based on alpha-olefin polymers

Details Stabilized compositions based on alpha-olefin polymers Stabilized compositions based on alpha-olefin polymers

1986-11-18

1989-05-09

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524102, 524120, 524126, 524291, 524302, 524394, 524400, 524420, 524513, C08K 534, C08K 549, C08K 553, C08K 539

Patent

active

048291102

ABSTRACT:
Stabilized compositions based on alpha-olefin polymers stabilized against degradation by oxidizing liquids, based on polymers of alpha-olefins such as propylene, containing a phenolic antioxidant, a phosphonite and a sulphur-containing stabilizer chosen from the esters derived from aliphatic polyols and alkylthiodipropionic acids and from combinations of a metal sulfide with one of these esters or with an organic polysulfide and optionally also containing an organic phosphite and an anti-acid agent. These compositions exhibit outstanding resistance to the phenomenon of oxidative degradation produced particularly by the contact with hot washing products of all kinds.

REFERENCES:
patent: 3029224 (1962-04-01), Fischer et al.
patent: 3462389 (1969-08-01), Schulde et al.
patent: 3577384 (1971-05-01), Mauz et al.
patent: 4075163 (1973-02-01), Hofer et al.
patent: 4180498 (1979-12-01), Spivack
patent: 4206111 (1980-06-01), Valdiserri et al.
patent: 4349468 (1982-09-01), Nakahara et al.
patent: 4670493 (1987-06-01), Van Asbroeck et al.
F. Mitler-Hofer, "Verarbeitungs-Stabilisatoren Furr Polyproylen", vol. 67, 1977, No. 3, pp. 151-153.

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