JPS6414019A - Heat-shrinkable polypropylene film - Google Patents
Heat-shrinkable polypropylene filmInfo
- Publication number
- JPS6414019A JPS6414019A JP16969687A JP16969687A JPS6414019A JP S6414019 A JPS6414019 A JP S6414019A JP 16969687 A JP16969687 A JP 16969687A JP 16969687 A JP16969687 A JP 16969687A JP S6414019 A JPS6414019 A JP S6414019A
- Authority
- JP
- Japan
- Prior art keywords
- propylene
- film
- ingredient
- ethylene
- stretching
- 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
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE:To obtain a film, superior in low-temperature shrinkage properties, does not generate shrink-back phenomenon at the time of cooling after shrink packaging and has a favorable fine appearance, by combining specific polypropylene resin composition and specific processing conditions. CONSTITUTION:The title film is of a stretched film comprised of by stretching unstretched film to be obtained by melting and extruding a compound of 98-50wt.% propylene copolymer and 2-50wt.% petroleum resin 1.5-7 times in a monoaxial direction at a stretching temperature of 70-110 deg.C and deformation rate of 500%/sec. or more. Then the stretched film is of a thermoshrinkable polypropylene film whose heat-shrinkable factors are respectively 20% or more in a stretching direction and 5% or less and S2/S1>=0.3, S2>=50g/mm<2> in a right angle direction (S1, S2 are residual shrinking stress respectively at 80 deg.C and 25 deg.C after they have been shrinked by 20% freely in the stretching direction at 80 deg.C.). A propylene-ethylene random copolymer or a propylene-ethylene-alpha olefin terpolymer is used as the propylene copolymer. A material having content of a 2-10wt.% ethylene ingredient is used for the former and that having content of a 0-5wt.% ethylene ingredient, 2-30wt.% alpha-olefin ingredient and 98-65wt.% propylene ingredient is used for the latter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16969687A JPS6414019A (en) | 1987-07-09 | 1987-07-09 | Heat-shrinkable polypropylene film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16969687A JPS6414019A (en) | 1987-07-09 | 1987-07-09 | Heat-shrinkable polypropylene film |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6414019A true JPS6414019A (en) | 1989-01-18 |
JPH0523584B2 JPH0523584B2 (en) | 1993-04-05 |
Family
ID=15891192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16969687A Granted JPS6414019A (en) | 1987-07-09 | 1987-07-09 | Heat-shrinkable polypropylene film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6414019A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04112054U (en) * | 1991-03-19 | 1992-09-29 | グンゼ株式会社 | battery packaging |
JP2006082383A (en) * | 2004-09-16 | 2006-03-30 | Mitsubishi Plastics Ind Ltd | Heat-shrinkabie olefin film |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5550064A (en) * | 1978-10-02 | 1980-04-11 | Exxon Research Engineering Co | Aromatic amide plasticizer for ionic polymer |
-
1987
- 1987-07-09 JP JP16969687A patent/JPS6414019A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5550064A (en) * | 1978-10-02 | 1980-04-11 | Exxon Research Engineering Co | Aromatic amide plasticizer for ionic polymer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04112054U (en) * | 1991-03-19 | 1992-09-29 | グンゼ株式会社 | battery packaging |
JP2006082383A (en) * | 2004-09-16 | 2006-03-30 | Mitsubishi Plastics Ind Ltd | Heat-shrinkabie olefin film |
Also Published As
Publication number | Publication date |
---|---|
JPH0523584B2 (en) | 1993-04-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR0173114B1 (en) | Bioriented blown film | |
US3634552A (en) | Polymer blend compositions comprising polypropylene and ethylene/butene copolymer | |
DE3161364D1 (en) | Biaxially stretched polypropylene-based plastic products, and process for making such products | |
AU561437B2 (en) | Butene-1-ethylene copolymer composition | |
JPH10503976A (en) | Uniaxially shrinkable biaxially oriented polyolefin film and method for producing the same | |
CA2172980A1 (en) | Dispersible film | |
TW359640B (en) | Improved composition for uniaxially heat-shrinkable biaxially oriented polypropylene film | |
KR900016357A (en) | Matte stretched molding and preparation method thereof | |
DE3466191D1 (en) | Laminates on the basis of polypropylene and process for preparing such laminates | |
AU746233B2 (en) | Uniaxially shrinkable biaxially oriented polypropylene film and method for use as tobacco pack overwrap | |
JPH0430905B2 (en) | ||
JP3104885B2 (en) | Heat shrinkable laminated film | |
KR880012682A (en) | Polyolefin film | |
JPS6414019A (en) | Heat-shrinkable polypropylene film | |
US4247663A (en) | Heat shrinkable polyvinyl chloride film with methyl methacrylate polymer additive | |
US4264010A (en) | Heat shrinkable polyvinyl chloride film | |
EP0168928A3 (en) | Wrapping film of ethylene copolymers | |
JP2916853B2 (en) | Polyolefin-based heat-shrinkable laminated film | |
JPS55103931A (en) | Production of thermally contractible film | |
GB1287527A (en) | Polyolefine films | |
JPH0826193B2 (en) | Butene-1 Propylene Copolymer Composition Rich in Butene | |
JP3239247B2 (en) | Ethylene-based heat-shrinkable film with small amount of eluted material by n-hexane extraction | |
JPS5651329A (en) | Manufacture of tempered polypropylene film | |
JPS6456546A (en) | Polypropylene heat-shrinkable film | |
JPS5480374A (en) | Production of monoaxially oriented polyolefin film |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |