Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-04-08
2009-12-15
Wu, David (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C424S070100, C424S070110, C424S070160, C424S078020, C424S078030, C526S318000
Reexamination Certificate
active
07632905
ABSTRACT:
The present invention relates to a linear ethylenic block copolymer comprising in each block at least one ionic hydrophilic unit, which may be different from one block to another, the said ionic hydrophilic unit being present in each block in a proportion of from 2% to 100% by weight relative to the weight of the said block.The invention also relates to a cosmetic or pharmaceutical composition comprising such a copolymer, and also to a cosmetic process for making up or caring for keratin materials using the said composition.
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Boupat Nicolas Passade
Guerret Olivier
Hernandez Franck
Mougin Nathalie
Schultze Xavier
Bernshteyn Michael M
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
L'Oreal S.A.
Wu David
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