Method and composition for preventing or suppressing discolorati

Details Method and composition for preventing or suppressing discolorati Method and composition for preventing or suppressing discolorati

1982-03-31

1984-06-12

Kight, III, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524101, 524249, 524342, 524406, 524413, C08K 534, C08K 513, C08K 510

Patent

active

044542704

ABSTRACT:
Various antioxidant-protected polyolefins are protected against initial discoloration from processing, subsequent discoloration, loss of whiteness, and yellowing with time and upon exposure to elevated temperature by addition of various compounds such as triisopropanolamine, bipyridines, and N,N-bis-(2-hydroxymethyl)soyaamine.

REFERENCES:
patent: 2287188 (1942-06-01), Matheson et al.
patent: 3349059 (1967-10-01), Lappin
patent: 3389119 (1968-06-01), Sherrill
patent: 3531483 (1970-09-01), Gilles
patent: 3773743 (1973-11-01), Ainsworth et al.
patent: 3803065 (1974-04-01), Arai et al.
patent: 3922249 (1975-11-01), Mills

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