JPS57142323A - Preparation of biaxially oriented synthetic paper - Google Patents

Preparation of biaxially oriented synthetic paper

Info

Publication number
JPS57142323A
JPS57142323A JP56026904A JP2690481A JPS57142323A JP S57142323 A JPS57142323 A JP S57142323A JP 56026904 A JP56026904 A JP 56026904A JP 2690481 A JP2690481 A JP 2690481A JP S57142323 A JPS57142323 A JP S57142323A
Authority
JP
Japan
Prior art keywords
flow index
synthetic paper
high density
density polyethylene
biaxial orientation
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.)
Pending
Application number
JP56026904A
Other languages
Japanese (ja)
Inventor
Yoshiji Ichihara
Katsumi Okuyama
Hiroyasu Mizutani
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.)
Mitsubishi Petrochemical Co Ltd
Original Assignee
Mitsubishi Petrochemical Co 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 Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP56026904A priority Critical patent/JPS57142323A/en
Publication of JPS57142323A publication Critical patent/JPS57142323A/en
Pending 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To obtain a synthetic paper having heat sealability, tear resistance, strength, ridigity and uniform thickness by extruding a composition having specific flow index prepared by compounding an inorg. filler in high density polyethylene from a circular die to be subjected to biaxial orientation. CONSTITUTION:A composition prepared by compounding 10-80wt% inorg. filler in high density polyethylene with density of 0.940g/cm<2> or more and having flow index (n) calculated from melt viscosity curve measured at extrusion temp. shown by a formula 2<=n<=2.8 is extruded from a circular die to obtain an unoriented tubular film and the resulting unoriented tubular film is subjected to biaxial orientation at low magnification while the tubular form is held. MFR according to JIS K6760 of the high density polyethylene to be used is pref. 0.1g/10min or less and the value of the aforementioned flow index (n) is pref. 2.2 or more. When MFR is higher than 0.1g/cm or the flow index (n) is lower than 2.2, the biaxial orientation property at low magnification is lowered and a synthetic paper having uniform thickness is not obtained.
JP56026904A 1981-02-27 1981-02-27 Preparation of biaxially oriented synthetic paper Pending JPS57142323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56026904A JPS57142323A (en) 1981-02-27 1981-02-27 Preparation of biaxially oriented synthetic paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56026904A JPS57142323A (en) 1981-02-27 1981-02-27 Preparation of biaxially oriented synthetic paper

Publications (1)

Publication Number Publication Date
JPS57142323A true JPS57142323A (en) 1982-09-03

Family

ID=12206211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56026904A Pending JPS57142323A (en) 1981-02-27 1981-02-27 Preparation of biaxially oriented synthetic paper

Country Status (1)

Country Link
JP (1) JPS57142323A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713068A (en) * 1986-10-31 1987-12-15 Kimberly-Clark Corporation Breathable clothlike barrier having controlled structure defensive composite
US4713069A (en) * 1986-10-31 1987-12-15 Kimberly-Clark Corporation Baffle having zoned water vapor permeability
US4758239A (en) * 1986-10-31 1988-07-19 Kimberly-Clark Corporation Breathable barrier
JP2016041486A (en) * 2014-08-18 2016-03-31 志弘 林 Non-slip synthetic paper and method for producing the non-slip synthetic paper

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5591631A (en) * 1978-12-29 1980-07-11 Tokuyama Soda Co Ltd Manufacture of thermoplastic resin tubular biaxial stretching sheet or film containing inorganic filler

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5591631A (en) * 1978-12-29 1980-07-11 Tokuyama Soda Co Ltd Manufacture of thermoplastic resin tubular biaxial stretching sheet or film containing inorganic filler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713068A (en) * 1986-10-31 1987-12-15 Kimberly-Clark Corporation Breathable clothlike barrier having controlled structure defensive composite
US4713069A (en) * 1986-10-31 1987-12-15 Kimberly-Clark Corporation Baffle having zoned water vapor permeability
US4758239A (en) * 1986-10-31 1988-07-19 Kimberly-Clark Corporation Breathable barrier
JP2016041486A (en) * 2014-08-18 2016-03-31 志弘 林 Non-slip synthetic paper and method for producing the non-slip synthetic paper

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