Photochromic spirooxazine monomers and polysiloxanes
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United States of America Patent
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Dec 5, 1995
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app pub date -
Feb 17, 1994
filing date -
Feb 19, 1993
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Abstract
A method of making a photochromic polysiloxane includes the steps of forming a photochromic spironaphthooxazine monomer including an alkene terminated side and, by addition reaction, covalently bonding the alkene carbon to [SiH] moieties of a siloxane polymer. Novel spironaphthooxazine monomers and photochromic polysiloxanes are disclosed.
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