Thiophosphine compounds

Details Thiophosphine compounds Thiophosphine compounds

2006-10-20

2008-11-04

Eyler, Yvonne (Department: 1621)

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

Organic compounds

Phosphorus containing

C568S015000

Reexamination Certificate

active

07446228

ABSTRACT:
Disclosed is a thiosphosphine compound of formula:wherein X representswith R1being H or —CH3, R and R′ represent, independently from each other, an alkyl radical, an alkoxy radical, an aryl radical or a phenyl radical which may be substituted with one or more alkyl and/or alkoxy groups, n is an integer from 0 to 4, n′ is an integer from 0 to 5, x is an integer from 0 to 2, y is an integer from 1 to 5 with the proviso that y+n is an integer from 1 to 5. The compounds can be used to make optically transparent articles such as ophthalmic lenses.

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