Process for reducing the discoloration of a plastic molding comp

Details Process for reducing the discoloration of a plastic molding comp Process for reducing the discoloration of a plastic molding comp

1991-11-13

1994-07-19

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524291, 524330, 524340, 524343, 524347, 524377, 524378, 524388, C08K 505, C08K 506, C08K 513

Patent

active

053310349

ABSTRACT:
In plastic molding compositions, in particular those based on olefin polymers, which contain phenolic stabilizers and metal ions as catalyst residues, the discoloration at the processing temperature is reduced if they contain triglycerol or ditrimethylolpropane as catalyst deactivators.

REFERENCES:
patent: 2394306 (1946-02-01), Hentrich et al.
patent: 3622538 (1971-11-01), Green
patent: 4159261 (1979-06-01), Dieckmann
patent: 4374352 (1982-08-01), Wesseler
patent: 4504615 (1985-03-01), Mills
patent: 4675356 (1987-06-01), Miyata
patent: 4963606 (1990-10-01), Scheifstein

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