GB1431899A - Plastics-film containers and packages - Google Patents

Plastics-film containers and packages

Info

Publication number
GB1431899A
GB1431899A GB3715272A GB3715272A GB1431899A GB 1431899 A GB1431899 A GB 1431899A GB 3715272 A GB3715272 A GB 3715272A GB 3715272 A GB3715272 A GB 3715272A GB 1431899 A GB1431899 A GB 1431899A
Authority
GB
United Kingdom
Prior art keywords
mol
ethylene glycol
acid
glycol
per cent
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
GB3715272A
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 GB3715272A priority Critical patent/GB1431899A/en
Publication of GB1431899A publication Critical patent/GB1431899A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2046—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under superatmospheric pressure
    • B65D81/2061—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under superatmospheric pressure in a flexible container
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/052—Forming heat-sealable coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

1431899 Packages IMPERIAL CHEMICAL INDUSTRIES Ltd 26 April 1973 [9 Aug 1972] 37152/72 Heading B8C [Also in Divisions B2 and B5] A plastics film pouch for holding carbonated beverages, is closed except at a filling opening by gas-tight seals in which inner surfaces of the pouch are heat-sealed together, and is formed of biaxially oriented tubular film of polyethylene terephthalate internally coated with a copolyester containing residues of both ethylene glycol and terephthalic acid and residues of a dicarboxylic acid other than terephthalic acid and/or of a glycol other than ethylene glycol, the copolyester being obtainable by reacting a mixture of terephthalic acid and ethylene glycol containing also:- (a) one or more dicarboxylic acids other than terephthalic acid in an amount of from 0 to 25 mol. per cent of total acid present (preferably 10 to 20 mol. per cent); and/or (b) one or more glycols other than ethylene glycol in an amount of from 0 to 50 mol. per cent of total glycol present: provided that, when the amount of said other acid is less than 1 mol. percent of total acid present, an amount of glycol or glycols other than ethylene glycol is present, this amount being at least 10 mol. per cent of the total glycol present. In the preferred method, the copolyester and the polyethylene terephthalate are coextruded in the initial production of the tubular films, which is then biaxially oriented. The wall of the biaxially oriented tubular film may be from 0À00075 to 0À0175 inch thick and the internal coating thereon may be from 0À00004 to 0À0004 inch thick. In the example a copolyester obtained from ethylene glycol and a mixture of terephthalic and isophthalic acids containing 13 mol. per cent of isophthalic acid is used. Pouches so made, may be readily heat-sealed at temperatures of 190‹ to 140‹ C. as in Specification 1,302,450. A package may be made by sealing the filling aperture after filling, as in Specification 1,302,450.
GB3715272A 1972-08-09 1972-08-09 Plastics-film containers and packages Expired GB1431899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3715272A GB1431899A (en) 1972-08-09 1972-08-09 Plastics-film containers and packages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3715272A GB1431899A (en) 1972-08-09 1972-08-09 Plastics-film containers and packages

Publications (1)

Publication Number Publication Date
GB1431899A true GB1431899A (en) 1976-04-14

Family

ID=10394181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3715272A Expired GB1431899A (en) 1972-08-09 1972-08-09 Plastics-film containers and packages

Country Status (1)

Country Link
GB (1) GB1431899A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996019528A1 (en) * 1994-12-19 1996-06-27 Imperial Chemical Industries Plc Polymeric film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996019528A1 (en) * 1994-12-19 1996-06-27 Imperial Chemical Industries Plc Polymeric film

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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