EP0244550A3
Process for encapsulating particles and the encapsulated product of that process
Abstract
High efficiency encapsulation of core particles, particularly halogen bleaches, by (i) encapsulating the core particle in at least two separate coats wherein the melting point of the inner or first coating material is below the melting point of the outer or second coating material, (ii) heating the thus encapsulated particle to a temperature between the melting points of the inner and outer coating materials in order to liquefy the inner coat, and (ill) allowing the liquid inner coat to solidify and form a continuous, nonporous encapsulating coating.

Term
Term ended
Projected expiry passed 22 December 2006, 19.8 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0203239A1 | Cites | European Patent Office (EPO) | AP | Search report |
| CA1056687A | Cites | Canada | A | Search report |
| FR1561127A | Cites | France | A | Search report |
| FR2187290A1 | Cites | France | A | Search report |
| US3944497A | Cites | United States of America | A | Search report |
| US4078099A | Cites | United States of America | A | Search report |
| US4146676A | Cites | United States of America | A | Search report |
| US4347152A | Cites | United States of America | A | Search report |
22 members in 10 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 838276 | United States of America | – | |
| 83827686 | United States of America | A | |
| 83827686 | United States of America | A | |
| 838276 | – | – | – |
| US19860838276 | – | – | – |
Members22
| Document | Office | Kind | |
|---|---|---|---|
| NO863665D0 | Norway | D0 | |
| FI865349A0 | Finland | A0 | |
| US4657784A | United States of America | A | |
| FI865349A | Finland | A | |
| FI865349A7 | Finland | A7 | |
| FI865349L | Finland | L | |
| NO863665L | Norway | L | |
| AU6163086A | Australia | A | |
| JPS62227440A | Japan | A | |
| EP0244550A2 | European Patent Office (EPO) | A2 | |
| US4731195A | United States of America | A | |
| EP0244550A3This record | European Patent Office (EPO) | A3 | |
| NZ217225A | New Zealand | A | |
| AU582265B2 | Australia | B2 | |
| NO166290B | Norway | B | |
| NO166290C | Norway | C | |
| EP0244550B1 | European Patent Office (EPO) | B1 | |
| AT72522T | Austria | T | |
| ATE72522T1 | Austria | T1 | |
| DE3683905D1 | Germany | D1 | |
| ES2038126T3 | Spain | T3 | |
| JP2625113B2 | Japan | B2 |
48 legal events, as 4 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Patent expired after termination of 20 yearsExpiredPE20 | PE20 | GB | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| European patent in force as of 2002-01-01IF02 | IF02 | GB | |
| Announcement of lapse in spainLapsedFD2A | FD2A | ES | |
| Nl: lapsed or anulled due to non-payment of the annual feeLapsedNLV4 | NLV4 | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Be: lapsedLapsedBERE | BERE | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Se: european patent in force in swedenEAL | EAL | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Definitive protectionFG2A | FG2A | ES | |
| Lu: last paid annual feeEPTA | EPTA | EP | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| Fr: translation filedET | ET | EP | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Corresponds to:REF | REF | EP | |
| It: last paid annual feeITTA | ITTA | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Main classification (correction)RHK1 | RHK1 | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 0244550
- Publication, DOCDB
- 0244550
- Publication, EPODOC
- EP0244550
- Application
- 86850446
- Application, DOCDB
- 86850446
- Application, EPODOC
- EP19860850446
Titles3
- English
- Process for encapsulating particles and the encapsulated product of that process
- French
- Procédé d'encapsulation de particules et le produit encapsulé résultant de ce procédé
- German
- Verfahren zum Verkapseln von Teilchen und das verkapselte Produkt dieses Verfahrens
Classification
- CPC, 5
- B01J2/006
- C11D3/395
- C11D17/0039
- Y10T428/2991
- Y10T428/2998
- IPC, 8
- B05D1 22
- B01J2 00
- B01J13 02
- B01J13 04
- C01B11 06
- C11D3 395
- C11D17 00
- C11D17 08
Designated states1
- Contracting states, 1
- Sweden