Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1992-05-19
1994-01-18
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 94, 524110, 524261, 524288, 524307, 524308, 524316, 524317, 524368, 524378, 524466, 524467, 525462, 525464, C08K 502, C08K 509, C08K 510, C08K 515
Patent
active
052800504
ABSTRACT:
A thermoplastic polycarbonate molding composition which is rendered resistant to deterioration induced by exposure to gamma radiation is disclosed. The composition is imparted an improved degree of color stability upon the incorporation of a minor amount of a poly(alkylene oxide) oligomer and a halogenated aromatic acid derivative therewith. In addition, the composition is characterized by its low initial color and the small change in its yellowness index after a waiting period of several weeks.
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patent: 5187211 (1993-02-01), Lundy et al.
Kirshnan Sivaram
Powell Douglas G.
Gil Joseph C.
Michl Paul R.
Miles Inc.
Yoon Tae H.
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