Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1994-05-20
1996-01-02
Morgan, Kriellion S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524417, 523106, 8507, 8549, C08K 53412, D06P 500
Patent
active
054809274
ABSTRACT:
A method and composition useful in fabricating radiation-absorbing contact lenses, especially ultraviolet (UV) and visible (tint) light-absorbing lenses. The radiation-absorber is incorporated into a contact lens in the presence of a buffer which maintains the pH near neutral. Subsequently, the radiation-absorber is chemically affixed to the lens by raising the pH to a highly basic level.
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Cooper Charlotte L.
Janssen Robert A.
Mulcahy Deborah J.
Peeples Judy L.
Stebbins Leslie F.
Ciba Geigy Corporation
McC. Roberts Edward
Meece R. Scott
Morgan Kriellion S.
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