Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2003-05-23
2008-12-30
Mulcahy, Peter D. (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C427S340000, C427S344000, C556S485000
Reexamination Certificate
active
07470741
ABSTRACT:
The present invention provides a fluorochemical composition comprising: (a) one or more fluorochemical oligomers derivable from a free radical polymerization of one or more fluorinated monomers and optionally one or more non-fluorinated monomers in the presence of a chain transfer agent, said fluorochemical oligomer being free of acid groups and comprising one or more groups of the formula:in-line-formulae description="In-line Formulae" end="lead"?-M1(R)q(Y)p−q−1 (I)in-line-formulae description="In-line Formulae" end="tail"?wherein M1is selected from the group consisting of Si, Ti, Zr, B, Al, Ge, V, Pb, Sn and Zn, R represents a non-hydrolysable group, Y represents a hydrolysable group, q is 0, 1 or 2, p equals the valence of M1and is 3 or 4 and p−q−1 is at least 1;(b) one or more non-fluorinated compounds of an element M2selected from the group consisting of Si, Ti, Zr, B, Al, Ge, V, Pb, Sn and Zn and having at least two hydrolysable groups per molecule in an amount sufficient to form a polycondensation product upon reaction with said fluorochemical oligomer (a);(c) water; and(d) an organic solvent in an amount sufficient to dissolve and/or disperse components (a), (b) and (c).The invention also provides compositions comprising condensates of components (a) and (b) of the above composition and a method of treatment of substrates therewith.
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3M Innovative Properties Company
Gross Kathleen B.
Hu Henry
Jordan Robert H.
Mulcahy Peter D.
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