GB718515A - Process for the production of thin layers of polyethylene on a support - Google Patents

Process for the production of thin layers of polyethylene on a support

Info

Publication number
GB718515A
GB718515A GB2208951A GB2208951A GB718515A GB 718515 A GB718515 A GB 718515A GB 2208951 A GB2208951 A GB 2208951A GB 2208951 A GB2208951 A GB 2208951A GB 718515 A GB718515 A GB 718515A
Authority
GB
United Kingdom
Prior art keywords
polyethylene
gel
solvent
support
coatings
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
GB2208951A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB718515A publication Critical patent/GB718515A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Fine grain polyethylene suitable for forming thin coatings on supports such as paper and textiles is prepared by dissolving the polymer in a liquid above 65 DEG C., cooling the solution to form a solid gel, preferably at a temperature below the freezing point of the solvent, and mechanically comminuting the gel The solvent is then driven off. The addition of less than 1 per cent. silicone oil assists in the production of non-adherent particles. The comminution of the gel may also be effected in a further solvent to form a dispersion, using a temperature not far below the melting point of the gel. Specified solvents are benzine, trichloroethylene and turpentine oil. For coatings on absorbent material, the compositions may include a substance for stopping the pores, e.g. that known under the Registered Trade Mark "Oppanol." Foils may be prepared by applying the powdered polyethylene to a smooth support coated with silicone oil and releasing the layer produced, as, for example, between endless metal bands passing through an oven. Specification 640,177 is referred to.ALSO:Polyethylene coatings are provided on supports, e.g. of paper or textiles, by first dissolving the polyethylene at a temperature above 65 DEG C. in a liquid solvent, cooling the solution to form a solid gel, mechanically comminuting the gel, applying the resulting polyethylene in a thin layer to the support, heating to soften the layer, and flattening the granules. In a modification, the comminution is effected in a further solvent to form a dispersion which is applied to the support. The powder may be applied to a continuously moving band which is passed through an oven and then through rollers, or it may be applied by spraying, casting, painting or dipping, all at room temperature. The solvent is evaporated during the heating to soften the polymer. Substances, such as that sold under the Registered Trade Mark "Oppanol," may be added to the dispersions for use on absorbent surfaces. Specification 640,177, [Group IV(a)], is referred to.
GB2208951A 1950-09-26 1951-09-20 Process for the production of thin layers of polyethylene on a support Expired GB718515A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES19563D DE968877C (en) 1950-09-26 1950-09-26 Process for comminuting solid polyethylene or other high molecular weight substances
DES20920D DE969406C (en) 1950-09-26 1950-11-18 Process for the production of a powder-form plastic from polyethylene

Publications (1)

Publication Number Publication Date
GB718515A true GB718515A (en) 1954-11-17

Family

ID=40524672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2208951A Expired GB718515A (en) 1950-09-26 1951-09-20 Process for the production of thin layers of polyethylene on a support

Country Status (2)

Country Link
DE (2) DE968877C (en)
GB (1) GB718515A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA464489A (en) * 1950-04-18 Traviss Peters Franklin Dispersion of ethylene polymers

Also Published As

Publication number Publication date
DE969406C (en) 1958-05-29
DE968877C (en) 1958-04-03

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