IT1236020B - Polyolefin based, multi-layer, thermally retractable film, for packaging and manufacture of various products - Google Patents
Polyolefin based, multi-layer, thermally retractable film, for packaging and manufacture of various productsInfo
- Publication number
- IT1236020B IT1236020B IT9547A IT954789A IT1236020B IT 1236020 B IT1236020 B IT 1236020B IT 9547 A IT9547 A IT 9547A IT 954789 A IT954789 A IT 954789A IT 1236020 B IT1236020 B IT 1236020B
- Authority
- IT
- Italy
- Prior art keywords
- ethylene
- layer
- packaging
- manufacture
- various products
- Prior art date
Links
Abstract
Multi-layer thermally retractable film for packaging and manufacture of various products, realized through a process of coextrusion, cooling in water and biorientation consisting of at least three layer of which: - the internal layer is formed by at least one copolymer of ethylene and one α-olefin having from 5 to 18 atoms of carbon; the first of the two external layers is formed from a polymeric polyolefin material chosen from among the ethylene-propylene copolymers and ethylene-propylene-butene and their mixtures; the second of the two external layers is formed from a polymeric polyolefin material chosen from among the ethylene-propylene copolymers and ethylene-propylene-butene and their mixtures and one copolymer of ethylene-vinylacetate or ethylene-alkylacrylate. The thermally retractable film according to the invention offers elevated optical characteristics, good weldability, elevated retraction, good resistance to tearing and perforation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT9547A IT1236020B (en) | 1989-10-20 | 1989-10-20 | Polyolefin based, multi-layer, thermally retractable film, for packaging and manufacture of various products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT9547A IT1236020B (en) | 1989-10-20 | 1989-10-20 | Polyolefin based, multi-layer, thermally retractable film, for packaging and manufacture of various products |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8909547A0 IT8909547A0 (en) | 1989-10-20 |
IT8909547A1 IT8909547A1 (en) | 1991-04-20 |
IT1236020B true IT1236020B (en) | 1992-12-21 |
Family
ID=11132012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT9547A IT1236020B (en) | 1989-10-20 | 1989-10-20 | Polyolefin based, multi-layer, thermally retractable film, for packaging and manufacture of various products |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1236020B (en) |
-
1989
- 1989-10-20 IT IT9547A patent/IT1236020B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
IT8909547A1 (en) | 1991-04-20 |
IT8909547A0 (en) | 1989-10-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |