Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Reexamination Certificate
2006-04-11
2006-04-11
Buttner, David J. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
C528S025000, C528S029000, C525S464000, C525S467000, C525S474000
Reexamination Certificate
active
07026423
ABSTRACT:
A silicon-based polycarbonate of formula (I):wherein R1, R2, R3, R4, R5, R6, R8and R9are the same or different and selected from hydrogen or an optionally substituted straight chain, branched or cyclic, saturated or unsaturated hydrocarbon radical; R7is a divalent linking group or an optionally substituted straight chain, branched or cyclic, saturated or unsaturated by hydrocarbon radical; A is an endcapping group; n, y and z are integers of 0 or more; and x is an integer of 0 or more.
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Gunatillake Pathiraja A.
Meijs Gordon Francis
Aortech Biomaterials Pty Ltd.
Buttner David J.
Schwegman Lundberg Woessner & Kluth P.A.
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