GB581717A - Improvements in or relating to polythene films - Google Patents

Improvements in or relating to polythene films

Info

Publication number
GB581717A
GB581717A GB869045A GB869045A GB581717A GB 581717 A GB581717 A GB 581717A GB 869045 A GB869045 A GB 869045A GB 869045 A GB869045 A GB 869045A GB 581717 A GB581717 A GB 581717A
Authority
GB
United Kingdom
Prior art keywords
chlorine
films
chlorination
polythene
chlorinated
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
GB869045A
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 GB869045A priority Critical patent/GB581717A/en
Publication of GB581717A publication Critical patent/GB581717A/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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
    • 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
    • B29D23/00—Producing tubular articles
    • 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
    • C08J7/12—Chemical modification
    • C08J7/126—Halogenation
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C08L23/32—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur
    • C08L23/34—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds containing phosphorus or sulfur by chlorosulfonation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

Preformed polythene films are subjected on one or both sides to a superficial treatment with chlorine. Films of good heat-sealing properties are obtained by chlorination in the dark or in the presence of a liquid medium preferably such that the film contains 25-100 mgms. of chlorine per 100 sq. cms. surface area. Chlorine saturated with carbon tetrachloride vapour may be used. Chlorination may be carried out in a liquid medium such as water by passing chlorine therethrough. Other liquid media such as trichloracetic acid or carbon tetrachloride at low temperatures may be used. Films of high surface hardness may be produced by chlorination in an illuminated zone in the absence of liquid media. Films produced as above have increased dye affinities and may be printed. In an example, a polythene film is chlorinated for 5 minutes in a slow stream of chlorine while subjected to actinic light radiations. The resulting product may be heat sealed at temperatures below 100 DEG C. In the second example, a polythene film is passed slowly through a chamber filled with chlorine so that it is chlorinated for a period of 15 minutes at 30 DEG C. The product can be sealed at temperatures of 70-90 DEG C. Specifications 474,426 and 481,515 are referred to.
GB869045A 1945-04-09 1945-04-09 Improvements in or relating to polythene films Expired GB581717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB869045A GB581717A (en) 1945-04-09 1945-04-09 Improvements in or relating to polythene films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB869045A GB581717A (en) 1945-04-09 1945-04-09 Improvements in or relating to polythene films

Publications (1)

Publication Number Publication Date
GB581717A true GB581717A (en) 1946-10-22

Family

ID=9857358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB869045A Expired GB581717A (en) 1945-04-09 1945-04-09 Improvements in or relating to polythene films

Country Status (1)

Country Link
GB (1) GB581717A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076940B (en) * 1952-11-29 1960-03-03 Du Pont Process for improving the adhesion properties of films made of polyethylene
DE1117302B (en) * 1953-04-07 1961-11-16 Du Pont Process to improve the printability of polyethylene surfaces
DE1126595B (en) * 1954-06-12 1962-03-29 Kalle Ag Joining of films made of high polymer polymethylene terephthalate
DE976427C (en) * 1954-07-16 1963-08-29 Ruhrchemie Ag Process for the production of polyethylene chlorination products

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076940B (en) * 1952-11-29 1960-03-03 Du Pont Process for improving the adhesion properties of films made of polyethylene
DE1117302B (en) * 1953-04-07 1961-11-16 Du Pont Process to improve the printability of polyethylene surfaces
DE1126595B (en) * 1954-06-12 1962-03-29 Kalle Ag Joining of films made of high polymer polymethylene terephthalate
DE976427C (en) * 1954-07-16 1963-08-29 Ruhrchemie Ag Process for the production of polyethylene chlorination products

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