JPS5693527A - Manufacture of polyolefin molded article - Google Patents

Manufacture of polyolefin molded article

Info

Publication number
JPS5693527A
JPS5693527A JP17242579A JP17242579A JPS5693527A JP S5693527 A JPS5693527 A JP S5693527A JP 17242579 A JP17242579 A JP 17242579A JP 17242579 A JP17242579 A JP 17242579A JP S5693527 A JPS5693527 A JP S5693527A
Authority
JP
Japan
Prior art keywords
mold
melted
polyolefin
molded article
end surface
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.)
Granted
Application number
JP17242579A
Other languages
Japanese (ja)
Other versions
JPS6153939B2 (en
Inventor
Masashi Furuide
Kenichi Yamada
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP17242579A priority Critical patent/JPS5693527A/en
Publication of JPS5693527A publication Critical patent/JPS5693527A/en
Publication of JPS6153939B2 publication Critical patent/JPS6153939B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To mold easily the polyolefin molded article excellent in shock resistance, dimentional stability and durability by molding under pressure melted polyolefin whose melt index is below a specified value at a specific temperature.
CONSTITUTION: The melted polyolefin whose melt index is below 2.0 is molded under pressure at the temperature of 180W250°C by using a metal mold whose male and female die ends are closed through sliding. The mold requires closure through sliding of the end surface 15a of the male die 14a and of the end surface 17a of the female die 16a and this operation acts for depriving the material of a space for escape. Therefore, the pressure is applied uniformly to the whole of melted polyolefin or composite thereof, thereby the flow of the melted material is expanded and thus the space inside the mold is filled up sequentially with the material, while a stopper 18 acting also effectively, whereby a prescribed form of the material is finally obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP17242579A 1979-12-27 1979-12-27 Manufacture of polyolefin molded article Granted JPS5693527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17242579A JPS5693527A (en) 1979-12-27 1979-12-27 Manufacture of polyolefin molded article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17242579A JPS5693527A (en) 1979-12-27 1979-12-27 Manufacture of polyolefin molded article

Publications (2)

Publication Number Publication Date
JPS5693527A true JPS5693527A (en) 1981-07-29
JPS6153939B2 JPS6153939B2 (en) 1986-11-20

Family

ID=15941725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17242579A Granted JPS5693527A (en) 1979-12-27 1979-12-27 Manufacture of polyolefin molded article

Country Status (1)

Country Link
JP (1) JPS5693527A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005231108A (en) * 2004-02-18 2005-09-02 Asahi Kasei Chemicals Corp Washing agent for molding machine
JP2006231574A (en) * 2005-02-22 2006-09-07 Kubota Matsushitadenko Exterior Works Ltd Manufacturing method of molded product
JP2018138363A (en) * 2017-02-24 2018-09-06 株式会社栗本鐵工所 Positioning device, apparatus for manufacturing fiber-reinforced resin molded product, and method for charging mold

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50158652A (en) * 1974-06-14 1975-12-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50158652A (en) * 1974-06-14 1975-12-22

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005231108A (en) * 2004-02-18 2005-09-02 Asahi Kasei Chemicals Corp Washing agent for molding machine
JP4504699B2 (en) * 2004-02-18 2010-07-14 旭化成ケミカルズ株式会社 Cleaning agent for molding machine
JP2006231574A (en) * 2005-02-22 2006-09-07 Kubota Matsushitadenko Exterior Works Ltd Manufacturing method of molded product
JP2018138363A (en) * 2017-02-24 2018-09-06 株式会社栗本鐵工所 Positioning device, apparatus for manufacturing fiber-reinforced resin molded product, and method for charging mold

Also Published As

Publication number Publication date
JPS6153939B2 (en) 1986-11-20

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