CA2307183A1 - Multilayered metallocene stretch wrap films - Google Patents
Multilayered metallocene stretch wrap films Download PDFInfo
- Publication number
- CA2307183A1 CA2307183A1 CA002307183A CA2307183A CA2307183A1 CA 2307183 A1 CA2307183 A1 CA 2307183A1 CA 002307183 A CA002307183 A CA 002307183A CA 2307183 A CA2307183 A CA 2307183A CA 2307183 A1 CA2307183 A1 CA 2307183A1
- Authority
- CA
- Canada
- Prior art keywords
- layers
- propylene
- layer
- ethylene
- stretch wrap
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/242—All polymers belonging to those covered by group B32B27/32
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/72—Density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
- B32B2323/046—LDPE, i.e. low density polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31928—Ester, halide or nitrile of addition polymer
Abstract
A multilayer, thermoplastic stretch wrap film containing at least four polymeric film layers and comprised of a first outer cling layer (10), a second outer cling layer (10), at least one inner polymeric layer (20) and at least one core layer (30). The first and second layers have a cling force to each other of at least about 140 grams/inch. The stretch wrap film has at least one inner polymeric layer, located between the first and second layers. The inner polymeric layer comprises a low polydispersity polymer. The low polydispersity polymer has a polydispersity of from about 1 to about 4, a melt index (I2) of from about 0.5 to about 10 g/10 min., and a melt flow ratio (I20/I2) of from about 12 to about 22. The core layer, also located between the outer cling layers, comprises either a random copolymer of propylene and ethylene, a heterophasic copolymer of propylene with domains of ethylene interspersed, a polypropylene homopolymer, or blends thereof.
The random ethylene-propylene copolymer has a melt flow ratio of from about 2 to about 15 and an ethylene content in the range of from about 2 to about 6 wt.% of the propylene copolymer. The heterophasic copolymer has a melt flow ratio of about 10 to about 18 and an ethylene content in the range of from about 12 to 30 wt.% of the heterophasic propylene. The polypropylene homopolymer has a melt flow ratio of from about 2 to about 15. The multilayer stretch wrap film has a maximum stretch of at least 340 % and a machine direction stress force @ 200 % elongation of between about 1400 and about 1900 psi. It is contemplated that additional layers may be added to the present invention.
The random ethylene-propylene copolymer has a melt flow ratio of from about 2 to about 15 and an ethylene content in the range of from about 2 to about 6 wt.% of the propylene copolymer. The heterophasic copolymer has a melt flow ratio of about 10 to about 18 and an ethylene content in the range of from about 12 to 30 wt.% of the heterophasic propylene. The polypropylene homopolymer has a melt flow ratio of from about 2 to about 15. The multilayer stretch wrap film has a maximum stretch of at least 340 % and a machine direction stress force @ 200 % elongation of between about 1400 and about 1900 psi. It is contemplated that additional layers may be added to the present invention.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/886,953 US5902684A (en) | 1996-03-12 | 1997-07-02 | Multilayered Metallocene stretch wrap films |
US08/886,953 | 1997-07-02 | ||
PCT/US1998/012221 WO1999001279A1 (en) | 1997-07-02 | 1998-06-11 | Multilayered metallocene stretch wrap films |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2307183A1 true CA2307183A1 (en) | 1999-01-14 |
CA2307183C CA2307183C (en) | 2007-01-23 |
Family
ID=25390138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2307183 Expired - Lifetime CA2307183C (en) | 1997-07-02 | 1998-06-11 | Multilayered metallocene stretch wrap films |
Country Status (4)
Country | Link |
---|---|
US (1) | US5902684A (en) |
AU (1) | AU8068298A (en) |
CA (1) | CA2307183C (en) |
WO (1) | WO1999001279A1 (en) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5998017A (en) * | 1996-03-12 | 1999-12-07 | Tenneco Packaging | Stretch wrap films |
USRE38429E1 (en) * | 1996-03-12 | 2004-02-17 | Tyco Plastics Services Ag | Stretch wrap films |
US6093480A (en) * | 1997-05-21 | 2000-07-25 | Tenneco Packaging | Stretch wrap films |
US6083611A (en) * | 1997-11-12 | 2000-07-04 | Tenneco Packaging, Inc. | Roll wrap film |
US6420022B2 (en) * | 1998-02-02 | 2002-07-16 | Reynolds Consumer Products, Inc. | Differential cling forage wrapping film; wrapped bale; method for producing differential cling film; and method for wrapping forage |
US6299968B1 (en) | 1999-11-20 | 2001-10-09 | Intertape Inc. | General purpose multilayer film products |
US6492010B1 (en) * | 1999-11-20 | 2002-12-10 | Intertape, Inc. | Premium stretch multilayer film products |
US6495245B1 (en) * | 1999-11-20 | 2002-12-17 | Intertape, Inc. | Hand wrap multilayer film products |
US6361875B1 (en) | 1999-11-20 | 2002-03-26 | Intertape, Inc. | Premium hand wrap multi-layer film products |
EP2267043A1 (en) * | 2000-01-26 | 2010-12-29 | Mitsui Chemicals, Inc. | Tapered olefin copolymer of very low polydispersity and process for preparing the same |
US6433088B1 (en) | 2000-08-04 | 2002-08-13 | Equistar Chemicals, Lp | Clear and printable polypropylene films |
US6440533B1 (en) * | 2000-09-22 | 2002-08-27 | Tredegar Film Products Corporation | PVC replacement film |
US6924243B2 (en) * | 2001-05-29 | 2005-08-02 | Owens Corning Fiberglas Technology, Inc. | High performance fire-retardant kraft facing for fiberglass insulation |
EP1472083A4 (en) * | 2002-01-16 | 2007-09-05 | Intertape Polymer Corp | Multi-layered flame retardant wrap |
US6913147B2 (en) | 2002-05-16 | 2005-07-05 | Sealed Air Corporation (Us) | Packaging structure having a frame and film |
US6864195B2 (en) * | 2002-08-15 | 2005-03-08 | Bfs Diversified Products, Llc | Heat weldable roofing membrane |
US7422786B2 (en) * | 2003-09-24 | 2008-09-09 | Exxonmobil Chemical Patents Inc. | Collation shrink |
US20050096613A1 (en) * | 2003-11-04 | 2005-05-05 | Carper James D. | Cling film fastening system for disposable soft goods |
JP5207628B2 (en) * | 2003-12-18 | 2013-06-12 | ダウ グローバル テクノロジーズ エルエルシー | Film with excellent impact resistance and improved sudden fracture resistance at high strain rates |
US7175918B2 (en) * | 2004-04-27 | 2007-02-13 | Equistar Chemicals, Lp | Polyolefin compositions |
US7183005B2 (en) * | 2004-08-20 | 2007-02-27 | Exxonmobil Chemical Patents Inc. | Impact strength improvement of regrind |
US20060147663A1 (en) * | 2004-12-30 | 2006-07-06 | Fina Technology, Inc. | Co-extruded film structures of polypropylene impact copolymer with other polymers |
WO2007130277A1 (en) * | 2006-05-05 | 2007-11-15 | Exxonmobil Chemical Patents Inc. | Linear low density polymer blends and articles made therefrom |
US8247065B2 (en) * | 2006-05-31 | 2012-08-21 | Exxonmobil Chemical Patents Inc. | Linear polymers, polymer blends, and articles made therefrom |
US20090156764A1 (en) * | 2007-12-18 | 2009-06-18 | Malakoff Alan M | Ethylene-Based Polymers and Articles Made Therefrom |
US20090269566A1 (en) * | 2008-04-23 | 2009-10-29 | Berry Plastics Corporation | Pre-stretched multi-layer stretch film |
MY157091A (en) | 2010-04-13 | 2016-04-29 | Univation Tech Llc | Polymer blends and films made therefrom |
EP2606096A1 (en) | 2010-08-18 | 2013-06-26 | Sun Chemical Corporation | Chlorine-free ink and coating compositions&a method for printing on untreated polyolefin films with improved adhesion |
PL223808B1 (en) * | 2012-02-16 | 2016-11-30 | Zakład Produkcji Folii Efekt Plus Spółka Z Ograniczoną | Method for preparing a five-stretch polyolefin film |
ES2752139T3 (en) | 2012-03-05 | 2020-04-03 | Univation Tech Llc | Methods for preparing catalyst compositions and polymeric products produced therefrom |
US9272795B2 (en) | 2012-05-17 | 2016-03-01 | Henkel IP & Holding GmbH | Integral hot melt adhesive packaging films and use thereof |
US9346247B2 (en) * | 2013-05-01 | 2016-05-24 | Paragon Films, Inc. | Stretch films containing random copolymer polypropylene resins in adjacent layers of a nanolayer structure |
EP3126142B1 (en) * | 2014-04-01 | 2020-01-01 | Saudi Basic Industries Corporation | Multilayer film |
WO2017075069A1 (en) | 2015-10-27 | 2017-05-04 | Berry Plastics Corporation | Multi-layer film |
US10603884B2 (en) | 2016-07-07 | 2020-03-31 | Berry Plastics Corporation | Multi-layer film |
US11059614B2 (en) * | 2016-08-29 | 2021-07-13 | Johns Manville | Insulation packaging system |
CA3038149C (en) | 2016-09-27 | 2023-08-22 | Univation Technologies, Llc | Method for long chain branching control in polyethylene production |
CN111417520B (en) * | 2017-12-20 | 2023-01-24 | 陶氏环球技术有限责任公司 | Multilayer cast film and method for producing same |
AR118648A1 (en) * | 2019-04-24 | 2021-10-20 | Dow Global Technologies Llc | IMPROVED TEAR RESISTANCE MULTI-LAYER STRETCH FILM |
EP3999307A4 (en) * | 2019-07-17 | 2023-10-25 | Jindal Films Americas LLC | Heat-stable biaxially oriented polypropylene films |
Family Cites Families (79)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USB632416I5 (en) * | 1956-03-01 | 1976-03-09 | ||
CA849081A (en) * | 1967-03-02 | 1970-08-11 | Du Pont Of Canada Limited | PRODUCTION OF ETHYLENE/.alpha.-OLEFIN COPOLYMERS OF IMPROVED PHYSICAL PROPERTIES |
US3748962A (en) * | 1971-12-16 | 1973-07-31 | Barber Colman Co | Hob shifter |
US4050221A (en) * | 1973-04-04 | 1977-09-27 | Lantech, Inc. | Stretch-wrapped package, process and apparatus |
US3986611A (en) * | 1973-07-06 | 1976-10-19 | Union Carbide Corporation | Cling film overwrap for palletized articles |
ES436796A1 (en) * | 1974-04-22 | 1977-01-01 | Dow Chemical Co | High efficiency titanate catalyst for polymerizing olefins |
US4011382A (en) * | 1975-03-10 | 1977-03-08 | Union Carbide Corporation | Preparation of low and medium density ethylene polymer in fluid bed reactor |
JPS5952643B2 (en) * | 1977-01-27 | 1984-12-20 | 三井化学株式会社 | ethylene copolymer |
US4302565A (en) * | 1978-03-31 | 1981-11-24 | Union Carbide Corporation | Impregnated polymerization catalyst, process for preparing, and use for ethylene copolymerization |
US4302566A (en) * | 1978-03-31 | 1981-11-24 | Union Carbide Corporation | Preparation of ethylene copolymers in fluid bed reactor |
US4399180A (en) * | 1978-09-15 | 1983-08-16 | Mobil Oil Corporation | Coextruded thermoplastic stretch-wrap |
US4359561A (en) * | 1979-06-18 | 1982-11-16 | Union Carbide Corporation | High tear strength polymers |
US4399173A (en) * | 1982-01-04 | 1983-08-16 | Union Carbide Corporation | Multilayer films comprising low pressure, low density polyethylene |
US4418114A (en) * | 1982-04-29 | 1983-11-29 | Mobil Oil Corporation | Coextruded thermoplastic stretch-wrap |
US4461873A (en) * | 1982-06-22 | 1984-07-24 | Phillips Petroleum Company | Ethylene polymer blends |
US4522987A (en) * | 1982-07-09 | 1985-06-11 | Phillips Petroleum Company | Low density polyethylene |
US4588650A (en) * | 1982-09-29 | 1986-05-13 | The Dow Chemical Company | Olefin polymer stretch/cling film |
US4511609A (en) * | 1982-09-30 | 1985-04-16 | Union Carbide Corporation | Multilayer trash bag film |
US4565720A (en) * | 1983-07-27 | 1986-01-21 | Idemitsu Petrochemical Co., Ltd. | Packaging bag |
JPS60105541A (en) * | 1983-11-14 | 1985-06-11 | 出光石油化学株式会社 | Multilayer film |
US4808561A (en) * | 1985-06-21 | 1989-02-28 | Exxon Chemical Patents Inc. | Supported polymerization catalyst |
US5124418A (en) * | 1985-11-15 | 1992-06-23 | Exxon Chemical Patents Inc. | Supported polymerization catalyst |
US5077255A (en) * | 1986-09-09 | 1991-12-31 | Exxon Chemical Patents Inc. | New supported polymerization catalyst |
US5084534A (en) * | 1987-06-04 | 1992-01-28 | Exxon Chemical Patents, Inc. | High pressure, high temperature polymerization of ethylene |
US5617707A (en) * | 1987-04-17 | 1997-04-08 | Mobil Oil Corporation | Stretch wrap film inherently exhibiting a significant cling property |
US5273809A (en) * | 1987-04-17 | 1993-12-28 | Mobil Oil Corporation | Multilayer stretch wrap film inherently exhibiting a significant cling property |
US4833017A (en) * | 1987-04-17 | 1989-05-23 | Mobil Oil Corporation | Particle-impregnated one-sided cling stretch wrap film |
US4871523A (en) * | 1987-05-15 | 1989-10-03 | Exxon Chemical Patents Inc. | Vanadium tetrachloride stabilization |
JPH0777754B2 (en) * | 1987-07-07 | 1995-08-23 | 三井石油化学工業株式会社 | Stretch wrapping film |
JPH06104802B2 (en) * | 1987-10-19 | 1994-12-21 | 大日本インキ化学工業株式会社 | Resin composition for urethane paint |
US5049423A (en) * | 1987-11-19 | 1991-09-17 | Exxon Chemical Patents Inc. | Composite thermoplastic films for use in stretch/cling applications |
US5173343A (en) * | 1987-11-19 | 1992-12-22 | Exxon Chemical Patents Inc. | Narrow molecular weight distribution ethylene-acrylate cling layer in stretch/cling films |
US4925821A (en) * | 1987-12-17 | 1990-05-15 | Exxon Chemical Patents Inc. | Method for utilizing triethyaluminum to prepare an alumoxane support for an active metallocene catalyst |
US4937301A (en) * | 1987-12-17 | 1990-06-26 | Exxon Chemical Patents Inc. | Method for preparing a supported metallocene-alumoxane catalyst for gas phase polymerization |
JP2682628B2 (en) * | 1987-12-28 | 1997-11-26 | バブコツク日立株式会社 | Nitrogen oxide removal method and removal catalyst |
US5001205A (en) * | 1988-06-16 | 1991-03-19 | Exxon Chemical Patents Inc. | Process for production of a high molecular weight ethylene α-olefin elastomer with a metallocene alumoxane catalyst |
US4871705A (en) * | 1988-06-16 | 1989-10-03 | Exxon Chemical Patents Inc. | Process for production of a high molecular weight ethylene a-olefin elastomer with a metallocene alumoxane catalyst |
US5382631A (en) * | 1988-09-30 | 1995-01-17 | Exxon Chemical Patents Inc. | Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distributions |
US5019315A (en) * | 1988-10-25 | 1991-05-28 | Mobil Oil Corporation | Preparing multi-layer coextruded polyolefin stretch wrap films |
US5248547A (en) * | 1988-10-25 | 1993-09-28 | Mobil Oil Corporation | Multi-layer coextruded polyolefin stretch wrap films |
US5006500A (en) * | 1988-10-27 | 1991-04-09 | Exxon Chemical Patents Inc. | Olefin polymerization catalyst from trialkylaluminum mixture, silica gel and a metallocene |
US4904631A (en) * | 1988-11-08 | 1990-02-27 | Exxon Chemical Patents, Inc. | Supported vanadium catalyst for polymerization of olefins and a process of preparing and using the same |
US5026798A (en) * | 1989-09-13 | 1991-06-25 | Exxon Chemical Patents Inc. | Process for producing crystalline poly-α-olefins with a monocyclopentadienyl transition metal catalyst system |
US5085927A (en) * | 1990-04-10 | 1992-02-04 | Paragon Films, Inc. | Stretch film cling enhancement by addition of elastomers |
US5272236A (en) * | 1991-10-15 | 1993-12-21 | The Dow Chemical Company | Elastic substantially linear olefin polymers |
US5079205A (en) * | 1990-07-13 | 1992-01-07 | Exxon Chemical Patents Inc. | Group ivb, vb and vib metal hydrocarbyloxides, with alumoxane for olefin polymerization |
MX9200724A (en) * | 1991-02-22 | 1993-05-01 | Exxon Chemical Patents Inc | HEAT SEALABLE MIX OF POLYETHYLENE OR PLASTOMER OF VERY LOW DENSITY WITH POLYMERS BASED ON POLYPROPYLENE AND THERMAL SEALABLE FILM AS WELL AS ARTICLES MADE WITH THOSE. |
EP0582592A4 (en) * | 1991-03-29 | 1995-02-22 | Bpi Environmental Inc | Polymeric material and clear film produced therefrom. |
US5278272A (en) * | 1991-10-15 | 1994-01-11 | The Dow Chemical Company | Elastic substantialy linear olefin polymers |
US5395471A (en) * | 1991-10-15 | 1995-03-07 | The Dow Chemical Company | High drawdown extrusion process with greater resistance to draw resonance |
US5206075A (en) * | 1991-12-19 | 1993-04-27 | Exxon Chemical Patents Inc. | Sealable polyolefin films containing very low density ethylene copolymers |
US5530065A (en) * | 1992-01-07 | 1996-06-25 | Exxon Chemical Patents Inc. | Heat sealable films and articles made therefrom |
US5451450A (en) * | 1992-02-19 | 1995-09-19 | Exxon Chemical Patents Inc. | Elastic articles and a process for their production |
US5283128A (en) * | 1992-03-23 | 1994-02-01 | Viskase Corporation | Biaxially oriented heat shrinkable film |
US5272016A (en) * | 1992-03-23 | 1993-12-21 | Viskase Corporation | Multilayer stretch/shrink film |
US5279872A (en) * | 1992-03-23 | 1994-01-18 | Viskase Corporation | Multilayer stretch/shrink film |
DE4230869A1 (en) * | 1992-09-16 | 1994-03-17 | Basf Ag | Packaging film consisting of a sealing layer and a carrier layer |
JP3307395B2 (en) * | 1992-09-16 | 2002-07-24 | エクソンモービル・ケミカル・パテンツ・インク | Flexible film with enhanced physical properties |
US5482771A (en) * | 1992-09-18 | 1996-01-09 | W. R. Grace & Co.-Conn. | Moisutre barrier film |
CA2106258C (en) * | 1992-09-18 | 2003-11-04 | Gautam P. Shah | Moisture barrier film |
US5399426A (en) * | 1992-10-19 | 1995-03-21 | The Dow Chemical Company | Polyethylene stretch films |
US5482770A (en) * | 1992-11-03 | 1996-01-09 | W. R. Grace & Co.-Conn. | Highly oriented multilayer film |
US5604043A (en) * | 1993-09-20 | 1997-02-18 | W.R. Grace & Co.-Conn. | Heat shrinkable films containing single site catalyzed copolymers having long chain branching |
US5419934A (en) * | 1992-12-18 | 1995-05-30 | Mobil Oil Corporation | Multilayer coextruded polyolefin stretch wrap films |
US5334428A (en) * | 1992-12-28 | 1994-08-02 | Mobil Oil Corporation | Multilayer coextruded linear low density polyethylene stretch wrap films |
US5420220A (en) * | 1993-03-25 | 1995-05-30 | Mobil Oil Corporation | LLDPE films |
AU673048B2 (en) * | 1992-12-28 | 1996-10-24 | Mobil Oil Corporation | Linear low density polyethylene film |
US5374459A (en) * | 1993-04-06 | 1994-12-20 | W. R. Grace & Co.-Conn. | Packaging material for long-term storage of food products |
US5523136A (en) * | 1993-04-30 | 1996-06-04 | Cypress Packaging | Packaging film, packages and methods for using them |
CA2162565C (en) * | 1993-05-13 | 2006-01-24 | Main Chang | Polymerization catalyst systems, their production and use |
US5397613A (en) * | 1993-07-12 | 1995-03-14 | Viskase Corporation | Puncture resistant heat shrinkable film containing narrow molecular weight ethylene alpha olefin |
US5419795A (en) * | 1993-07-29 | 1995-05-30 | W. R. Grace & Co.-Conn. | High slip packaging film with trapped print |
US5462807A (en) * | 1993-08-20 | 1995-10-31 | Exxon Chemical Patents Inc. | Heat sealable films and articles |
US5407732A (en) * | 1993-10-29 | 1995-04-18 | Mobil Oil Corporation | Multi-layer coextruded polyolefin stretch wrap films |
US5491019A (en) * | 1994-03-28 | 1996-02-13 | W. R. Grace & Co.-Conn. | Oxygen-permeable multilayer film |
US5460861A (en) * | 1994-05-10 | 1995-10-24 | Viskase Corporation | Multilayer stretch/shrink film |
US5558930A (en) * | 1994-06-23 | 1996-09-24 | Tredegar Industries, Inc. | Heat sealable, high moisture barrier film and method of making same |
US5736260A (en) * | 1994-10-06 | 1998-04-07 | Sumitomo Chemical Company, Limited | Multilayer packaging film |
GB9505524D0 (en) * | 1995-03-18 | 1995-05-03 | Mobil Plastics Europ Inc | Product |
-
1997
- 1997-07-02 US US08/886,953 patent/US5902684A/en not_active Expired - Lifetime
-
1998
- 1998-06-11 CA CA 2307183 patent/CA2307183C/en not_active Expired - Lifetime
- 1998-06-11 AU AU80682/98A patent/AU8068298A/en not_active Abandoned
- 1998-06-11 WO PCT/US1998/012221 patent/WO1999001279A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CA2307183C (en) | 2007-01-23 |
WO1999001279A1 (en) | 1999-01-14 |
US5902684A (en) | 1999-05-11 |
AU8068298A (en) | 1999-01-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2307183A1 (en) | Multilayered metallocene stretch wrap films | |
KR960014027B1 (en) | Moisture barrier film | |
US6265055B1 (en) | Multilayer stretch cling film | |
CA2399230A1 (en) | Oriented multilayer polyolefin films | |
US5441802A (en) | Biaxially-oriented multi-layer films | |
CA2041351A1 (en) | High density polyethylene shrink film | |
JP3483576B2 (en) | High modulus film | |
AU8242791A (en) | Blends of polypropylene and ethylene copolymer and films made from the blend | |
CA2106258A1 (en) | Moisture barrier film | |
AU2001231133A1 (en) | Multilayer blown film structure with polypropylene non-sealant layer and polyethylene sealant layer | |
EP1543956A3 (en) | Heat-shrinkable packaging films with improved sealing properties and articles made thereof | |
CA2042648A1 (en) | Breathable abuse resistant film for packaging cheese | |
CA2191587A1 (en) | Retortable, high oxygen barrier polymeric films | |
CA2202647A1 (en) | Retortable, high oxygen barrier polymeric films | |
CA2372954A1 (en) | Multilayer heat-shrinkable sealable films | |
AU5521294A (en) | A multilayer, stretched heat-sealable polypropylene film combining good surface slip with improved barrier properties | |
AU5521394A (en) | A multilayer, stretched heat-sealable polypropylene film | |
IT1292138B1 (en) | EXTENSIBLE MULTILAYER FILM | |
US5332615A (en) | Stretched polyethylene multilayer film | |
JP2008036844A (en) | Multilayered polyolefinic heat-shrinkable film | |
CA2212852A1 (en) | Multilayer thermoshrinkable films | |
JP2007001102A (en) | Heat-shrinkable multilayer polyolefin film | |
EP0885717A3 (en) | Multilayered polyolefin high shrinkage, low shrink force shrink film | |
JPH03288644A (en) | Easy tear film and manufacture thereof | |
JPH0516231A (en) | Heat-shrinkable film |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20180611 |