Thick shrink film having high oxygen transmission rate
Abstract
A multilayer film comprising: (A) a first layer which is a first outer film layer and which serves as a heat seal layer, the first layer comprising a first polymer, the first layer having a thickness of 2 to 20 percent the total thickness of the multilayer film; (I) ethylene / butyl acrylate: and (B) at least one second layer which serves as a layer of high oxygen transmission, the at least a second layer essentially of at least one member selected from the group consisting being composed (ii) homogeneous ethylene / alpha-olefin having a density less than 0 92 g / cc; (Iii) ethylene / methyl acrylate having a content of methyl acrylate mer from 20 to 24 mole percent; (Iv) ethylene / vinyl acetate having a content of vinyl acetate mer 10 to 30 mole percent; (V) block copolymer styrene butadiene; and at least one second layer has a thickness from 80 to 98 percent of the total thickness of the multilayer film; characterized in that the total thickness of the multilayer film is at least 0, (1, 6 mils) 038 mm and the film has an oxygen transmission rate of at least 10,000 cc / m2 / 24 STP.
Term
No projected expiry on record.
- Priority
- Filed
- Granted
- Today
15 members in 9 offices
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 37978403 | United States of America | A |
Members15
| Document | Office | Kind | |
|---|---|---|---|
| US2004175518A1 | United States of America | A1 | |
| AU2004217906A1 | Australia | A1 | |
| CA2517891A1 | Canada | A1 | |
| WO2004078475A1 | World Intellectual Property Organization (WIPO) | A1 | |
| EP1599337A1 | European Patent Office (EPO) | A1 | |
| EP1599337B1 | European Patent Office (EPO) | B1 | |
| AT363384TThis record | Austria | T | |
| DE602004006723D1 | Germany | D1 | |
| ES2286619T3 | Spain | T3 | |
| DE602004006723T2 | Germany | T2 | |
| US7338708B2 | United States of America | B2 | |
| NZ542133A | New Zealand | A | |
| AU2004217906B2 | Australia | B2 | |
| AU2004217906B9 | Australia | B9 | |
| CA2517891C | Canada | C |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased as to paragraph 5 lit. 3 law introducing patent treatiesCeasedRER | RER |
Numbers
- Application
- 4717958
Titles2
- German
- SCHRUMPF-FILM MIT HOHER SAUERSTOFFDURCHLÄSSIGKEIT UND SCHICHTDICKE
- English
- SHRINK FILM WITH HIGH OXYGEN PURITY AND LAYER THICKNESS
Classification
- CPC, 14
- B32B27/08
- B32B27/30
- B32B2307/31
- B32B2307/724
- B32B2307/736
- B32B2309/105
- B32B2439/70
- Y10T428/1328
- Y10T428/1334
- Y10T428/1352
- Y10T428/2817
- Y10T428/2826
- Y10T428/31855
- Y10T428/31938
- IPC, 5
- B32B27 08
- B32B27 30
- B32B27 32
- B65D65 40
- F16B4 00