Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Polymer containing
Reexamination Certificate
2009-03-06
2011-11-15
Yu, Gina C (Department: 1617)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Polymer containing
C424S070110, C424S070280, C514S718000, C514S777000
Reexamination Certificate
active
08057786
ABSTRACT:
The present invention relates to cosmetic and/or dermatological compositions for the treatment of keratin containing substrates, comprising synergistic mixtures of modified starch polymers with defined molecular weights and cationic charges in a cosmetically acceptable medium. The synergistic mixtures of modified starches employed to manufacture compositions according to the present invention exhibit significant benefits over the existing modified starches employed according to the state-of-the-art in the treatment of keratin-containing substrates like human or animal hair, skin and nails. Another aspect of the present invention is the stabilization of the modified starch solutions used to manufacture the cosmetic and/or dermatological compositions according to the present invention against the growth of micro-organisms without traditional preservatives.
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Dieker Kurt
Jänichen Jan
Kinder Michael
Petersen Wilfried
Salmina-Petersen Manuela
Dr. Straetmans Chemische Produkte GmbH
Roberts & Roberts, LLP
Yu Gina C
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