GB474426A - Improvements in or relating to films and their manufacture - Google Patents

Improvements in or relating to films and their manufacture

Info

Publication number
GB474426A
GB474426A GB1220236A GB1220236A GB474426A GB 474426 A GB474426 A GB 474426A GB 1220236 A GB1220236 A GB 1220236A GB 1220236 A GB1220236 A GB 1220236A GB 474426 A GB474426 A GB 474426A
Authority
GB
United Kingdom
Prior art keywords
polymer
films
softening temperature
temperature
temperature above
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
GB1220236A
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 GB1220236A priority Critical patent/GB474426A/en
Publication of GB474426A publication Critical patent/GB474426A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
    • C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D123/04—Homopolymers or copolymers of ethene
    • C09D123/06—Polyethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

Solid ethylene polymer (which may contain a small amount of oxygen) is shaped at a temperature above its softening temperature, i.e. above about 110 DEG C., solidified by cooling and rolled or cut into one or more thin strips or sheets. The polymer, which may be prepared according to the process described in Specification 471,590, may be shaped by extrusion, or by passing it through a pair of rollers, of which one is kept at a temperature above the softening temperature and the other is kept cold. According to another method, the polymer is applied as a powder or as a solution to the surface of a solid or a heavy liquid, e.g. mercury, and is heated to a temperature above the softening temperature, where necessary after evaporation of the solvent, so as to produce a continuous film. The polymer employed preferably has a molecular weight of 4000 or 6000 or more. The strength of the films may be increased by subjecting them to cold rolling, e.g. so as to reduce the thickness of the material to about one-fifth. According to the Provisional Specification, the properties of the films may be modified by incorporating polystyrenes.
GB1220236A 1936-04-29 1936-04-29 Improvements in or relating to films and their manufacture Expired GB474426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1220236A GB474426A (en) 1936-04-29 1936-04-29 Improvements in or relating to films and their manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1220236A GB474426A (en) 1936-04-29 1936-04-29 Improvements in or relating to films and their manufacture

Publications (1)

Publication Number Publication Date
GB474426A true GB474426A (en) 1937-10-29

Family

ID=10000207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1220236A Expired GB474426A (en) 1936-04-29 1936-04-29 Improvements in or relating to films and their manufacture

Country Status (1)

Country Link
GB (1) GB474426A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946357C (en) * 1951-10-06 1956-08-02 Fritz Mueller Coroplas K G Weatherproof insulated electrical cable
DE959327C (en) * 1938-05-03 1957-03-07 Ici Ltd Plastic mass made of polyethylene
AT403123B (en) * 1990-01-19 1997-11-25 Yamaha Corp METHOD FOR PRODUCING A SKI TREAD COVER
EP1191571A2 (en) * 2000-09-22 2002-03-27 Matsushita Electric Industrial Co., Ltd. Mercury-containing material, method for producing the same and fluorescent lamp using the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959327C (en) * 1938-05-03 1957-03-07 Ici Ltd Plastic mass made of polyethylene
DE946357C (en) * 1951-10-06 1956-08-02 Fritz Mueller Coroplas K G Weatherproof insulated electrical cable
AT403123B (en) * 1990-01-19 1997-11-25 Yamaha Corp METHOD FOR PRODUCING A SKI TREAD COVER
EP1191571A2 (en) * 2000-09-22 2002-03-27 Matsushita Electric Industrial Co., Ltd. Mercury-containing material, method for producing the same and fluorescent lamp using the same
EP1191571A3 (en) * 2000-09-22 2005-08-03 Matsushita Electric Industrial Co., Ltd. Mercury-containing material, method for producing the same and fluorescent lamp using the same

Similar Documents

Publication Publication Date Title
GB599803A (en) An improved manufacture of copolymers of aliphatic hydrocarbons
GB1069450A (en) Process for the manufacture of polypropylene films
GB448132A (en) Improvements in or relating to the manufacture of goods of or containing sponge-likeor cellular rubber or the like
JP2019509591A (en) Method for preparing lithium ion battery separator
GB474426A (en) Improvements in or relating to films and their manufacture
CN107059033A (en) A kind of oil removing process for improving medicinal aluminum foil moistened surface tension force
CN109278389B (en) Coating-free biaxially oriented polypropylene cold seal base film and preparation method thereof
US2230000A (en) Polyvinyl chloride composition and sheets
US2238730A (en) Manufacture of sheets or films of artificial material
DE629019C (en) Process for the production of hollow bodies
US2271372A (en) Method of treating strip metal
AT158273B (en) Process for the production of films, coatings, tapes, strips or the like.
US3365348A (en) Film laminating method
SU526517A1 (en) The method of obtaining transparent products from crystallizing polymers
US2290861A (en) Cellulose ethers plasticized with ethers of cashew nut shell liquid
US671228A (en) Process of making glutinous compounds.
US1427690A (en) Process for the manufacture of molded articles from cellulose ethers
GB479721A (en) Process of coating metal with a plastic composition
US2203596A (en) Process for the manufacture of transparent foils, films, and threads of cellulose formate
DE1134503B (en) Process for the production of multilayer polyester films
US2032687A (en) Method of preparing dry pectin
GB601715A (en) The coating of sheet materials
GB919261A (en) Self-supporting films or adherent coatings, process for making same, and electrical capacitors made therewith
GB474244A (en) Improvements in or relating to the production of plastic materials in sheet form
DE1133544B (en) Use of polyethylene oxides as lubricants in the production of plasticizer-free rolled films from polymers and copolymers of vinyl chloride