WO2009051035A1 - Pre-expanded polypropylene resin particle, and in-mold expansion-molded article produced from the pre-expanded particle - Google Patents

Pre-expanded polypropylene resin particle, and in-mold expansion-molded article produced from the pre-expanded particle Download PDF

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Publication number
WO2009051035A1
WO2009051035A1 PCT/JP2008/068210 JP2008068210W WO2009051035A1 WO 2009051035 A1 WO2009051035 A1 WO 2009051035A1 JP 2008068210 W JP2008068210 W JP 2008068210W WO 2009051035 A1 WO2009051035 A1 WO 2009051035A1
Authority
WO
WIPO (PCT)
Prior art keywords
expanded
polypropylene resin
molded article
resin particle
particle
Prior art date
Application number
PCT/JP2008/068210
Other languages
French (fr)
Japanese (ja)
Inventor
Tetsuya Shibata
Shintaro Miura
Original Assignee
Kaneka Corporation
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 Kaneka Corporation filed Critical Kaneka Corporation
Priority to JP2009538056A priority Critical patent/JP5587605B2/en
Publication of WO2009051035A1 publication Critical patent/WO2009051035A1/en

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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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Disclosed is a method for producing a pre-expanded polyolefin resin particle for in-mold expansion molding, which, when it is desired to produce an in-mold expansion-molded article having a thin shape, enables to achieve good surface performance and good dimensional stability of the in-mold expansion-molded article readily under a wide range of molding condition. Specifically disclosed is a pre-expanded polypropylene resin particle which comprises a polypropylene resin having a melt index of 3 to 20 g/10 min inclusive as a base resin, and which has an expansion ratio of 10 to 40 times inclusive. The pre-expanded polypropylene resin particle has two melting points as measured by differential scanning carorimetry, wherein the higher melting point is 150˚C or higher and the lower melting point is lower than 138˚C.
PCT/JP2008/068210 2007-10-16 2008-10-07 Pre-expanded polypropylene resin particle, and in-mold expansion-molded article produced from the pre-expanded particle WO2009051035A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009538056A JP5587605B2 (en) 2007-10-16 2008-10-07 Polypropylene resin pre-expanded particles and in-mold foam-molded product obtained from the pre-expanded particles

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2007-268717 2007-10-16
JP2007268717 2007-10-16
JP2008008035 2008-01-17
JP2008-008035 2008-03-31
JP2008112301 2008-04-23
JP2008-112301 2008-04-23

Publications (1)

Publication Number Publication Date
WO2009051035A1 true WO2009051035A1 (en) 2009-04-23

Family

ID=40567304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068210 WO2009051035A1 (en) 2007-10-16 2008-10-07 Pre-expanded polypropylene resin particle, and in-mold expansion-molded article produced from the pre-expanded particle

Country Status (2)

Country Link
JP (1) JP5587605B2 (en)
WO (1) WO2009051035A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8889750B2 (en) 2011-02-02 2014-11-18 Kaneka Corporation Expanded polypropylene resin particles, and polypropylene resin in-mold-expanded molding
WO2016098698A1 (en) * 2014-12-17 2016-06-23 株式会社カネカ Polypropylene resin foamed particles
WO2016147775A1 (en) * 2015-03-13 2016-09-22 株式会社カネカ Polyethylene resin foam particles having antistatic performance, and polyethylene resin in-mold foam-molded article and method for manufacturing same
US10017619B2 (en) 2015-03-13 2018-07-10 Kaneka Corporation Polypropylene resin foamed particles and method for producing same
US10221292B2 (en) 2014-10-15 2019-03-05 Kaneka Corporation Polypropylene resin foamed particles, in-mold foam molded body of polypropylene resin, and method for manufacturing same
WO2019220994A1 (en) 2018-05-15 2019-11-21 株式会社カネカ Polypropylene resin foam particles, polypropylene resin in-mold foam molded body, and method for producing polypropylene resin foam particles
WO2021100645A1 (en) 2019-11-21 2021-05-27 株式会社カネカ Polypropylene resin foam particles, method for producing same, and polypropylene resin foam molded article

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996013543A1 (en) * 1994-10-31 1996-05-09 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Prefoamed particles of polypropylene resin and process for producing the same
JPH08183873A (en) * 1994-12-28 1996-07-16 Kanegafuchi Chem Ind Co Ltd Pre-expanded polypropylene resin partile and its production
JPH10251437A (en) * 1997-03-10 1998-09-22 Jsp Corp Molded item of foamed polypropylene resin particle
JP2006096805A (en) * 2004-09-28 2006-04-13 Kaneka Corp Polypropylene base resin prefoamed particle and in-mold foamed product
WO2006054727A1 (en) * 2004-11-22 2006-05-26 Kaneka Corporation Pre-expanded polypropylene resin particle and molded object obtained by in-mold expansion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996013543A1 (en) * 1994-10-31 1996-05-09 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Prefoamed particles of polypropylene resin and process for producing the same
JPH08183873A (en) * 1994-12-28 1996-07-16 Kanegafuchi Chem Ind Co Ltd Pre-expanded polypropylene resin partile and its production
JPH10251437A (en) * 1997-03-10 1998-09-22 Jsp Corp Molded item of foamed polypropylene resin particle
JP2006096805A (en) * 2004-09-28 2006-04-13 Kaneka Corp Polypropylene base resin prefoamed particle and in-mold foamed product
WO2006054727A1 (en) * 2004-11-22 2006-05-26 Kaneka Corporation Pre-expanded polypropylene resin particle and molded object obtained by in-mold expansion

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8889750B2 (en) 2011-02-02 2014-11-18 Kaneka Corporation Expanded polypropylene resin particles, and polypropylene resin in-mold-expanded molding
US10221292B2 (en) 2014-10-15 2019-03-05 Kaneka Corporation Polypropylene resin foamed particles, in-mold foam molded body of polypropylene resin, and method for manufacturing same
WO2016098698A1 (en) * 2014-12-17 2016-06-23 株式会社カネカ Polypropylene resin foamed particles
WO2016147775A1 (en) * 2015-03-13 2016-09-22 株式会社カネカ Polyethylene resin foam particles having antistatic performance, and polyethylene resin in-mold foam-molded article and method for manufacturing same
JPWO2016147775A1 (en) * 2015-03-13 2017-12-28 株式会社カネカ Polyethylene resin foam particles having antistatic performance, polyethylene resin in-mold foam molding and method for producing the same
US10017619B2 (en) 2015-03-13 2018-07-10 Kaneka Corporation Polypropylene resin foamed particles and method for producing same
WO2019220994A1 (en) 2018-05-15 2019-11-21 株式会社カネカ Polypropylene resin foam particles, polypropylene resin in-mold foam molded body, and method for producing polypropylene resin foam particles
WO2021100645A1 (en) 2019-11-21 2021-05-27 株式会社カネカ Polypropylene resin foam particles, method for producing same, and polypropylene resin foam molded article

Also Published As

Publication number Publication date
JPWO2009051035A1 (en) 2011-03-03
JP5587605B2 (en) 2014-09-10

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