CA2025764A1 - Gradual release structures made from fiber spinning techniques - Google Patents

Gradual release structures made from fiber spinning techniques

Info

Publication number
CA2025764A1
CA2025764A1 CA2025764A CA2025764A CA2025764A1 CA 2025764 A1 CA2025764 A1 CA 2025764A1 CA 2025764 A CA2025764 A CA 2025764A CA 2025764 A CA2025764 A CA 2025764A CA 2025764 A1 CA2025764 A1 CA 2025764A1
Authority
CA
Canada
Prior art keywords
active agent
fiber
gradual release
fiber spinning
structures made
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2025764A
Other languages
French (fr)
Other versions
CA2025764C (en
Inventor
Joo Hae Song
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WM Wrigley Jr Co
Original Assignee
WM Wrigley Jr Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WM Wrigley Jr Co filed Critical WM Wrigley Jr Co
Publication of CA2025764A1 publication Critical patent/CA2025764A1/en
Application granted granted Critical
Publication of CA2025764C publication Critical patent/CA2025764C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G4/00—Chewing gum
    • A23G4/06—Chewing gum characterised by the composition containing organic or inorganic compounds
    • A23G4/064—Chewing gum characterised by the composition containing organic or inorganic compounds containing inorganic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G4/00—Chewing gum
    • A23G4/18—Chewing gum characterised by shape, structure or physical form, e.g. aerated products
    • A23G4/20—Composite products, e.g. centre-filled, multi-layer, laminated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug

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 longi-tudinal 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.
CA002025764A 1989-10-10 1990-09-19 Gradual release structures made from fiber spinning techniques Expired - Fee Related CA2025764C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41866289A 1989-10-10 1989-10-10
US07/418,662 1989-10-10

Publications (2)

Publication Number Publication Date
CA2025764A1 true CA2025764A1 (en) 1991-04-11
CA2025764C CA2025764C (en) 1996-09-03

Family

ID=23659051

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002025764A Expired - Fee Related CA2025764C (en) 1989-10-10 1990-09-19 Gradual release structures made from fiber spinning techniques

Country Status (13)

Country Link
US (1) US5364627A (en)
EP (1) EP0422820B1 (en)
JP (1) JPH03206110A (en)
CN (1) CN1054368A (en)
AT (1) ATE123650T1 (en)
AU (1) AU639645B2 (en)
CA (1) CA2025764C (en)
DE (2) DE422820T1 (en)
DK (1) DK0422820T3 (en)
ES (1) ES2073538T3 (en)
FI (1) FI904598A0 (en)
NO (1) NO904370L (en)
NZ (1) NZ235372A (en)

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US4992280A (en) * 1989-12-18 1991-02-12 Columbia Laboratories, Inc. Sustained flavorant release composition, method for making same and chewable structure incorporating same
US5000965A (en) * 1990-02-21 1991-03-19 Warner-Lambert Company Method for the preparation of sweetening agent delivery systems containing polyvinyl acetate
WO1990007864A2 (en) * 1990-04-25 1990-07-26 Wm. Wrigley Jr. Company Method of controlling release of clycyrrhizin in chewing gum and gum produced thereby
US5128155A (en) * 1990-12-20 1992-07-07 Wm. Wrigley Jr. Company Flavor releasing structures for chewing gum

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CA2025764C (en) 1996-09-03
US5364627A (en) 1994-11-15
ATE123650T1 (en) 1995-06-15
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DE422820T1 (en) 1991-11-28
EP0422820A2 (en) 1991-04-17
NZ235372A (en) 1992-05-26
EP0422820A3 (en) 1991-09-11
ES2073538T3 (en) 1995-08-16
FI904598A0 (en) 1990-09-18
NO904370L (en) 1991-04-11
JPH03206110A (en) 1991-09-09
EP0422820B1 (en) 1995-06-14
DE69020088T2 (en) 1996-02-01
CN1054368A (en) 1991-09-11
AU639645B2 (en) 1993-07-29
AU6263990A (en) 1991-04-26
NO904370D0 (en) 1990-10-09

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