CA2010927A1 - Multi-layer heat sealable polypropylene films - Google Patents
Multi-layer heat sealable polypropylene filmsInfo
- Publication number
- CA2010927A1 CA2010927A1 CA2010927A CA2010927A CA2010927A1 CA 2010927 A1 CA2010927 A1 CA 2010927A1 CA 2010927 A CA2010927 A CA 2010927A CA 2010927 A CA2010927 A CA 2010927A CA 2010927 A1 CA2010927 A1 CA 2010927A1
- Authority
- CA
- Canada
- Prior art keywords
- layer
- consisting essentially
- heat sealable
- polymer composition
- outer layer
- 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
Abstract
A heat-sealable multi-layer film structure charactised by consisting essentially of: (i) an outer heat sealable layer (A), a core layer (B), and an outer layer (C), the outer heat sealable layer (A) being coextensively adherent to the upper surface of the core layer (B), and the outer layer (C) being coextensively adherent to the lower surface of the core layer (B), said outer layer (A) being formed from a polymer composition (a) consisting essentially of heat sealable resin compounded with one or more slip additives which are incompatible with polypropylene, (ii) said core layer (B) being derived from a polymer composition (b) consisting essentially of an isotactic polypropylene homopolymer compounded with one or more slip additives which are incompatible with polypropylene, and (iii) said outer layer (c) being formed from a polymer composition consisting essentially of isotactic polypropylene homopolymer in the substantial absence of slip additives; wherein the total amount of slip additive in said film structure is effective to provide the outer surface of outer layer (A) with a coefficient of friction sufficient for high speed heat sealing packaging operations but insufficient to cause substantial hazing of said structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002010927A CA2010927C (en) | 1988-12-27 | 1990-02-26 | Multi-layer heat sealable polypropylene films |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/290,131 US4956232A (en) | 1988-12-27 | 1988-12-27 | Multi-layer heat-sealable polypropylene films |
| CA002010927A CA2010927C (en) | 1988-12-27 | 1990-02-26 | Multi-layer heat sealable polypropylene films |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2010927A1 true CA2010927A1 (en) | 1991-08-26 |
| CA2010927C CA2010927C (en) | 2001-01-16 |
Family
ID=25673978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002010927A Expired - Fee Related CA2010927C (en) | 1988-12-27 | 1990-02-26 | Multi-layer heat sealable polypropylene films |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2010927C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2508624B (en) * | 2012-12-05 | 2015-05-06 | Innovia Films Ltd | Package |
-
1990
- 1990-02-26 CA CA002010927A patent/CA2010927C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2010927C (en) | 2001-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GR3027791T3 (en) | Multi-layer heat-sealable polypropylene films | |
| US5160767A (en) | Peelable packaging and sheet materials and compositions for use therein | |
| AU536579B2 (en) | Multilayer polyolefin laminates | |
| EP0251770A3 (en) | Multilayer film with good layer adhesion | |
| KR0185989B1 (en) | Polymer blends for packaging films | |
| GB1495776A (en) | Film-forming olefin polymer compositions | |
| AU2003212938A1 (en) | Polyolefin oil resistant film using high isotactic content polypropylene | |
| KR830009935A (en) | Sealable Multilayer Film | |
| AU573003B2 (en) | Multi-layer polyolefin shrink film | |
| CA2005968A1 (en) | Heat-laminatable, gas-barrier multi-layer films | |
| CA2312392A1 (en) | Multilayer structure and process for producing the same | |
| WO2000063010A3 (en) | Polypropylene multi-layer sealant films for retort packaging | |
| GB1247114A (en) | Laminated plastics containers | |
| US4339493A (en) | Heat sealable packaging film comprising propylene polymer substrate and olefin surface layer blend of polybutene-1 and an ethylene or a propylene copolymer | |
| US4339495A (en) | Heat sealable packaging film comprising propylene polymer substrate and olefin surface layer blend of polybutene-1 and ethylene or a propylene copolymer | |
| FR2503101B1 (en) | ||
| CA2010927A1 (en) | Multi-layer heat sealable polypropylene films | |
| EP0353655A3 (en) | Resin laminates | |
| ES474415A1 (en) | Polyolefin films with a high resistance to sticking against welding bars having a top coating comprising a combination of an epoxy resin, an acrylic resin and nitrocellulose | |
| EP1142703A4 (en) | Laminate and method for producing the same | |
| JP2747290B2 (en) | Packaging materials for long-term storage of preservative foods | |
| NZ516464A (en) | Polymeric film structures useful as shrink bags | |
| JPH0234032Y2 (en) | ||
| JPH0411788Y2 (en) | ||
| JPS6420136A (en) | Cold high-orientation composite film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |