Polyolefin compositions stabilized against degradation using hyd

Details Polyolefin compositions stabilized against degradation using hyd Polyolefin compositions stabilized against degradation using hyd

1986-02-03

1987-05-26

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 99, 524100, 524101, 524102, 524103, C08K 534

Patent

active

046687211

ABSTRACT:
N,N-Dibenzylhydroxylamine and other selected hydroxylamine derivatives are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine light stabilizers, the ultraviolet light absorbers, the organic phosphorus compounds, the alkaline metal salts of fatty acids and the thiosynergists, against degradation upon high temperature extrusion, exposure to the combustion products of natural gas, gamma irradiation or upon storage for extended periods.

REFERENCES:
patent: 3640928 (1972-02-01), Murayama et al.
patent: 3644278 (1972-02-01), Klemchuk
patent: 3936456 (1976-02-01), Ramey et al.
patent: 3941744 (1976-03-01), Murayama et al.
patent: 4055536 (1977-10-01), Soma et al.
patent: 4064102 (1977-12-01), Hillard et al.
patent: 4104248 (1978-08-01), Cantatore
patent: 4108829 (1978-08-01), Cassandrini et al.
patent: 4239891 (1980-12-01), Wiezer et al.
patent: 4292240 (1981-09-01), Lai et al.
patent: 4396735 (1983-08-01), Minagawa et al.
D. M. Wiles, "Kinnetics of UV Stabilization in Polymers"--presented Jun. 22-27, 1980 at N.Y. State University at New Paltz, N.Y.

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