CA2417182A1 - Moisture barrier film - Google Patents
Moisture barrier film Download PDFInfo
- Publication number
- CA2417182A1 CA2417182A1 CA002417182A CA2417182A CA2417182A1 CA 2417182 A1 CA2417182 A1 CA 2417182A1 CA 002417182 A CA002417182 A CA 002417182A CA 2417182 A CA2417182 A CA 2417182A CA 2417182 A1 CA2417182 A1 CA 2417182A1
- Authority
- CA
- Canada
- Prior art keywords
- copolymer
- moisture barrier
- oxygen barrier
- layer
- propylene polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004888 barrier function Effects 0.000 title abstract 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 239000010410 layer Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 abstract 2
- 229920001577 copolymer Polymers 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229920001155 polypropylene Polymers 0.000 abstract 2
- 239000013032 Hydrocarbon resin Substances 0.000 abstract 1
- 239000012792 core layer Substances 0.000 abstract 1
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 abstract 1
- 229920006213 ethylene-alphaolefin copolymer Polymers 0.000 abstract 1
- 229920001903 high density polyethylene Polymers 0.000 abstract 1
- 239000004700 high-density polyethylene Substances 0.000 abstract 1
- 229920006270 hydrocarbon resin Polymers 0.000 abstract 1
- 229920000554 ionomer Polymers 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 229920001083 polybutene Polymers 0.000 abstract 1
Landscapes
- Laminated Bodies (AREA)
Abstract
A multiple layer film useful in moisture barrier packaging applications has at least one layer comprising a blend of propylene polymer or copolymer, and a hydrocarbon resin; and two additional layers comprising a propylene polymer or copolymer, ethylene alpha olefin copolymer, ionomer, polybutene, or blends thereof. A core layer of ethylene vinyl alcohol copolymer or other oxygen barrier material, or high density polyethylene, can be included in some embodiments. A
preferred embodiment of the multi-layer film exhibits excellent moisture barrier and optical properties, and shrink properties as well if the film has been oriented. High oxygen barrier is also a feature in embodiments including EVOH or other oxygen barrier materials.
preferred embodiment of the multi-layer film exhibits excellent moisture barrier and optical properties, and shrink properties as well if the film has been oriented. High oxygen barrier is also a feature in embodiments including EVOH or other oxygen barrier materials.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US94724492A | 1992-09-18 | 1992-09-18 | |
| US07/947,244 | 1992-09-18 | ||
| US08/116,798 | 1993-09-10 | ||
| US08/116,798 US5482771A (en) | 1992-09-18 | 1993-09-10 | Moisutre barrier film |
| CA 2106258 CA2106258C (en) | 1992-09-18 | 1993-09-15 | Moisture barrier film |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2106258 Division CA2106258C (en) | 1992-09-18 | 1993-09-15 | Moisture barrier film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2417182A1 true CA2417182A1 (en) | 1994-03-19 |
| CA2417182C CA2417182C (en) | 2003-12-02 |
Family
ID=27169591
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002417182A Expired - Fee Related CA2417182C (en) | 1992-09-18 | 1993-09-15 | Moisture barrier film |
| CA002417184A Expired - Fee Related CA2417184C (en) | 1992-09-18 | 1993-09-15 | Moisture barrier film |
| CA002417179A Expired - Fee Related CA2417179C (en) | 1992-09-18 | 1993-09-15 | Moisture barrier film |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002417184A Expired - Fee Related CA2417184C (en) | 1992-09-18 | 1993-09-15 | Moisture barrier film |
| CA002417179A Expired - Fee Related CA2417179C (en) | 1992-09-18 | 1993-09-15 | Moisture barrier film |
Country Status (1)
| Country | Link |
|---|---|
| CA (3) | CA2417182C (en) |
-
1993
- 1993-09-15 CA CA002417182A patent/CA2417182C/en not_active Expired - Fee Related
- 1993-09-15 CA CA002417184A patent/CA2417184C/en not_active Expired - Fee Related
- 1993-09-15 CA CA002417179A patent/CA2417179C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2417184A1 (en) | 1994-03-19 |
| CA2417182C (en) | 2003-12-02 |
| CA2417179A1 (en) | 1994-03-19 |
| CA2417179C (en) | 2003-11-04 |
| CA2417184C (en) | 2003-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |