EP0191184A3
Thickeners having two ionic components and use thereof in aqueous compositions
Abstract
A thickener composition comprised of a polymer having as the major recurring structural unit an acryl-amidoal- kanesulfonic acid or derivative thereof and a polyvalent metal crosslinking agent is provided. The compositions are useful for thickening aqueous solutions within a specified range of pH. The thickener is effective even in aqueous compositions having high levels of electrolytes.
Term
Term ended
Projected expiry passed 13 December 2005, 20.8 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| GB1451706A | Cites | United Kingdom | A | Search report |
| US3931089A | Cites | United States of America | A | Search report |
| US4018286A | Cites | United States of America | X | Search report |
3 members in 2 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 681530 | United States of America | – | |
| 68153084 | United States of America | A | |
| 681530 | – | – | – |
| US19840681530 | – | – | – |
Members3
| Document | Office | Kind | |
|---|---|---|---|
| EP0191184A2 | European Patent Office (EPO) | A2 | |
| US4655943A | United States of America | A | |
| EP0191184A3This record | European Patent Office (EPO) | A3 |
9 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| First examination report despatched17Q | 17Q | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Main classification (correction)RHK1 | RHK1 | |
| Designated contracting statesAK | AK | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 0191184
- Publication, DOCDB
- 0191184
- Publication, EPODOC
- EP0191184
- Application
- 85115893
- Application, DOCDB
- 85115893
- Application, EPODOC
- EP19850115893
Titles3
- English
- Thickeners having two ionic components and use thereof in aqueous compositions
- French
- Epaississants ayant deux composants ioniques et leur utilisation dans des compositions aqueuses
- German
- Verdickungsmittel mit zwei ionischen Komponenten und ihre Verwendung in wässrigen Systemen
Classification
- CPC, 6
- C09K8/035
- C08J3/03
- C09K3/00
- C09K8/685
- Y10S507/922
- Y10S507/903
- IPC, 5
- C08J3 03
- C09K3 00
- C09K8 035
- C09K8 68
- C09K23 52
Designated states10
- Contracting states, 10
- Austria
- Belgium
- Switzerland
- Germany
- France
- United Kingdom
- Italy
- Liechtenstein
- Netherlands (Kingdom of the)
- Sweden