GB1409280A - Coating materials for enteric medicaments - Google Patents
Coating materials for enteric medicamentsInfo
- Publication number
- GB1409280A GB1409280A GB4675772A GB4675772A GB1409280A GB 1409280 A GB1409280 A GB 1409280A GB 4675772 A GB4675772 A GB 4675772A GB 4675772 A GB4675772 A GB 4675772A GB 1409280 A GB1409280 A GB 1409280A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen
- copolymer
- alkyl
- carboxylic acid
- partial
- 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
Links
Classifications
-
- 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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5084—Mixtures of one or more drugs in different galenical forms, at least one of which being granules, microcapsules or (coated) microparticles according to A61K9/16 or A61K9/50, e.g. for obtaining a specific release pattern or for combining different drugs
-
- 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
- A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
- A61K9/2806—Coating materials
- A61K9/2833—Organic macromolecular compounds
- A61K9/284—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
- A61K9/2846—Poly(meth)acrylates
-
- 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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/4891—Coated capsules; Multilayered drug free capsule shells
-
- 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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5073—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings
- A61K9/5078—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings with drug-free core
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Medicinal Chemistry (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Medicinal Preparation (AREA)
- Polyesters Or Polycarbonates (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
1409280 Partial alkylene glycol ether esters of copolymers ELI LILLY & CO 11 Oct 1972 [12 Oct 1971] 46757/72 Heading C3P [Also in Division A5] A partial alkylene glycol ether ester of a copolymer having as monomers a C 1 -C 4 alkyl acrylate and an unsaturated polybasic carboxylic acid anhydride, a molecular weight of at least 14,000 and comprising structural units of formula or wherein R 1 is C 1 -C 4 alkyl, R 2 is hydrogen or methyl, R 3 and R 4 are hydrogen or the moiety wherein R 5 is hydrogen or diethyl and R 6 is C 1 -C 4 alkyl, with the proviso that from 10 to 50% of the R 3 and R 4 groups are other than hydrogen, q is a whole number from 1 to 4 and x and y are whole numbers from 1 to 5 may be prepared by copolymerizing a C 1 -C 4 alkyl acrylate and an unsaturated polybasic carboxylic acid anhydride in a mole ratio of from 1 : 5 to 5 : 1 and esterifying the copolymer thus obtained with a C 1 -C 4 alkyl ether of a C 2 or C 3 alkylene glycol having from 1 to 4 alkylene units such that from 10 to 50% of the available carboxylic acid moieties of the copolymer are esterified with one ether. A coating composition for entenic medicaments comprises a mixture of such an ester and a partial C 1 -C 4 alkanol ester of the same copolymer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18859171A | 1971-10-12 | 1971-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1409280A true GB1409280A (en) | 1975-10-08 |
Family
ID=22693788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4675772A Expired GB1409280A (en) | 1971-10-12 | 1972-10-11 | Coating materials for enteric medicaments |
Country Status (25)
| Country | Link |
|---|---|
| JP (1) | JPS4847590A (en) |
| AR (1) | AR194852A1 (en) |
| AT (2) | AT316139B (en) |
| AU (1) | AU473557B2 (en) |
| BE (1) | BE789919A (en) |
| BR (1) | BR7207119D0 (en) |
| CA (1) | CA1004799A (en) |
| CH (1) | CH575967A5 (en) |
| DD (2) | DD103248A5 (en) |
| DE (1) | DE2250028A1 (en) |
| DK (1) | DK138503B (en) |
| ES (1) | ES407563A1 (en) |
| FR (1) | FR2157847B1 (en) |
| GB (1) | GB1409280A (en) |
| HU (1) | HU165803B (en) |
| IE (1) | IE36731B1 (en) |
| IL (1) | IL40520A (en) |
| IT (1) | IT990509B (en) |
| NL (1) | NL7213765A (en) |
| PH (1) | PH13179A (en) |
| PL (2) | PL102291B1 (en) |
| RO (1) | RO62797A (en) |
| SE (2) | SE400979B (en) |
| YU (1) | YU34904B (en) |
| ZA (1) | ZA727066B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2164339A (en) * | 1984-09-11 | 1986-03-19 | Ciba Geigy Ag | Polymaleic anhydride derivatives |
| GB2340521A (en) * | 1998-08-15 | 2000-02-23 | Sofitech Nv | Shale-stabilizing additives |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1115596B (en) * | 1978-03-13 | 1986-02-03 | Bayer Italia Spa | METHOD FOR THE PREPARATION OF GASTORESISTANT AND ENTERO-SOLUBLE MICROGRANULES OF PHARMACEUTICAL SUBSTANCES, IN PARTICULAR OF PROTEIN SUBSTANCES AND MICROGRANULES PREPARED WITH THE METHOD |
| AU4428000A (en) * | 1999-05-14 | 2000-12-05 | Coraltis Ltd. | Pulse-delivery oral compositions |
| CN113855643B (en) * | 2021-11-10 | 2022-11-11 | 葵花药业集团佳木斯鹿灵制药有限公司 | Mesalazine sustained release preparation for colon-specific drug release and preparation process thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE575343A (en) * | 1955-09-09 | |||
| US3369003A (en) * | 1962-03-06 | 1968-02-13 | Sinclair Research Inc | Polymers of tertiary-alkoxyalkyl esters |
| NL289626A (en) * | 1962-03-06 | 1900-01-01 | ||
| US3387061A (en) * | 1966-05-04 | 1968-06-04 | Union Carbide Corp | Chemical reaction product of polycarboxylic acid and a polymeric polyether |
| GB1213030A (en) * | 1968-08-16 | 1970-11-18 | Daicel Ltd | Process for producing a graft copolymer |
| JPS4931557A (en) * | 1972-07-22 | 1974-03-22 |
-
1972
- 1972-10-03 ZA ZA727066A patent/ZA727066B/en unknown
- 1972-10-04 IE IE1342/72A patent/IE36731B1/en unknown
- 1972-10-05 AU AU47451/72A patent/AU473557B2/en not_active Expired
- 1972-10-06 PH PH13985A patent/PH13179A/en unknown
- 1972-10-06 IL IL40520A patent/IL40520A/en unknown
- 1972-10-06 CA CA153,435A patent/CA1004799A/en not_active Expired
- 1972-10-11 ES ES407563A patent/ES407563A1/en not_active Expired
- 1972-10-11 AR AR244601A patent/AR194852A1/en active
- 1972-10-11 HU HUEI436A patent/HU165803B/hu unknown
- 1972-10-11 DK DK500572AA patent/DK138503B/en unknown
- 1972-10-11 SE SE7213104A patent/SE400979B/en unknown
- 1972-10-11 FR FR7235960A patent/FR2157847B1/fr not_active Expired
- 1972-10-11 NL NL7213765A patent/NL7213765A/xx not_active Application Discontinuation
- 1972-10-11 BE BE789919D patent/BE789919A/en unknown
- 1972-10-11 GB GB4675772A patent/GB1409280A/en not_active Expired
- 1972-10-11 IT IT30357/72A patent/IT990509B/en active
- 1972-10-12 JP JP47102327A patent/JPS4847590A/ja active Pending
- 1972-10-12 AT AT876372A patent/AT316139B/en not_active IP Right Cessation
- 1972-10-12 BR BR007119/72A patent/BR7207119D0/en unknown
- 1972-10-12 DD DD166198A patent/DD103248A5/xx unknown
- 1972-10-12 YU YU2556/72A patent/YU34904B/en unknown
- 1972-10-12 CH CH1490772A patent/CH575967A5/xx not_active IP Right Cessation
- 1972-10-12 DD DD176088*A patent/DD109508A5/xx unknown
- 1972-10-12 PL PL1972197424A patent/PL102291B1/en unknown
- 1972-10-12 AT AT858173*7A patent/AT329185B/en active
- 1972-10-12 DE DE2250028A patent/DE2250028A1/en not_active Ceased
- 1972-10-12 RO RO7200072494A patent/RO62797A/en unknown
- 1972-10-12 PL PL1972158236A patent/PL76176B1/xx unknown
-
1976
- 1976-04-23 SE SE7604731A patent/SE411123B/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2164339A (en) * | 1984-09-11 | 1986-03-19 | Ciba Geigy Ag | Polymaleic anhydride derivatives |
| US4734204A (en) * | 1984-09-11 | 1988-03-29 | Ciba-Geigy Corporation | Polymaleic anhydride derivatives |
| GB2340521A (en) * | 1998-08-15 | 2000-02-23 | Sofitech Nv | Shale-stabilizing additives |
| GB2340521B (en) * | 1998-08-15 | 2000-09-13 | Sofitech Nv | Shale-stabilizing additives |
Also Published As
| Publication number | Publication date |
|---|---|
| AU473557B2 (en) | 1976-06-24 |
| AT316139B (en) | 1974-06-25 |
| YU255672A (en) | 1979-10-31 |
| FR2157847A1 (en) | 1973-06-08 |
| DK138503C (en) | 1979-02-26 |
| FR2157847B1 (en) | 1975-10-31 |
| DK138503B (en) | 1978-09-18 |
| PL76176B1 (en) | 1975-02-28 |
| ES407563A1 (en) | 1976-02-01 |
| CH575967A5 (en) | 1976-05-31 |
| ATA858173A (en) | 1975-07-15 |
| CA1004799A (en) | 1977-02-01 |
| IL40520A (en) | 1975-12-31 |
| YU34904B (en) | 1980-04-30 |
| IT990509B (en) | 1975-07-10 |
| ZA727066B (en) | 1974-05-29 |
| SE400979B (en) | 1978-04-17 |
| SE411123B (en) | 1979-12-03 |
| IL40520A0 (en) | 1972-12-29 |
| AR194852A1 (en) | 1973-08-24 |
| AU4745172A (en) | 1974-04-11 |
| HU165803B (en) | 1974-11-28 |
| PL102291B1 (en) | 1979-03-31 |
| DD103248A5 (en) | 1974-01-12 |
| DD109508A5 (en) | 1974-11-12 |
| RO62797A (en) | 1977-10-15 |
| PH13179A (en) | 1980-01-08 |
| BE789919A (en) | 1973-04-11 |
| NL7213765A (en) | 1973-04-16 |
| IE36731L (en) | 1973-04-12 |
| SE7604731L (en) | 1976-04-23 |
| JPS4847590A (en) | 1973-07-06 |
| IE36731B1 (en) | 1977-02-02 |
| BR7207119D0 (en) | 1973-07-19 |
| AT329185B (en) | 1976-04-26 |
| DE2250028A1 (en) | 1973-04-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |