Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1989-09-05
1991-04-09
Hoke, Veronica P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524109, 524110, 524263, 524359, 524367, 524369, 524384, C08K 515, C08K 506
Patent
active
050065726
ABSTRACT:
The invention relates to thermoplastic molding compositions comprising a polycarbonate resin which is rendered resistant to gamma radiation induced yellowing. It was surprisingly found that the incorporation in the resin of an effective amount of benzylic alcohol or its derivatized versions renders the composition resistant to yellowing. The composition of the invention is suitable for the preparation of molded articles having improved resistance to yellowing and to the formation of haze induced upon exposure to gamma radiation.
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Krishnan Sivaram
Lundy Charles E.
White Roger J.
Gil Joseph C.
Hoke Veronica P.
Mobay Corporation
Preis Aron
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