GB1309012A - Extrusion die - Google Patents
Extrusion dieInfo
- Publication number
- GB1309012A GB1309012A GB996172A GB996170A GB1309012A GB 1309012 A GB1309012 A GB 1309012A GB 996172 A GB996172 A GB 996172A GB 996170 A GB996170 A GB 996170A GB 1309012 A GB1309012 A GB 1309012A
- Authority
- GB
- United Kingdom
- Prior art keywords
- laminar
- layers
- thickness
- sheet
- die
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
-
- 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
-
- 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
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7244—Oxygen barrier
-
- 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
- B32B2327/00—Polyvinylhalogenides
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
1309012 Extruding laminar plastics sheet DOW CHEMICAL CO 26 Feb 1970 [10 March 1969] 9961/72 Divided out of 1309011 Heading B5A The description and claims relate to the die of the parent Specification, wherein the polyolefin layer of greater thickness of the laminar extruded sheet, is divided in its plane into a number of layers subtantially equal in thickness to that of the other material layers, and then recombined into a single layer prior to combination with the other layers within the die; non-uniformity of layer thickness in the edge portions of the laminar sheet thereby being avoided.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80545269A | 1969-03-10 | 1969-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1309012A true GB1309012A (en) | 1973-03-07 |
Family
ID=25191606
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB941370A Expired GB1309011A (en) | 1969-03-10 | 1970-02-26 | Multilayer laminated sheet |
GB996172A Expired GB1309012A (en) | 1969-03-10 | 1970-02-26 | Extrusion die |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB941370A Expired GB1309011A (en) | 1969-03-10 | 1970-02-26 | Multilayer laminated sheet |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE747056A (en) |
DE (2) | DE2007963A1 (en) |
FR (1) | FR2037174B1 (en) |
GB (2) | GB1309011A (en) |
NL (1) | NL7001843A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA974870A (en) * | 1970-09-25 | 1975-09-23 | The Dow Chemical Company | Packaging film and process of preparation |
GB1364176A (en) * | 1971-03-29 | 1974-08-21 | Cosden Oil & Chem Co | Co extrusion of multiple layered sheeting |
NL172931C (en) * | 1972-01-07 | 1983-11-16 | Dow Chemical Co | RIGID MULTIPLE LAYERS COMPRISING AN INNER COATING OF A VINYLIDE CHLORIDE (CO) POLYMER AND OUTER LAYERS OF ANOTHER POLYMER, ALSO CONTAINERS CONTAINED FROM THIS. |
JPS5382888A (en) * | 1976-12-29 | 1978-07-21 | Kureha Chem Ind Co Ltd | Co-extruded five-layered drawn cylindrical film and its manufacture |
DE2734294A1 (en) * | 1977-07-29 | 1979-02-08 | Basf Ag | LAMINATES |
JPS56139544U (en) * | 1980-03-19 | 1981-10-22 | ||
US4551365A (en) * | 1981-10-23 | 1985-11-05 | Composite Container Corporation | Rigid coextruded sheet and container |
FR2545040B1 (en) * | 1983-04-27 | 1985-07-19 | Solvay | MULTI-LAYER THERMOPLASTIC STRUCTURES COMPRISING A VINYLIDENE FLUORIDE POLYMER LAYER LINKED TO AN ALPHA-OLEFIN POLYMER LAYER |
GB2143471B (en) * | 1983-07-18 | 1987-08-12 | Metal Box Plc | Multilayer plastics structures and apparatus and methods for their manufacture |
DE19548169C1 (en) * | 1995-12-22 | 1997-07-24 | Helio Folien Gmbh | Device for producing a coextrusion film and method for producing it |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR495368A (en) * | 1919-01-28 | 1919-10-07 | Vernon Ets | New way of using vegetable waste by drying and mixing |
FR501068A (en) * | 1919-06-25 | 1920-04-01 | Robert Wortmann | Dust separator |
BE651049A (en) * | 1964-07-27 | 1964-11-16 | ||
FR1484153A (en) * | 1965-07-01 | 1967-06-09 | Dow Chemical Co | Wrapping film and method of making this film |
-
0
- DE DE7106429U patent/DE7106429U/en not_active Expired
-
1970
- 1970-02-10 NL NL7001843A patent/NL7001843A/xx unknown
- 1970-02-20 DE DE19702007963 patent/DE2007963A1/en active Pending
- 1970-02-25 FR FR7006713A patent/FR2037174B1/fr not_active Expired
- 1970-02-26 GB GB941370A patent/GB1309011A/en not_active Expired
- 1970-02-26 GB GB996172A patent/GB1309012A/en not_active Expired
- 1970-03-09 BE BE747056D patent/BE747056A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL7001843A (en) | 1970-09-14 |
GB1309011A (en) | 1973-03-07 |
FR2037174A1 (en) | 1970-12-31 |
DE7106429U (en) | 1971-07-01 |
DE2007963A1 (en) | 1970-09-24 |
FR2037174B1 (en) | 1974-03-15 |
BE747056A (en) | 1970-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |