GB761723A - Polymeric films, composition therefor and method of producing the same - Google Patents

Polymeric films, composition therefor and method of producing the same

Info

Publication number
GB761723A
GB761723A GB25902/54A GB2590254A GB761723A GB 761723 A GB761723 A GB 761723A GB 25902/54 A GB25902/54 A GB 25902/54A GB 2590254 A GB2590254 A GB 2590254A GB 761723 A GB761723 A GB 761723A
Authority
GB
United Kingdom
Prior art keywords
composition
polyethylene
density
carbon atoms
producing
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
GB25902/54A
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.)
Visking Corp
Original Assignee
Visking Corp
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 Visking Corp filed Critical Visking Corp
Publication of GB761723A publication Critical patent/GB761723A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group

Abstract

A hot melt-extrudable composition comprising a major proportion of polyethylene of density within a range 0.91 to 0.925 and a minor proportion of a polyethylene of density at least 0.94 and containing not more than small traces of oxygen and carbonyl groups is extruded to form films of high impermeability to water vapour. The high density polyethylene preferably contains in the molecule branch chains with six or more carbon atoms and main chain segments with more than seven carbon atoms between the branch chains, and one tenth of the molecules have terminal unsaturation. The composition may be prepared by compounding the heated components in a mill or mixer and the sheet obtained by blown tube or elongated slot method. It may be coated on sheets of regenerated cellulose, cellulose acetate or ethers, paper, fabric and metals. Pigments, fillers, dyes and plasticizers may also be included in the composition.
GB25902/54A 1953-10-02 1954-09-07 Polymeric films, composition therefor and method of producing the same Expired GB761723A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US761723XA 1953-10-02 1953-10-02

Publications (1)

Publication Number Publication Date
GB761723A true GB761723A (en) 1956-11-21

Family

ID=22130388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25902/54A Expired GB761723A (en) 1953-10-02 1954-09-07 Polymeric films, composition therefor and method of producing the same

Country Status (3)

Country Link
DE (1) DE1025620B (en)
FR (1) FR1108656A (en)
GB (1) GB761723A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088848A (en) * 1961-03-24 1963-05-07 Kendall & Co Pressure-sensitive adhesive tape having a molecularly oriented film backing comprising a blend of high density and low density polyethylenes
US4007298A (en) * 1974-04-26 1977-02-08 United States Pipe And Foundry Company Polyethylene coating for ferrous metals

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154009B (en) * 1958-05-24 1963-09-05 Agfa Ag Plastic containers, such as bottles or the like, for packaging solutions of oxygen-sensitive chemical substances, especially photographic treatment baths in concentrated form
BE585007A (en) * 1958-12-02
BE592753A (en) * 1959-07-09 1900-01-01
NL134337C (en) * 1961-07-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088848A (en) * 1961-03-24 1963-05-07 Kendall & Co Pressure-sensitive adhesive tape having a molecularly oriented film backing comprising a blend of high density and low density polyethylenes
US4007298A (en) * 1974-04-26 1977-02-08 United States Pipe And Foundry Company Polyethylene coating for ferrous metals

Also Published As

Publication number Publication date
DE1025620B (en) 1958-03-06
FR1108656A (en) 1956-01-16

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