ES2109136B1 - BIODEGRADABLE CARBONED SKELETON POLYMERS OF RYE ACETALS AND ALCOHOLS, PROCEDURE FOR THEIR OBTAINING AND THE CORRESPONDING COMPOSITION AND USE. - Google Patents
BIODEGRADABLE CARBONED SKELETON POLYMERS OF RYE ACETALS AND ALCOHOLS, PROCEDURE FOR THEIR OBTAINING AND THE CORRESPONDING COMPOSITION AND USE.Info
- Publication number
- ES2109136B1 ES2109136B1 ES09400847A ES9400847A ES2109136B1 ES 2109136 B1 ES2109136 B1 ES 2109136B1 ES 09400847 A ES09400847 A ES 09400847A ES 9400847 A ES9400847 A ES 9400847A ES 2109136 B1 ES2109136 B1 ES 2109136B1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- alcohols
- procedure
- obtaining
- biodegradable
- 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 - Lifetime
Links
Landscapes
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
POLIMEROS BIODEGRADABLES DE ESQUELETO CARBONADO DE ACETALES DE CETENO Y ALCOHOLES, PROCEDIMIENTO PARA SU OBTENCION Y COMPOSICION Y UTILIZACION CORRESPONDIENTES. EL ESQUELETO CARBONADO DE LOS POLIMERAS ESTA REPRESENTADO POR LA FORMULA REPETITIVA I, DONDE N < 2; R2 GRUPO HIDROCARBONADO SATURADO O INSATURADO; Y A UN ACETAL DE CETENO DE (A) FORMULA III FORMULA R H O UN GRUPO SATURADO O INSATURADO SUSCEPTIBLE DE CONTENER HETERATOMOS; R---R SIGNIFICA QUE LOS R PUEDEN FORMAR CICLO O NO; Y R1 RADICAL TETRAVALENTE UNICO; O (B) FORMULA IV FORMULA R4 H O UN GRUPO HIDROCARBONADO; R4--R4 SIGNIFICA QUE R4 PUEDEN FORMAR CICLO O NO; R3 GRUPO ORGANICO BIVALENTE SUSCEPTIBLE DE CONTENER HETEROATOMOS. ESTOS POLIMERAS SON APROPIADOS COMO SOPORTE DE MEDICAMENTOS Y OTROS AGENTES BENEFICIOSOS UTILIZADOS EN EL AMBITO TERAPEUTICO, PUESTO QUE AL ENTRAR EN CONTACTO CON EL MEDIO FISIOLOGICO EN EL QUE SON UTILIZADOS, SE DEGRADAN Y LIBERAN EL MEDICAMENTO O SIMILAR DE UNA FORMA PROGRESIVA Y CONTROLADA.BIODEGRADABLE CARBON SKELETON SKELETON POLYMERS OF KETENE ACETALS AND ALCOHOLS, PROCEDURE FOR THEIR OBTAINING AND COMPOSITION AND CORRESPONDING USE. THE CARBON SKELETON OF THE POLYMERS IS REPRESENTED BY REPETITIVE FORMULA I, WHERE N <2; R2 SATURATED OR UNSATURATED HYDROCARBON GROUP; AND TO A KETENE ACETAL OF (A) FORMULA III FORMULA R H OR A SATURATED OR UNSATURATED GROUP SUSCEPTIBLE TO CONTAIN HETERATOMES; R --- R MEANS THE R CAN CYCLE OR NOT; AND R1 RADICAL TETRAVALENTE UNICO; OR (B) FORMULA IV FORMULA R4 H OR A HYDROCARBON GROUP; R4 - R4 MEANS THAT R4 MAY CYCLE OR NOT; R3 BIVALENT ORGANIC GROUP SUSCEPTIBLE TO CONTAIN HETEROATOMES. THESE POLYMERAS ARE APPROPRIATE AS A SUPPORT OF MEDICINES AND OTHER BENEFICIAL AGENTS USED IN THE THERAPEUTIC SCOPE, SINCE WHEN THEY COME IN CONTACT WITH THE PHYSIOLOGICAL ENVIRONMENT, THEY DEGRADATE AND RELEASE THE DRUG AND SIMILAR CONTROL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09400847A ES2109136B1 (en) | 1994-04-22 | 1994-04-22 | BIODEGRADABLE CARBONED SKELETON POLYMERS OF RYE ACETALS AND ALCOHOLS, PROCEDURE FOR THEIR OBTAINING AND THE CORRESPONDING COMPOSITION AND USE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09400847A ES2109136B1 (en) | 1994-04-22 | 1994-04-22 | BIODEGRADABLE CARBONED SKELETON POLYMERS OF RYE ACETALS AND ALCOHOLS, PROCEDURE FOR THEIR OBTAINING AND THE CORRESPONDING COMPOSITION AND USE. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2109136A1 ES2109136A1 (en) | 1998-01-01 |
ES2109136B1 true ES2109136B1 (en) | 1998-07-01 |
Family
ID=8285970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES09400847A Expired - Lifetime ES2109136B1 (en) | 1994-04-22 | 1994-04-22 | BIODEGRADABLE CARBONED SKELETON POLYMERS OF RYE ACETALS AND ALCOHOLS, PROCEDURE FOR THEIR OBTAINING AND THE CORRESPONDING COMPOSITION AND USE. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2109136B1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4304767A (en) * | 1980-05-15 | 1981-12-08 | Sri International | Polymers of di- (and higher functionality) ketene acetals and polyols |
US4489056A (en) * | 1982-06-30 | 1984-12-18 | Merck & Co., Inc. | Acid anhydrides as rate controlling agent for the erosion of polymers which latter polymers have beneficial substances dispersed throughout their matrix or where the polymer matrix surrounds the beneficial substance |
US4780319A (en) * | 1985-07-08 | 1988-10-25 | Merck & Co., Inc. | Organic acids as catalysts for the erosion of polymers |
-
1994
- 1994-04-22 ES ES09400847A patent/ES2109136B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2109136A1 (en) | 1998-01-01 |
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ES2109136B1 (en) | BIODEGRADABLE CARBONED SKELETON POLYMERS OF RYE ACETALS AND ALCOHOLS, PROCEDURE FOR THEIR OBTAINING AND THE CORRESPONDING COMPOSITION AND USE. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19980101 Kind code of ref document: A1 Effective date: 19980101 |
|
FA2A | Application withdrawn |
Effective date: 19990217 |