Novel vinyl carbonate and vinyl carbamate contact lens material

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

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556420, 556429, 556437, 556440, 544229, C07F 708, C07F 710

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050702157

ABSTRACT:
Novel monomers of the general formula ##STR1## where b is 0 or 1, a is 1, 2, 3 or 4, R.sup.2 is a monovalent alkyl radical and R is an organic radical. The novel monomers may be employed to produce novel copolymers useful as hydrogel, soft non-hydrogel and/or rigid gas permeable contact lens materials.

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patent: 4861908 (1989-08-01), Satoh et al.
Vol. 24, Journal of Polymer Science, Part C, pp. 75-88 (1968) "Poly(vinyl Chloroformate) & Derivatives: Preparation & Properties", J. R. Schaefgen.
Vol. 4, Polymer Bulletin 4, pp. 705-710 (1981), Gilles Meunier et al., "Polymerization & Copolymerization of Vinyl Carbamates & Vinyl Carbonates".
Vol. 16, Polymer Bulletin 16, pp. 391-394 (1986), Bernard Boutevin et al., "Polymerization--Synthesis & Polymerization of Fluorinated, Chlorinated & Deuterated Vinyl Carbonates".

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