EP1567250A2
Polyimide blends for gas separation membranes
Abstract
The present invention provides a selectively gas permeable membrane that has a superior combination of permeability and selectivity. The membrane composition includes a Type 1 copolyimide uniformly blended with a Type 2 copolyimide, which polymers are defined by chemical structure more specifically in this disclosure. The invention also provides a method of using the membrane of the copolyimide blend to separate components of gas mixtures.
Term
Term ended
Projected expiry passed 27 October 2023, 2.9 years ago.
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Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US8772417B2 | Cited by | United States of America | Applicant |
36 members in 12 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 430275P | United States of America | – | |
| 43027502 | United States of America | P | |
| 642407 | United States of America | – | |
| 64240703 | United States of America | A | |
| 0304769 | International Bureau of the World Intellectual Property Organization (WIPO) | W |
Members36
| Document | Office | Kind | |
|---|---|---|---|
| US2004107830A1 | United States of America | A1 | |
| CA2500346A1 | Canada | A1 | |
| CA2501145A1 | Canada | A1 | |
| WO2004050223A2 | World Intellectual Property Organization (WIPO) | A2 | |
| WO2004050590A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU2003278411A1 | Australia | A1 | |
| AU2003278411A8 | Australia | A8 | |
| AU2003278440A1 | Australia | A1 | |
| US2004147796A1 | United States of America | A1 | |
| US2004159233A1 | United States of America | A1 | |
| WO2005032702A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2004050223A3 | World Intellectual Property Organization (WIPO) | A3 | |
| KR20050071655A | Republic of Korea | A | |
| EP1567250A2This record | European Patent Office (EPO) | A2 | |
| EP1567466A1 | European Patent Office (EPO) | A1 | |
| BR0316954A | Brazil | A | |
| CN1717378A | China | A | |
| JP2006507939A | Japan | A | |
| JP2006508176A | Japan | A | |
| US7018445B2 | United States of America | B2 | |
| US7025804B2 | United States of America | B2 | |
| CN1319916C | China | C | |
| US2007135670A1 | United States of America | A1 | |
| US7250545B2 | United States of America | B2 | |
| US7399897B2 | United States of America | B2 | |
| JP4249138B2 | Japan | B2 | |
| EP1567250B1 | European Patent Office (EPO) | B1 | |
| AT429971T | Austria | T | |
| ATE429971T1 | Austria | T1 | |
| DE60327461D1 | Germany | D1 | |
| JP4494222B2 | Japan | B2 | |
| SG164296A1 | Singapore | A1 | |
| KR101092158B1 | Republic of Korea | B1 | |
| CA2500346C | Canada | C | |
| CA2501145C | Canada | C | |
| BRPI0316954B1 | Brazil | B1 |
57 legal events, as 7 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
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| 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 | |
| Patent expired after termination of 20 yearsExpiredPE20 | PE20 | GB | |
| Patent expired because of reaching the maximum lifetime of a patentExpiredMK | MK | NL | |
| Expiry of rightR071 | R071 | DE | |
| 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 | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| 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 | |
| Patent lapsedLapsedMM4A | MM4A | IE | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| No opposition filedOpposition26N | 26N | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | 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 | |
| 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 | |
| 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 | |
| European patents granted designating irelandGrantedFG4D | FG4D | IE | |
| Corresponds to:REF | REF | EP | |
| European patent takes effect as a national patent in ch/liEP | EP | CH | |
| 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 | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Request for extension of the european patent (deleted)DAX | DAX | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | 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
- 1567250
- Application
- 37697174
Titles3
- German
- MISCHUNGEN AUS POLYIMID FÜR MEMBRANEN ZUR GASTRENNUNG
- English
- POLYIMIDE BLENDS FOR GAS SEPARATION MEMBRANES
- French
- MELANGES DE POLYIMIDES POUR MEMBRANES DE SEPARATION DE GAZ
Classification
- CPC, 5
- B01D71/64
- B01D53/228
- C08L79/08
- C08L2205/02
- Y02C20/40
- IPC, 3
- B01D53 22
- B01D71 64
- C08L79 08
Designated states31
- Contracting states, 27
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Portugal
- Romania
- Sweden
and 3 moreShow fewer
- Slovenia
- Slovakia
- Türkiye
- Extension states, 4
- Albania
- Lithuania
- Latvia
- North Macedonia