AU548792B2 - Hydrophilic polymer for controlled release of active material - Google Patents

Hydrophilic polymer for controlled release of active material

Info

Publication number
AU548792B2
AU548792B2 AU85361/82A AU8536182A AU548792B2 AU 548792 B2 AU548792 B2 AU 548792B2 AU 85361/82 A AU85361/82 A AU 85361/82A AU 8536182 A AU8536182 A AU 8536182A AU 548792 B2 AU548792 B2 AU 548792B2
Authority
AU
Australia
Prior art keywords
controlled release
active material
release
hydrophilic polymer
hydrophilic polymers
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.)
Expired
Application number
AU85361/82A
Other versions
AU8536182A (en
Inventor
Helmut Augart
Adolf Knecht
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.)
Goedecke GmbH
Original Assignee
Goedecke GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6135462&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU548792(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Goedecke GmbH filed Critical Goedecke GmbH
Publication of AU8536182A publication Critical patent/AU8536182A/en
Application granted granted Critical
Publication of AU548792B2 publication Critical patent/AU548792B2/en
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
    • A01N25/10—Macromolecular compounds
    • 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
    • C05G3/44—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility for affecting solubility

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical & Material Sciences (AREA)
  • Zoology (AREA)
  • Epidemiology (AREA)
  • Plant Pathology (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Environmental Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Agronomy & Crop Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Materials For Medical Uses (AREA)
  • Lock And Its Accessories (AREA)
  • Slot Machines And Peripheral Devices (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

1. Process for the time controlled release of active substances from sustained-release active substance preparations, in particular drug preparations, by addition of hydrophilic polymers characterized in that the release rate which is rising as a result of increasing viscosity steps of the hydrophilic polymers added is empirically determined and the desired release characteristic is adjusted using the values determined.
AU85361/82A 1981-06-26 1982-06-25 Hydrophilic polymer for controlled release of active material Expired AU548792B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813125178 DE3125178A1 (en) 1981-06-26 1981-06-26 METHOD FOR THE TIMED CONTROL OF THE RELEASE OF ACTIVE SUBSTANCES FROM ACTIVE SUBSTANCE PREPARATIONS, IN PARTICULAR DRUG PREPARATIONS
DE31251781 1981-06-26

Publications (2)

Publication Number Publication Date
AU8536182A AU8536182A (en) 1983-01-06
AU548792B2 true AU548792B2 (en) 1986-01-02

Family

ID=6135462

Family Applications (1)

Application Number Title Priority Date Filing Date
AU85361/82A Expired AU548792B2 (en) 1981-06-26 1982-06-25 Hydrophilic polymer for controlled release of active material

Country Status (13)

Country Link
EP (1) EP0068446B2 (en)
JP (1) JPS5843927A (en)
AT (1) ATE16979T1 (en)
AU (1) AU548792B2 (en)
CA (1) CA1208556A (en)
DE (2) DE3125178A1 (en)
DK (1) DK173480B1 (en)
ES (1) ES513422A0 (en)
FI (1) FI78391C (en)
HU (1) HU189148B (en)
IE (1) IE53104B1 (en)
SU (1) SU1375114A3 (en)
ZA (1) ZA824496B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8403360D0 (en) * 1984-02-08 1984-03-14 Erba Farmitalia Pharmaceutical compositions
GB8403361D0 (en) * 1984-02-08 1984-03-14 Erba Farmitalia Pharmaceutical composition
US4608248A (en) * 1985-11-08 1986-08-26 Warner-Lambert Company Process for time-controlled release of active ingredients
DE3737741A1 (en) * 1987-11-06 1989-05-18 Goedecke Ag ORAL MEDICAL FORM FOR THE ONLY DAILY TREATMENT OF HYPERTENSION WITH DILTIAZEMHYDROCHLORIDE
FR2630913A1 (en) * 1988-05-09 1989-11-10 Delalande Sa DILTIAZEM WATER SOLUBLE SALT (S) COMPRESSES WITH PROGRAMMED RELEASE AND METHOD OF MANUFACTURING THE SAME
ES2036123B1 (en) * 1990-12-03 1994-01-16 Neila Nieto Jorge Juan MANUFACTURING PROCESS OF SOLID INORGANIC FERTILIZERS CONDITIONED WITH WATER RETAINING POLYMERS.
ES2042418B1 (en) * 1992-05-18 1994-07-01 Tecno Holding S A METHOD FOR THE EXTERNAL TREATMENT OF VEGETABLE CROPS.
US6440457B1 (en) 1993-05-27 2002-08-27 Alza Corporation Method of administering antidepressant dosage form
GB2370775A (en) * 2001-01-04 2002-07-10 Nimrod Israely Insecticidal composition based on attractant, insecticide and stabilizer, the outer surface of which expands & loses viscosity on contact with humidity

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1492019A1 (en) * 1963-06-20 1969-02-20 Ministerul Ind Petrolului Si C Surcharge for medicinal tablets and methods of obtaining them
NL159577B (en) * 1968-02-15 1979-03-15 Organon Nv PROCESS FOR PREPARING FAST DISINTEGRATING SOLID PARTS.
GB2042888B (en) * 1979-03-05 1983-09-28 Teijin Ltd Preparation for administration to the mucosa of the oral or nasal cavity
US4226849A (en) * 1979-06-14 1980-10-07 Forest Laboratories Inc. Sustained release therapeutic compositions
US4259314A (en) * 1979-12-10 1981-03-31 Hans Lowey Method and composition for the preparation of controlled long-acting pharmaceuticals

Also Published As

Publication number Publication date
EP0068446B1 (en) 1985-12-18
AU8536182A (en) 1983-01-06
ZA824496B (en) 1983-04-27
JPS5843927A (en) 1983-03-14
ATE16979T1 (en) 1986-01-15
DK173480B1 (en) 2000-12-18
FI78391C (en) 1989-08-10
SU1375114A3 (en) 1988-02-15
IE821201L (en) 1982-12-26
EP0068446A2 (en) 1983-01-05
JPH0569806B2 (en) 1993-10-01
EP0068446A3 (en) 1983-07-20
FI78391B (en) 1989-04-28
CA1208556A (en) 1986-07-29
ES8308699A1 (en) 1983-10-01
EP0068446B2 (en) 1988-12-07
DE3268012D1 (en) 1986-01-30
FI822276L (en) 1982-12-27
DE3125178A1 (en) 1983-01-13
IE53104B1 (en) 1988-06-22
ES513422A0 (en) 1983-10-01
HU189148B (en) 1986-06-30
DK287982A (en) 1982-12-27
FI822276A0 (en) 1982-06-24

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired