Enhanced thermally stable vinylidene chloride copolymer containing processing aid and extruded vinylidene chloride copolymer flexible packaging film
Abstract
This invention relates to films made from vinylidene chloride copolymers. Specifically, this invention relates to a method and composition for lowering the oxygen permeability and enhancing the thermal stability and enhancing the melt shear stability of packaging films having a layer of vinylidene chloride copolymer film of low molecular weight. The conventional stabilizer/plasticizer combination of expoxy resin and 2-ethyl-hexyl diphenyl phosphate may be employed with the vinylidene chloride copolymer. The layer of vinylidene chloride copolymer can be as thin as 4.57 micron (0.18 mil).
Term
Term ended
Projected expiry passed 8 June 2010, 16.3 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0281634A1 | Cites | European Patent Office (EPO) | A | Search report |
| DE3621958A1 | Cites | Germany | XD | Search report |
| WO8908680A1 | Cites | World Intellectual Property Organization (WIPO) | XP | Search report |
12 members in 8 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 364664 | United States of America | – | |
| 36466489 | United States of America | A | |
| 36466489 | United States of America | A | |
| US19890364664 | – | – | – |
Members12
| Document | Office | Kind | |
|---|---|---|---|
| CA2018596A1 | Canada | A1 | |
| EP0402173A2 | European Patent Office (EPO) | A2 | |
| AU5689990A | Australia | A | |
| KR910000912A | Republic of Korea | A | |
| JPH0335043A | Japan | A | |
| US5030511A | United States of America | A | |
| ZA904466B | South Africa | B | |
| EP0402173A3This record | European Patent Office (EPO) | A3 | |
| NZ233834A | New Zealand | A | |
| US5147594A | United States of America | A | |
| AU631430B2 | Australia | B2 | |
| KR960006794B1 | Republic of Korea | B1 |
8 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application refused18R | 18R | |
| Information on the status of an ep patent application or granted ep patentGrantedSTAA | STAA | |
| First examination report despatched17Q | 17Q | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Search report despatchedPUAL | PUAL | |
| Designated contracting statesAK | AK | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phasePUAI | PUAI |
Numbers
- Publication
- 0402173
- Publication, DOCDB
- 0402173
- Publication, EPODOC
- EP0402173
- Application
- 306300
- Application, DOCDB
- 90306300
- Application, EPODOC
- EP19900306300
Titles3
- German
- Verarbeitungshilfsmittel enthaltendes Vinylidenchloridcopolymer mit verbesserter Wärmestabilität und extrudierte biegsame Verpackungsfolie aus Vinylidenchloridcopolymer
- English
- Enhanced thermally stable vinylidene chloride copolymer containing processing aid and extruded vinylidene chloride copolymer flexible packaging film
- French
- Copolymère le chlorure de vinylidène ayant une stabilité thermique améliorée contenant un aide de traitement et film d'emballage extrudé flexible préparé à partir de copolymère de chlorure de vinylidène
Classification
- CPC, 30
- B32B27/08
- C08L27/08
- B29K2027/08
- C08J5/18
- C08J2327/08
- C08K3/32
- C08K5/1515
- C08K5/523
- C08L23/28
- C08L23/30
- Y10S428/91
- Y10T428/265
- Y10T428/3192
- Y10T428/31928
- Y10T428/31913
- B32B27/304
- B32B27/306
- B29C48/08
- B29C48/022
- B32B27/32
- B29C48/18
- B29C48/0018
- C08L2203/16
- C08L2205/06
- B32B2307/518
- B32B2307/736
- B32B2307/7244
- B32B38/0008
- B32B2327/06
- B32B2310/0887
- IPC, 12
- B65D65 40
- B29C47 00
- B29K27 00
- B32B27 08
- B32B27 30
- C08J5 18
- C08K3 32
- C08K5 1515
- C08K5 523
- C08L23 28
- C08L23 30
- C08L27 08
Designated states6
- Contracting states, 6
- Belgium
- Germany
- France
- United Kingdom
- Italy
- Netherlands (Kingdom of the)