Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Matrices
Reexamination Certificate
2002-06-25
2008-08-26
Woodward, MP (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Matrices
Reexamination Certificate
active
07416739
ABSTRACT:
A composition for retaining active ingredients in personal care compositions is described based on one or more polymers having a network structure in an oil phase in amounts from 0.01 to 10% by weight based on the total weight of the composition in the oil phase, the polymers including at least one associative agent, the composition further including at least one active component. The oil phase viscosity of each composition is at least 10 poise under a shear stress up to 1000 dynes/cm2.
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Noveon: “Pemulen TR-1 and TR-2 emulsifiers; Waterproof Sunscreen Emulsions Prepared With Pemulen Polymers” Polymers for Personal Care—Noveon, ′Online! Mar. 1995, XP002263121.
Baxter Steven M.
Lau Willie
Markovic Berislav
Rerek Mark E.
Schwartz Curtis
Barham Bethany
Rohm and Haas Company
Woodward MP
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