Acryloxypropyl- or methacryloxypropyl-functional siloxane oligom

Details Acryloxypropyl- or methacryloxypropyl-functional siloxane oligom Acryloxypropyl- or methacryloxypropyl-functional siloxane oligom

1999-08-02

2000-10-17

Shaver, Paul F.

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

Organic compounds

Silicon containing

106436, 106445, 106446, 106469, 106481, 427387, 4274071, 4274072, 523212, C07F 708, C07F 718

Patent

active

061334669

ABSTRACT:
Mixtures of catenate and cyclic siloxane oligomers of formula I and II ##STR1## wherein the substituents R consist of 3-methacryloxypropyl or 3-acryloxypropyl groups and methoxy, ethoxy and/or propoxy groups alone or together with C.sub.1 -C.sub.18 alkyl, fluoroalkyl, isoalkyl or cycloalkyl groups and/or C.sub.6 -C.sub.12 aryl groups and where not more than one 3-methacryloxypropyl or 3-acryloxypropyl group is attached to one silicon atom and the degree of oligomerization of compounds of the formula I is within the range 2<m<25 and of compounds of the formula II is within the range 2<n<8 and the quotient of the molar proportion of Si/alkoxy groups is .gtoreq.0.5.

REFERENCES:
patent: 5153332 (1992-10-01), Enami et al.
patent: 5256754 (1993-10-01), Takarada et al.
patent: 5369206 (1994-11-01), Kamei et al.
patent: 5593787 (1997-01-01), Dauth et al.

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