GB919412A - Polyolefin films - Google Patents

Polyolefin films

Info

Publication number
GB919412A
GB919412A GB33174/60A GB3317460A GB919412A GB 919412 A GB919412 A GB 919412A GB 33174/60 A GB33174/60 A GB 33174/60A GB 3317460 A GB3317460 A GB 3317460A GB 919412 A GB919412 A GB 919412A
Authority
GB
United Kingdom
Prior art keywords
heat
film
nylon
crystallizable
additives
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
GB33174/60A
Inventor
Roy Hamer Birtles
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 GB33174/60A priority Critical patent/GB919412A/en
Publication of GB919412A publication Critical patent/GB919412A/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
    • 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
    • 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
    • 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
    • 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
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening 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
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/08—Heat treatment
    • 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
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • 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
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2427/16—Homopolymers or copolymers of vinylidene fluoride

Abstract

A film of a linear crystallizable polymer of an a -olefine having at least 3 carbon atoms, having no substantial degree of molecular orientation, is heat set at a temperature below its melting point. Preferably the a -olefin has 3-6 carbon atoms. Polypropylene may be heat-set at 100 DEG -170 DEG C., especially 150 DEG -170 DEG C. The non-oriented film may be made by melt-extrusion and quenching. To reduce haze in the heat-set film, the composition used to make the film may comprise from 0,01-5%, preferably 0,1-1%, of a crystallizable additive having a melting point above that of the polyolefin and a cohesion energy per chain unit not more than 1,000 cals./mole different from that of the olefin polymer. Such crystallizable additives include polyamides, e.g. nylon-11, nylon 6-10 and nylon 6-6, isotactic poly-3-methyl butene-1, and polytetrafluoroethylene. Other additives which may also be present include high melting waxes, slip agents, e.g. oleamide, antistatic agents, e.g. 1-(hydroxyethyl)-2-n-alkyl glyoxalidines, antioxidants, dyes, pigments, lubricants and ultra-violet light stabilizers. The heat-set film may also be coated with a heat-seal coating, preferably after oxidative treatment of the film to improve the bonding properties of its surface, e.g. by corona discharge, ultraviolet, X- or Y-irradiation, flame treatment, or oxidation with nitric or chromic acid. The coatings may be applied as solutions in organic solvents or as aqueous dispersions which are dried at temperatures of 100 DEG -150 DEG C. Specified heat-seal coatings include vinylidene chloride/acrylonitrile copolymers which may contain other monomers, e.g. itaconic acid. Slip agents, e.g. calcium carbonate, magnesium carbonate, polyvinyl chloride, polypropylene or high melting waxes, e.g. hydrogenated castor oil, stearamide, hydroxy-stearamide and ester type waxes may be incorporated into or applied on to the films themselves or into or on to the heat seal coatings. Crystallizabl additives, e.g. the substituted glyoxalidines mentioned above may be incorporated in the coating compositions. Films so treated have a high degree of dimensional stability. Specifications 715,914, 802,975, 822,498 and 903,661 are referred to.
GB33174/60A 1960-09-27 1960-09-27 Polyolefin films Expired GB919412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB33174/60A GB919412A (en) 1960-09-27 1960-09-27 Polyolefin films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33174/60A GB919412A (en) 1960-09-27 1960-09-27 Polyolefin films

Publications (1)

Publication Number Publication Date
GB919412A true GB919412A (en) 1963-02-27

Family

ID=10349517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33174/60A Expired GB919412A (en) 1960-09-27 1960-09-27 Polyolefin films

Country Status (1)

Country Link
GB (1) GB919412A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2630817A1 (en) * 1976-07-08 1978-01-12 Alkor Gmbh Non-curling laminar body, esp. transparent casing - from unstretched tempered polypropylene film with welded seam
DE3408613A1 (en) * 1984-03-09 1985-09-12 Alkor GmbH Kunststoffe, 8000 München Process and device for producing unstretched, polypropylene-containing polymer films with improved weldability
CN102745808A (en) * 2012-07-20 2012-10-24 江苏通用环保集团有限公司 Preparation method for high-strength pin needle type three-dimensional filler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2630817A1 (en) * 1976-07-08 1978-01-12 Alkor Gmbh Non-curling laminar body, esp. transparent casing - from unstretched tempered polypropylene film with welded seam
DE3408613A1 (en) * 1984-03-09 1985-09-12 Alkor GmbH Kunststoffe, 8000 München Process and device for producing unstretched, polypropylene-containing polymer films with improved weldability
CN102745808A (en) * 2012-07-20 2012-10-24 江苏通用环保集团有限公司 Preparation method for high-strength pin needle type three-dimensional filler
CN102745808B (en) * 2012-07-20 2013-09-04 江苏通用环境工程有限公司 Preparation method for high-strength pin needle type three-dimensional filler

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