Curable organopolysiloxane composition
Abstract
An organopolysiloxane composition comprising: (A) an organopolysiloxane having a silicon-bonded vinyl group and a silicon-bonded hydrogen atom, (B) an organohydrogenpolysiloxane which has the following average composition formula: wherein R is a substituted or unsubstituted monovalent hydrocarbon group containing no unsaturated bond therein, and a and b are numbers satisfying the inequalities: 0 < a < 3, 0 < b ≦ 2, and 1 ≦ a + b ≦ 3, and which contains at least two silicon-bonded hydrogen atoms in its molecule, and (C) an addition reaction catalyst, the vinyl groups in the component (A) being present in a specified amount. The composition is capable of giving silicone gels with effective inhibition of exudation of organopolysiloxane oils.
Term
Term ended
Projected expiry passed 1 March 2011, 15.6 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| US4339564A | Cites | United States of America | A | Search report |
| US4554339A | Cites | United States of America | A | Search report |
3 priority claims, no other members on record
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 5140990 | Japan | – | |
| 5140990 | Japan | A | |
| JP19900051409 | – | – | – |
20 legal events, as 2 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Notification of lapseLapsedST | ST | FR | |
| 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 | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | 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 | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | 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 | |
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| 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
- 0444960
- Publication, DOCDB
- 0444960
- Publication, EPODOC
- EP0444960
- Application
- 301736
- Application, DOCDB
- 91301736
- Application, EPODOC
- EP19910301736
Titles3
- English
- Curable organopolysiloxane composition
- German
- Härtbare Organopolysiloxan-Massen
- French
- Compositions d'organopolysiloxane durcissables
Classification
- CPC, 3
- C08L83/04
- C08G77/12
- C08G77/20
- IPC, 3
- C08L83 05
- C08L83 04
- C08L83 07
Designated states3
- Contracting states, 3
- Germany
- France
- United Kingdom