SE0003400L - Mineral-filled film with whitish appearance and ways of making it - Google Patents

Mineral-filled film with whitish appearance and ways of making it

Info

Publication number
SE0003400L
SE0003400L SE0003400A SE0003400A SE0003400L SE 0003400 L SE0003400 L SE 0003400L SE 0003400 A SE0003400 A SE 0003400A SE 0003400 A SE0003400 A SE 0003400A SE 0003400 L SE0003400 L SE 0003400L
Authority
SE
Sweden
Prior art keywords
mineral
film
cracks
polyolefin
micro
Prior art date
Application number
SE0003400A
Other languages
Swedish (sv)
Other versions
SE0003400D0 (en
SE526615C2 (en
Inventor
Hans Johansson
Original Assignee
Tetra Laval Holdings & Finance
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 Tetra Laval Holdings & Finance filed Critical Tetra Laval Holdings & Finance
Priority to SE0003400A priority Critical patent/SE526615C2/en
Publication of SE0003400D0 publication Critical patent/SE0003400D0/en
Publication of SE0003400L publication Critical patent/SE0003400L/en
Publication of SE526615C2 publication Critical patent/SE526615C2/en

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
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A mixture of polyolefin material (11) and mineral particles (12) is extruded and the solidified film (10) is subjected to mechanical deformation or extension to form micro-cracks which are concentrated mainly in the regions between the inorganic particles and polyolefin material. - A method for preparing a white film comprising a mineral-filled polyolefin comprises mixing polyolefin granules with inorganic mineral particles, extruding the molten polymer material, allowing the material to solidify and subjecting the solidified film to a controlled mechanical deformation or extension in order to form local micro-cracks in the film. The deformation or extension step is carried out under conditions that ensure the micro-cracks are concentrated mainly in the regions between the inorganic particles and polyolefin material. - An INDEPENDENT CLAIM is also included for a mineral-filled film containing micro-cracks concentrated in the region between the inorganic particles and film base material.
SE0003400A 2000-09-22 2000-09-22 Preparation of mineral filled white polyolefin film for e.g. packaging, includes deformation or extension to form micro cracks in between mineral particles and polyolefin material SE526615C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0003400A SE526615C2 (en) 2000-09-22 2000-09-22 Preparation of mineral filled white polyolefin film for e.g. packaging, includes deformation or extension to form micro cracks in between mineral particles and polyolefin material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0003400A SE526615C2 (en) 2000-09-22 2000-09-22 Preparation of mineral filled white polyolefin film for e.g. packaging, includes deformation or extension to form micro cracks in between mineral particles and polyolefin material

Publications (3)

Publication Number Publication Date
SE0003400D0 SE0003400D0 (en) 2000-09-22
SE0003400L true SE0003400L (en) 2002-03-23
SE526615C2 SE526615C2 (en) 2005-10-18

Family

ID=20281130

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0003400A SE526615C2 (en) 2000-09-22 2000-09-22 Preparation of mineral filled white polyolefin film for e.g. packaging, includes deformation or extension to form micro cracks in between mineral particles and polyolefin material

Country Status (1)

Country Link
SE (1) SE526615C2 (en)

Also Published As

Publication number Publication date
SE0003400D0 (en) 2000-09-22
SE526615C2 (en) 2005-10-18

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Legal Events

Date Code Title Description
NUG Patent has lapsed