Polyelectrolyte coverings on biological templates
Abstract
Process for the preparation of capsules with a shell of polyelectrolytes, characterized in that on a template (templat) selected from aggregates of biological materials and / or amphiphilic several successive layers of polyelectrolyte molecules oppositely charged are deposited, preparing a dispersion first of the particles of the template in an aqueous solution, then adding to this dispersion a kind of polyelectrolyte load equal or opposite to that of the particle surface of the template loading, then adding after the separation of molecules polyelectrolytes surplus may be present, the species of polyelectrolyte charged oppositely used for the construction of the second layer and then optionally depositing, alternatively, more layers of polyelectrolyte molecules oppositely charged and eventually disintegrates then the template.
Term
No projected expiry on record.
- Priority
- Filed
- Granted
- Today
58 members in 8 offices
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 98113181 | European Patent Office (EPO) | A | |
| 19907552 | Germany | A |
Members58
| Document | Office | Kind | |
|---|---|---|---|
| WO9947252A2 | World Intellectual Property Organization (WIPO) | A2 | |
| WO9947253A1 | World Intellectual Property Organization (WIPO) | A1 | |
| DE19812083A1 | Germany | A1 | |
| WO9947252A3 | World Intellectual Property Organization (WIPO) | A3 | |
| EP0972563A1 | European Patent Office (EPO) | A1 | |
| WO0003797A1 | World Intellectual Property Organization (WIPO) | A1 | |
| DE19907552A1 | Germany | A1 | |
| EP1064087A2 | European Patent Office (EPO) | A2 | |
| EP1064088A1 | European Patent Office (EPO) | A1 | |
| EP1098696A1 | European Patent Office (EPO) | A1 | |
| JP2002506719A | Japan | A | |
| EP1064087A4 | European Patent Office (EPO) | A4 | |
| JP2002520151A | Japan | A | |
| US6479146B1 | United States of America | B1 | |
| EP1064088B1 | European Patent Office (EPO) | B1 | |
| AT228883T | Austria | T | |
| ATE228883T1 | Austria | T1 | |
| DE29924358U1 | Germany | U1 | |
| DE69904307D1 | Germany | D1 | |
| JP2003522621A | Japan | A | |
| DE69904307T2 | Germany | T2 | |
| US2003219384A1 | United States of America | A1 | |
| US6699501B1 | United States of America | B1 | |
| EP1064087B1 | European Patent Office (EPO) | B1 | |
| AT316420T | Austria | T | |
| ATE316420T1 | Austria | T1 | |
| DE59913080D1 | Germany | D1 | |
| EP1647270A2 | European Patent Office (EPO) | A2 | |
| EP1647326A2 | European Patent Office (EPO) | A2 | |
| DK1064087T3 | Denmark | T3 | |
| US7101575B2 | United States of America | B2 | |
| EP1647270A3 | European Patent Office (EPO) | A3 | |
| EP1647326A3 | European Patent Office (EPO) | A3 | |
| US2006275373A1 | United States of America | A1 | |
| US2006275374A1 | United States of America | A1 | |
| US2006275375A1 | United States of America | A1 | |
| EP1098696B1 | European Patent Office (EPO) | B1 | |
| AT377449TThis record | Austria | T | |
| ATE377449T1 | Austria | T1 | |
| EP1867325A2 | European Patent Office (EPO) | A2 | |
| DE59914547D1 | Germany | D1 | |
| ES2292250T3 | Spain | T3 | |
| EP1647270B1 | European Patent Office (EPO) | B1 | |
| AT433747T | Austria | T | |
| ATE433747T1 | Austria | T1 | |
| EP1867325A3 | European Patent Office (EPO) | A3 | |
| DE59915041D1 | Germany | D1 | |
| EP1098696B2 | European Patent Office (EPO) | B2 | |
| ES2292250T5 | Spain | T5 | |
| JP4650976B2 | Japan | B2 | |
| EP1647326B1 | European Patent Office (EPO) | B1 | |
| EP1867325B1 | European Patent Office (EPO) | B1 | |
| AT524165T | Austria | T | |
| AT524166T | Austria | T | |
| ATE524165T1 | Austria | T1 | |
| ATE524166T1 | Austria | T1 | |
| US8092836B2 | United States of America | B2 | |
| US8168226B2 | United States of America | B2 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased due to non-payment of the annual feeCeasedREN | REN |
Numbers
- Application
- 99938268
Titles2
- German
- POLYELEKTROLYTHÜLLEN AUF BIOLOGISCHEN TEMPLATEN
- English
- POLYELECTROLYTHOULES ON BIOLOGICAL TEMPLATES
Classification
- CPC, 3
- B01J13/02
- A61K9/5089
- B01J13/22
- IPC, 5
- A23L1 00
- A61K9 50
- A61K9 54
- B01J13 02
- B01J13 22