Polyolefin stabilizers

Details Polyolefin stabilizers Polyolefin stabilizers

1982-09-22

1984-04-17

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

252407, 524304, 524349, 524350, 524433, C08K 536

Patent

active

044435720

ABSTRACT:
A stabilizer system for C.sub.2 to C.sub.8 olefin polymers is provided which comprises at least one pentaerythritol phosphite compound and at least one alkaline earth metal oxide. In addition, stabilized polyolefins are disclosed which contain the above-described stabilizing system.

REFERENCES:
patent: 3039993 (1962-06-01), Friedman
patent: 3188298 (1965-06-01), Williamson et al.
patent: 3244650 (1966-04-01), Hecker
patent: 3356617 (1967-12-01), Juredine
patent: 3386948 (1968-06-01), Needham et al.
patent: 3409587 (1968-11-01), Mills
patent: 3553298 (1971-01-01), Hodan
patent: 3639518 (1972-02-01), Davies et al.
patent: 3856726 (1974-12-01), Menzel et al.
patent: 3922249 (1975-11-01), Mills
patent: 3988298 (1976-10-01), Mills
F. Mitterhofer; "Processing Stability of Polyolefins", Polymer Engineering & Science, Mid-Jul., 1980, vol. 20, No. 10, pp. 692-695.

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