Microcapsules IV

Details Microcapsules IV Microcapsules IV

2005-12-27

2005-12-27

Page, Thurman K. (Department: 1615)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

C424S450000, C424S489000, C424S490000, C264S004100, C264S004330, C264S004600

Reexamination Certificate

active

06979467

ABSTRACT:
A microcapsule having a mean diameter of from about 0.1 to about 5 mm, a membrane and a matrix containing at least one active principle wherein the microcapsule is the product of the process comprising the steps of (a) forming an aqueous matrix by heating an aqueous solution comprised of a gel former, an anionic polymer selected from the group consisting of a salt of alginic acid and an anionic chitosan derivative and active principle; (b) forming a dispersed matrix by adding the aqueous matrix in an oil phase; (c) contacting the dispersed matrix with an aqueous solution of chitosan.

REFERENCES:
patent: 4172887 (1979-10-01), Vanlerberghe et al.
patent: 4765976 (1988-08-01), Grollier et al.
patent: 5008032 (1991-04-01), Diessel et al.
patent: 5089272 (1992-02-01), Shioya et al.
patent: 5705169 (1998-01-01), Stein et al.
patent: 5730960 (1998-03-01), Stein et al.
patent: 5753264 (1998-05-01), Magdassi et al.
patent: 5827531 (1998-10-01), Morrison et al.
patent: 5855904 (1999-01-01), Chung et al.
patent: 5962663 (1999-10-01), Wachter et al.
patent: 6037487 (2000-03-01), Habeck et al.
patent: 6193960 (2001-02-01), Metzger et al.
patent: 6733790 (2004-05-01), Garces Garces
patent: 6818296 (2004-11-01), Garces Garces et al.
patent: 2003/0147963 (2003-08-01), De Moragas et al.
patent: 2004/0213997 (2004-10-01), Bonastre Gilabert et al.
patent: 2101079 (1949-08-01), None
patent: 1 165 574 (1964-03-01), None
patent: 20 24 051 (1971-12-01), None
patent: 0 367 049 (1994-02-01), None
patent: 37 13 099 (1996-02-01), None
patent: 44 42 987 (1996-06-01), None
patent: 195 37 001 (1997-03-01), None
patent: 196 04 180 (1997-08-01), None
patent: 197 12 033 (1998-09-01), None
patent: 197 12 978 (1998-10-01), None
patent: 198 45 246 (1999-06-01), None
patent: 0 152 898 (1985-08-01), None
patent: 0 237 542 (1987-09-01), None
patent: 0 237 542 (1991-01-01), None
patent: 0 622 451 (1994-11-01), None
patent: 0 152 898 (1995-08-01), None
patent: 0 693 471 (1996-01-01), None
patent: 0 694 521 (1996-01-01), None
patent: 0 818 450 (1998-01-01), None
patent: 2 252 840 (1975-08-01), None
patent: 2 699 545 (1994-06-01), None
patent: 2 701 266 (1994-08-01), None
patent: 962919 (1964-07-01), None
patent: 1 333 475 (1973-10-01), None
patent: 01018440 (1989-01-01), None
patent: 07258087 (1995-10-01), None
patent: 98/43609 (1998-10-01), None
Falbe, “Surfactant in Consumer Products”, Springer Verlag, Berlin, (1987), pp. 54-124.
Falbe, “Katalysatoren, Tenside und Mineralöladditive” (Catalysts, Surfactants and Mineral Oil Additives), Thieme Verlag, Stuttgart, (1978), pp. 123-217.
Finkel, “Formulierung kosmetischer Sonnenschutzmittel”, SÖFW-Journal, vol. 122, (1996), pp. 543-546 & 548.
“Kosmetische Färbemittel”, Farbstoffkommission der Deutschen Forschungsgemeinschaft, Verlag Chemie, Weinheim, (1984). pp. 81-106.
“Ullmann's Encyclopedia of Industrial Chemistry”, 5thEd., vol. A6, Weinheim, Verlag Chemie, (1986), pp. 231-232.
Gesslein, et al., “Chitosan, a gift from the sea”, HAPPI, vol. 27 (Oct., 1990), pp. 57 & 59.
Skaugrud, “Chitosan—New Biopolymer For Cosmetics & Drugs”, Drug Cosm. Ind., vol. 148, (May, 1991), pp. 24, 26 & 30.
Onsoyen, et al., “Adding Benefits to Cosmetic Formulations by Tailormade Chitosans”, Seifen-Öle-Fette-Wachse, vol. 117, (1991) , pp. 633-637.
Sannan, et al., “Studies on Chitin, 2”, Makromol. Chem., vol. 177, (1976), pp. 3589-3600.
Todd, et al., “Volatile silicone fluids for cosmetic formulations”, Cosmetics & Toiletries, vol. 91, (Jan., 1976), pp. 29-32.

Affiliated with

Also associated with

Rating

Microcapsules IV does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microcapsules IV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microcapsules IV will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3523126