Photochromic spirooxazine monomers and polysiloxanes

Details Photochromic spirooxazine monomers and polysiloxanes Photochromic spirooxazine monomers and polysiloxanes

1994-02-17

1995-12-05

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

544 69, C07D49820

Patent

active

054730686

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.

REFERENCES:
patent: 4792224 (1988-12-01), Kwiatkowski et al.
patent: 4851530 (1989-07-01), Rickwood
patent: 4913544 (1990-04-01), Rickwood et al.
patent: 4936995 (1990-06-01), Kwiatkowski
patent: 5017698 (1991-05-01), Machida et al.
patent: 5186867 (1993-02-01), Castaldi et al.

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