Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2007-09-11
2007-09-11
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S286000, C526S319000, C528S070000, C524S544000, C560S167000
Reexamination Certificate
active
11275114
ABSTRACT:
A fluorochemical compound comprises the reaction product of:(a) the reaction product of:(i) at least one fluorochemical alcohol represented by the formula:in-line-formulae description="In-line Formulae" end="lead"?CnF2n+1—X—OHin-line-formulae description="In-line Formulae" end="tail"?wherein:n=1 to 6,R=hydrogen or an alkyl group of 1 to 4 carbon atoms,m=2 to 8,Rf=CnF2n+1,y=0 to 6,q=1 to 8; and(ii) at least one unbranched symmetric diisocyanate, and(b) at least one co-reactant comprising two or more functional groups that are capable of reacting with an isocyanate group.
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Clark John C.
Jariwala Chetan P.
Klun Thomas P.
Kumar Ramesh C.
Moore George G. I.
3M Innovative Properties Company
Bernshteyn M.
Fulton Lisa P.
Wu David W.
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