Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2007-06-26
2007-06-26
Wang, Shengjun (Department: 1617)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S490000, C424S494000, C424S495000, C424S496000, C424S497000, C424S065000
Reexamination Certificate
active
10184285
ABSTRACT:
This invention relates to a controlled release encapsulated dry powder that is formed by an emulsion comprising: A) a fully hydrolyzed polymer, B) a hydrophobic silica, C) a modified corn starch, and D) at least one fragrance oil, which is emulsified in water and spray dried to evaporate the water obtaining the encapsulated dry powder. This invention also relates to a process for the preparation of a controlled release encapsulated dry powder that is formed by an emulsion, which is spray dried. The controlled release encapsulated dry powder is used in deodorant and antiperspirant applications.
REFERENCES:
patent: 3397065 (1968-08-01), Cunningham et al.
patent: 3920849 (1975-11-01), Marmo et al.
patent: 4428869 (1984-01-01), Munteanu et al.
patent: 4446032 (1984-05-01), Munteanu et al.
patent: 4755397 (1988-07-01), Eden et al.
patent: 5176903 (1993-01-01), Goldberg et al.
patent: 5876755 (1999-03-01), Perring et al.
patent: 6063365 (2000-05-01), Shefer et al.
CRC Critical Review Journal in Food Technology, Jul. 1971, pp. 245-265, Leslie L. Balassa and Gene O. Fanger, “Microencapsulation in the Food Industry”.
Soap and Chemical Specialties, Dec. 1966, pp. 67 and 155, Paul J. Barreto, “Perfumes For Specialties”.
Batelle Technical Review, vol. 16, No. 2, (month unavailable) 1967, pp. 2-8, James E. Flinn and Herman Nack, “Advances in Microencapsulation Techniques”.
Soap and San Chem, Jan. 1985, pp. 135, 136,137, 139, 141 and 145, Robert T. Maleeny, “Spray Dried Perfumes”.
Food Flavoring, Avi Pub. Co. (month unavailable) 1960, Merory, “Spray Dried Flavors”, pp. 274-277.
McDermott Keith J.
Mushock Steven G.
Smith Leslie C.
Akerman & Senterfitt
Haarmann & Reimer Corporation
Pendorf Stephan A.
Wang Shengjun
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