GB1398853A - Production of polymeric films - Google Patents

Production of polymeric films

Info

Publication number
GB1398853A
GB1398853A GB5329971A GB5329971A GB1398853A GB 1398853 A GB1398853 A GB 1398853A GB 5329971 A GB5329971 A GB 5329971A GB 5329971 A GB5329971 A GB 5329971A GB 1398853 A GB1398853 A GB 1398853A
Authority
GB
United Kingdom
Prior art keywords
polyester
film
followed
region
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.)
Expired
Application number
GB5329971A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB5329971A priority Critical patent/GB1398853A/en
Publication of GB1398853A publication Critical patent/GB1398853A/en
Expired legal-status Critical Current

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
    • 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
    • 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
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B32B2272/00—Resin or rubber layer comprising scrap, waste or recycling material
    • 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
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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
    • B32B2559/00—Photographic equipment or accessories

Abstract

1398853 Polyester films; laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 17 Nov 1972 [17 Nov 1971] 53299/71 Headings B5B and B5N A polymeric film of composite structure comprises at least one region of linear polyester co-extruded with at least one other separate region comprising re-work quality linear polyester, the region of the latter being restricted to a part of the film where its properties do not impair the suitability of the film for its intended end use. Polyethylene terephthalate is the preferred polyester. Rework quality polyester may be confined to edge margins of the film which are then trimmed, yielding a film suitable for coating with a photographic emulsion, or a core layer thereof may be located between surface skins of fresh polyester, which may be coated with a metallic layer or a magnetic coating, or a two-layer laminate may be made, one layer of fresh polyester and the other of rework quality polyester. Examples illustrate the production of polyethylene terephthalate films by melt-extrusion followed by quenching, longitudinal stretching between slow and fast rollers at 80‹ C. to a draw ratio of 3À0: 1, followed by transverse stretching by tentering at 100‹ C. to the same draw ratio, followed by heat-setting at 200‹ C. while shrinkage of the film is restrained.
GB5329971A 1971-11-17 1971-11-17 Production of polymeric films Expired GB1398853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5329971A GB1398853A (en) 1971-11-17 1971-11-17 Production of polymeric films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5329971A GB1398853A (en) 1971-11-17 1971-11-17 Production of polymeric films

Publications (1)

Publication Number Publication Date
GB1398853A true GB1398853A (en) 1975-06-25

Family

ID=10467305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5329971A Expired GB1398853A (en) 1971-11-17 1971-11-17 Production of polymeric films

Country Status (1)

Country Link
GB (1) GB1398853A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010895A1 (en) * 1978-10-23 1980-05-14 Imperial Chemical Industries Plc Method of making laminates of thermoplastic polymers by a single-channel coextrusion process and melt injector block for use therein
GB2117702A (en) * 1982-03-15 1983-10-19 Grace W R & Co Quenched nylon multilayer casings
EP0132316A2 (en) * 1983-07-16 1985-01-30 Mb Group Plc Multi-layer plastics structures and apparatus and methods for their manufacture
EP0528980A1 (en) * 1990-05-18 1993-03-03 E.I. Du Pont De Nemours And Company Multilayer heat shrinkable polymeric film containing recycle polymer
US6569515B2 (en) * 1998-01-13 2003-05-27 3M Innovative Properties Company Multilayered polymer films with recyclable or recycled layers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010895A1 (en) * 1978-10-23 1980-05-14 Imperial Chemical Industries Plc Method of making laminates of thermoplastic polymers by a single-channel coextrusion process and melt injector block for use therein
GB2117702A (en) * 1982-03-15 1983-10-19 Grace W R & Co Quenched nylon multilayer casings
EP0132316A2 (en) * 1983-07-16 1985-01-30 Mb Group Plc Multi-layer plastics structures and apparatus and methods for their manufacture
EP0132316A3 (en) * 1983-07-18 1986-08-13 Metal Box Public Limited Company Multi-layer plastics structures and apparatus and methods for their manufacture
EP0528980A1 (en) * 1990-05-18 1993-03-03 E.I. Du Pont De Nemours And Company Multilayer heat shrinkable polymeric film containing recycle polymer
EP0528980A4 (en) * 1990-05-18 1993-03-17 E.I. Du Pont De Nemours And Company Multilayer heat shrinkable polymeric film containing recycle polymer
US6569515B2 (en) * 1998-01-13 2003-05-27 3M Innovative Properties Company Multilayered polymer films with recyclable or recycled layers

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee