Method of producing a silicone water-based elastomer
Abstract
This invention describes a method of producing a silicone elastomer from an emulsion. When the ingredients are mixed together, the resulting latex can be used immediately. Removing the water from the latex results in a silicone elastomer. The method combines (A) an anionically stabilized, hydroxyl endblocked polydiorganosiloxane, present as an emulsion of dispersed particles in water, the emulsion having a pH of greater than 9, (B) dialkyltindicarboxylate, (C) alkylorthosilicate, (D) colloidal silica, and optionally (E) water, admixing (A) and (B) only in the presence of (C) to produce a dispersion of the ingredients in water. The ingredients can be distributed into a two-part system for storage. One embodiment includes fibers, lauryl alcohol, or a mixture of both in the emulsion; then forms an open-cell, elastomeric foam by forming a froth from the emulsion and removing the water from the froth.
Term
Term ended
Projected expiry passed 22 May 2006, 20.3 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0097915A1 | Cites | European Patent Office (EPO) | A | Search report |
| US4100124A | Cites | United States of America | A | Search report |
| US4559369A | Cites | United States of America | AP | Search report |
| US4572917A | Cites | United States of America | AP | Search report |
21 members in 8 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 737607 | United States of America | – | |
| 73760785 | United States of America | A | |
| 737607 | – | – | – |
| US19850737607 | – | – | – |
Members21
| Document | Office | Kind | |
|---|---|---|---|
| US4590220A | United States of America | A | |
| AU5784786A | Australia | A | |
| AU5784786A | Australia | A | |
| JPS61272265A | Japan | A | |
| KR860009027A | Republic of Korea | A | |
| US4631296A | United States of America | A | |
| EP0206526A2 | European Patent Office (EPO) | A2 | |
| US4634733A | United States of America | A | |
| US4647618A | United States of America | A | |
| ES555156A0 | Spain | A0 | |
| ES8707998A1 | Spain | A1 | |
| ES557383A0 | Spain | A0 | |
| ES8801339A1 | Spain | A1 | |
| EP0206526A3This record | European Patent Office (EPO) | A3 | |
| AU582441B2 | Australia | B2 | |
| EP0206526B1 | European Patent Office (EPO) | B1 | |
| DE3672403D1 | Germany | D1 | |
| CA1272838A | Canada | A | |
| JPH0447712B2 | Japan | B2 | |
| KR940011190B1 | Republic of Korea | B1 | |
| KR940011191B1 | Republic of Korea | B1 |
29 legal events, as 2 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 | |
| Notification of lapseLapsedST | ST | FR | |
| 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 | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| 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 | |
| Be: lapsedLapsedBERE | BERE | EP | |
| It: last paid annual feeITTA | ITTA | EP | |
| 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 | |
| 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 | |
| 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 | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | 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
- 0206526
- Publication, DOCDB
- 0206526
- Publication, EPODOC
- EP0206526
- Application
- 86303883
- Application, DOCDB
- 86303883
- Application, EPODOC
- EP19860303883
Titles3
- English
- METHOD OF PRODUCING A SILICONE WATER-BASED ELASTOMER
- French
- Procédé de préparation d'une composition contenant un élastomère de polysiloxane et de l'eau
- German
- Verfahren zur Herstellung einer ein Polysiloxanelastomer und Wasser enthaltenden Zusammensetzung
Classification
- CPC, 4
- C08J9/30
- C08J2207/04
- C08J2383/04
- Y10S528/901
- IPC, 10
- C08K5 57
- C08J9 04
- C08J9 12
- C08J9 30
- C08K5 5419
- C08K7 02
- C08K13 02
- C08L83 00
- C08L83 04
- C08L83 06
Designated states1
- Contracting states, 1
- Italy