Phosphorous-containing, organic polymerisable silanes and...

Details Phosphorous-containing, organic polymerisable silanes and... Phosphorous-containing, organic polymerisable silanes and...

2002-03-12

2008-10-07

Barts, Samuel A (Department: 1621)

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

Organic compounds

Silicon containing

Reexamination Certificate

active

07432385

ABSTRACT:
The invention relates to compounds of formula (I) (XaRbSi)m[(B) ([O]oP[O]pR′cYd)n]4-a-b (I), where the groups, residues and indices have the following meanings: B=an at least doubly-valent straight chained or branched group with at least one organic polymerizable group and at least three carbon atoms, X=a group which may be cleaved from the silicon atom by hydrolysis, R=optionally substituted alkyl, alkanyl, aryl, alkylaryl or arylalkyl, R′═R, Y═Cl, OH or OR′, R″═H, alkyl or aryl, a=0, 1, 2 or 3, b=0, 1 or 2, a+b together=1, 2 or 3, c=0, 1 or 2, d=0, 1 or 2, c+d together=2, m=at least 1, with the proviso that m is not greater than 1 when a+b=1 or 2, n=at least 1, o=0 or 1 and p=0 or 1. The invention further relates to a series of methods by which the above compounds may be produced.

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Moszner, N., et al., “Synthesis and radical polymerization of hydrolytically stable acrylic phosphonic acids”, Macromol. Chem. Phys. 200, pp. 1062-1067 (1999).
Patent Abstracts of Japan, No. 11246572 A, (Ivoclar, AG), Sep. 14, 1999.

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