Gradual release structures made from fiber spinning techniques

Details Gradual release structures made from fiber spinning techniques Gradual release structures made from fiber spinning techniques

1992-07-21

1994-11-15

Phelan, D. Gabrielle

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Web, sheet or filament bases; compositions of bandages; or...

424405, 424484, 426548, 71 6413, A61F 1300

Patent

active

053646274

ABSTRACT:
A delivery system and a process for making the system is provided for the gradual release of an active agent. The system comprises an active agent and a wall material. The delivery system is formed by melt spinning a mixture of particles of active agent and wall material into a fiber. The fiber has a longitudinal dimension and a cross sectional dimension, the cross sectional dimension being no greater than about 1 mm. The fiber has an exterior surface. The particles of active agent are dispersed throughout the wall material such that the particles of active agent are gradually released from the fiber when the fiber is contacted with a solvent specific to the active agent.

REFERENCES:
patent: 2224430 (1940-12-01), Garbutt
patent: 3028308 (1962-04-01), Zambito et al.
patent: 3201353 (1965-08-01), Corben
patent: 3329574 (1967-07-01), Barron et al.
patent: 3435110 (1969-03-01), Nichols
patent: 3737521 (1973-06-01), Born
patent: 3795744 (1974-03-01), Ogawa et al.
patent: 3818107 (1974-06-01), Yolles
patent: 3923939 (1975-12-01), Baker et al.
patent: 3928633 (1975-12-01), Shoat et al.
patent: 3951821 (1976-04-01), Davidson
patent: 4122195 (1978-10-01), Bahoshy et al.
patent: 4125519 (1978-11-01), Goodman et al.
patent: 4139639 (1979-12-01), Bahoshy et al.
patent: 4206301 (1980-06-01), Yolles
patent: 4226886 (1980-10-01), Lakes
patent: 4230687 (1980-10-01), Sair et al.
patent: 4374858 (1983-02-01), Glass et al.
patent: 4384004 (1983-05-01), Cea et al.
patent: 4384005 (1983-05-01), McSweeney
patent: 4386106 (1983-05-01), Merritt et al.
patent: 4388328 (1983-06-01), Glass
patent: 4399154 (1983-08-01), Puglia et al.
patent: 4447475 (1984-05-01), Lubbock et al.
patent: 4485118 (1984-11-01), Carroll et al.
patent: 4490395 (1984-12-01), Cherukuri et al.
patent: 4496592 (1985-01-01), Kuwahara et al.
patent: 4515769 (1985-05-01), Merritt et al.
patent: 4556566 (1985-12-01), Bell
patent: 4556567 (1985-12-01), Meyer
patent: 4568560 (1986-02-01), Schobel
patent: 4590075 (1986-05-01), Wei et al.
patent: 4606940 (1986-08-01), Frank et al.
patent: 4643593 (1987-01-01), Stroz et al.
patent: 4673565 (1987-06-01), DiLuccio et al.
patent: 4673577 (1987-06-01), Patel
patent: 4689235 (1987-08-01), Barnes et al.
patent: 4690825 (1987-09-01), Won
patent: 4695463 (1987-09-01), Yang et al.
patent: 4711784 (1987-12-01), Yang
patent: 4720384 (1988-01-01), DiLuccio et al.
patent: 4721620 (1988-01-01), Cherukuri et al.
patent: 4722845 (1988-02-01), Cherukuri et al.
patent: 4726953 (1988-02-01), Carroll et al.
patent: 4740376 (1988-04-01), Yang
patent: 4752485 (1988-06-01), Sharma et al.
patent: 4766036 (1988-08-01), Vaughn et al.
patent: 4771118 (1988-10-01), Takamizawa et al.
patent: 4794003 (1988-12-01), Cherukuri et al.
patent: 4816265 (1989-03-01), Cherukuri et al.
patent: 4824681 (1989-04-01), Schobel et al.
patent: 4828857 (1989-05-01), Sharma et al.
patent: 4841968 (1989-06-01), Dunn et al.
patent: 4870035 (1989-09-01), Takamizawa et al.
patent: 4873085 (1989-10-01), Fuisz
patent: 4885175 (1989-12-01), Zibell
patent: 4892736 (1990-01-01), Goodson
patent: 4911934 (1990-03-01), Yang et al.
patent: 4915958 (1990-04-01), Faust et al.
patent: 4929447 (1990-05-01), Yang
patent: 4931293 (1990-06-01), Cherukuri et al.
patent: 4933190 (1990-06-01), Cherukuri et al.
patent: 4959226 (1990-09-01), Chapdelaine et al.
patent: 4978537 (1990-12-01), Song
patent: 4992280 (1991-02-01), Chu et al.
patent: 4997856 (1991-03-01), Fuisz
patent: 5000965 (1991-03-01), Killeen et al.
patent: 5108762 (1992-04-01), Broderick et al.
F. Billmeyer, Jr., Textbook of Polymer Science, 518-22 (Wiley International Edition, 2nd).
R. Dunn, D. Lewis, L. Beck, Fibrous Polymers for the Delivery of Contraceptive Steroids to the Female Reproductive Tract, Controlled Release of Pesticides and Pharmaceuticals, 125-46 (D. Lewis Ed. 1981).

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