JPS6456547A - Laminated heat-shrinkable film - Google Patents
Laminated heat-shrinkable filmInfo
- Publication number
- JPS6456547A JPS6456547A JP62214672A JP21467287A JPS6456547A JP S6456547 A JPS6456547 A JP S6456547A JP 62214672 A JP62214672 A JP 62214672A JP 21467287 A JP21467287 A JP 21467287A JP S6456547 A JPS6456547 A JP S6456547A
- Authority
- JP
- Japan
- Prior art keywords
- intermediate layer
- comprised
- whose
- shrinkable film
- alpha
- 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
- 229920006257 Heat-shrinkable film Polymers 0.000 title abstract 2
- 239000004743 Polypropylene Substances 0.000 abstract 2
- 229920001684 low density polyethylene Polymers 0.000 abstract 2
- 239000004702 low-density polyethylene Substances 0.000 abstract 2
- -1 polypropylene Polymers 0.000 abstract 2
- 229920001155 polypropylene Polymers 0.000 abstract 2
- 229920005606 polypropylene copolymer Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000004711 α-olefin Substances 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
Abstract
PURPOSE:To widen an appropriate temperature range for heat shrinking and packaging and improve tear propagation strength, by a method wherein the title film is constituted of both outside layers of specific crystalline polypropylene resin and an intermediate layer comprised respectively of specific straight chain low density polyethylene, and a copolymer of propylene and alpha-olefin. CONSTITUTION:This laminated heat-shrinkable film is constituted so that both the outside layers are comprised of polypropylene resin whose melting point is 135-150 deg.C, the intermediate layer is comprised of a resinous composition wherein straight chain low-density polyethylene whose density is 0.890-0.910g/cm<3> and a Vicat softening point is 60-80 deg.C, and a copolymer of propylene and 2-8C alpha-olefin whose Vicat softening point is 70-110 deg.C are mixed up with each other in a range of 8:2-2:8, and a thickness of the said intermediate layer is 30-80% of the whole thickness.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62214672A JPH0815777B2 (en) | 1987-08-27 | 1987-08-27 | Laminated heat shrinkable film |
| US07/162,451 US4923722A (en) | 1987-03-02 | 1988-03-01 | Heat shrinkable composite film and packaging method using same |
| US07/515,149 US5001016A (en) | 1987-03-02 | 1990-04-26 | Heat shrinkable composite film and packaging method using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62214672A JPH0815777B2 (en) | 1987-08-27 | 1987-08-27 | Laminated heat shrinkable film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6456547A true JPS6456547A (en) | 1989-03-03 |
| JPH0815777B2 JPH0815777B2 (en) | 1996-02-21 |
Family
ID=16659661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62214672A Expired - Fee Related JPH0815777B2 (en) | 1987-03-02 | 1987-08-27 | Laminated heat shrinkable film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0815777B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577372A (en) * | 1991-02-28 | 1993-03-30 | Heisei Polymer Co Ltd | Multilayered stretched tape, fabric for flexible container and processed cloth for producing flexible container |
| JPH05147179A (en) * | 1991-11-28 | 1993-06-15 | Takigawa Kagaku Kogyo Kk | Coextruded multi-layer film |
| WO1996009930A1 (en) * | 1994-09-29 | 1996-04-04 | Kohjin Co., Ltd. | Heat-shrinkable polyolefin laminate film |
| JP2003527983A (en) * | 2000-03-22 | 2003-09-24 | バセル テクノロジー カンパニー ビー．ブイ． | Heat shrinkable sealable multilayer film |
| JP2008149503A (en) * | 2006-12-15 | 2008-07-03 | Sekisui Film Kk | Heat-shrinkable multilayer polyolefin-based resin film |
| JP2009544505A (en) * | 2006-07-31 | 2009-12-17 | ダウ グローバル テクノロジーズ インコーポレイティド | LAMINATED FILM COMPOSITION, PACKAGE PRODUCT MADE FROM THEM, AND USE |
| JP2011116033A (en) * | 2009-12-03 | 2011-06-16 | Kohjin Co Ltd | Polyethylene heat-shrinkable multilayered film for accumulated packaging |
-
1987
- 1987-08-27 JP JP62214672A patent/JPH0815777B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577372A (en) * | 1991-02-28 | 1993-03-30 | Heisei Polymer Co Ltd | Multilayered stretched tape, fabric for flexible container and processed cloth for producing flexible container |
| JPH05147179A (en) * | 1991-11-28 | 1993-06-15 | Takigawa Kagaku Kogyo Kk | Coextruded multi-layer film |
| WO1996009930A1 (en) * | 1994-09-29 | 1996-04-04 | Kohjin Co., Ltd. | Heat-shrinkable polyolefin laminate film |
| JP2003527983A (en) * | 2000-03-22 | 2003-09-24 | バセル テクノロジー カンパニー ビー．ブイ． | Heat shrinkable sealable multilayer film |
| JP2009544505A (en) * | 2006-07-31 | 2009-12-17 | ダウ グローバル テクノロジーズ インコーポレイティド | LAMINATED FILM COMPOSITION, PACKAGE PRODUCT MADE FROM THEM, AND USE |
| JP2008149503A (en) * | 2006-12-15 | 2008-07-03 | Sekisui Film Kk | Heat-shrinkable multilayer polyolefin-based resin film |
| JP2011116033A (en) * | 2009-12-03 | 2011-06-16 | Kohjin Co Ltd | Polyethylene heat-shrinkable multilayered film for accumulated packaging |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0815777B2 (en) | 1996-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |