Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-05-12
1993-11-02
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524379, 524380, C08K 504, C08K 900
Patent
active
052584232
ABSTRACT:
The present invention is directed to methacrylic polymer compositions which may be used to form plastic products which have increased resistance to discoloration by sterilizing radiation, such as gamma or electron beam irradiation. The compositions, free from conventional ultraviolet stabilizers, contain .alpha.-hydroxyacids or esters thereof.
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Crabb Charles C.
Keating Paul J.
Roach Donald E.
Wanat Robert A.
Graham Roger K.
Rohm and Haas Company
Schofer Joseph L.
Smith Jeffrey T.
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