EP1168469A3
Porous film and separator for battery using the same
Abstract
Provided is a porous film obtained by melt-kneading a high-molecular-weight polyolefin having a weight-average molecular weight of not less than 5 x 105, a thermoplastic resin having a weight-average molecular weight of not more than 2 x 104 and fine particles, molding the kneaded matter into a sheet, and then stretching the sheet. The porous film can be easily and simply prepared, and has a high piercing strength, and hence can be advantageously used as a separator for a battery, particularly for a lithium secondary battery.
Term
Term ended
Projected expiry passed 13 June 2021, 5.3 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| EP1097961A1 | Cites | European Patent Office (EPO) | PX | Search report | 1-10 |
| US4545950A | Cites | United States of America | X | Search report | 1-4,6,7 |
| US5230843A | Cites | United States of America | A | Search report | 1-10 |
17 members in 8 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 2000178006 | Japan | A | |
| 2000178006 | Japan | A | |
| 2000178006 | Japan | – | |
| 2000178006 | – | – | – |
| JP20000178006 | – | – | – |
Members17
| Document | Office | Kind | |
|---|---|---|---|
| CA2350379A1 | Canada | A1 | |
| KR20010112101A | Republic of Korea | A | |
| EP1168469A2 | European Patent Office (EPO) | A2 | |
| CN1331496A | China | A | |
| JP2002069221A | Japan | A | |
| US2002034689A1 | United States of America | A1 | |
| EP1168469A3This record | European Patent Office (EPO) | A3 | |
| US2006055075A1 | United States of America | A1 | |
| CN1840575A | China | A | |
| EP1168469B1 | European Patent Office (EPO) | B1 | |
| DE60128422D1 | Germany | D1 | |
| DE60128422T2 | Germany | T2 | |
| KR100912800B1 | Republic of Korea | B1 | |
| TWI315591B | Taiwan Province of China | B | |
| CN100572438C | China | C | |
| CA2350379C | Canada | C | |
| JP5140896B2 | Japan | B2 |
37 legal events, as 5 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Notification of lapseLapsedST | ST | FR | |
| 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 | |
| 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 | |
| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Lapsed because of non-payment of the annual feeLapsedV1 | V1 | NL | |
| 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 | |
| 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 | |
| Fr: translation filedET | ET | EP | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Designation fees paidAKX | AKX | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAL;LT;LV;MK;RO;SIAX | AX | 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
- 1168469
- Publication, DOCDB
- 1168469
- Publication, EPODOC
- EP1168469
- Application
- 1114390
- Application, DOCDB
- 01114390
- Application, EPODOC
- EP20010114390
Titles3
- German
- Poröser Film und Separator für Batterie die diesen verwendet
- English
- Porous film and separator for battery using the same
- French
- Film poreux et son utilisation comme séparateur pour batterie
Classification
- CPC, 20
- B01D67/0027
- C08J5/18
- B01D2325/34
- B29C55/005
- B29K2023/0683
- B29K2091/00
- B29K2105/04
- B29K2105/16
- C08J2323/06
- Y10T428/249986
- Y02E60/10
- H01M50/417
- H01M50/489
- B01D71/261
- B29C67/202
- H01M10/052
- C08L23/06
- C08L2205/025
- H01M50/411
- H01M50/491
- IPC, 5
- B01D67 00
- B01D71 26
- B29C55 00
- H01M50 417
- H01M50 489
Designated states26
- Contracting states, 20
- Austria
- Belgium
- Switzerland
- Cyprus
- Germany
- Denmark
- Spain
- Finland
- France
- United Kingdom
- Greece
- Ireland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Portugal
- Sweden
- Türkiye
- Extension states, 6
- Albania
- Lithuania
- Latvia
- North Macedonia
- Romania
- Slovenia