JPS62180541A - Stamper for injection molding - Google Patents

Stamper for injection molding

Info

Publication number
JPS62180541A
JPS62180541A JP2138786A JP2138786A JPS62180541A JP S62180541 A JPS62180541 A JP S62180541A JP 2138786 A JP2138786 A JP 2138786A JP 2138786 A JP2138786 A JP 2138786A JP S62180541 A JPS62180541 A JP S62180541A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
stamper
conductivity
surface
heat
resin
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
JP2138786A
Inventor
Yasuto Nose
Original Assignee
Seiko Epson Corp
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/263Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C45/2632Stampers; Mountings thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/263Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C45/2632Stampers; Mountings thereof
    • B29C2045/2634Stampers; Mountings thereof mounting layers between stamper and mould or on the rear surface of the stamper
    • B29C2045/2636Stampers; Mountings thereof mounting layers between stamper and mould or on the rear surface of the stamper insulating layers

Abstract

PURPOSE: To improve the transferability of bit group in a forming substrate by coating a substance having low heat conductivity on the rear surface of a stamper for injection molding.
CONSTITUTION: The substance having low heat conductivity, less than 7×10-2cal/ cm.secW°C, is coated on the rear surface of a stamper to lower heat conductivity between the stamper and a mold. When heated molten resin is injected on the face of the stamper heat conductivity from the stamper to the mold becomes low. Thereby, the speed of cooling of the molten resin becomes low. Especially, in the case of continuous molding, the surface temperature of the stamper is made higher than the temperature of the die by contact with heated molten resin, and the time of flowing of the resin on the surface of the stamper becomes longer. Thus, the improvement of transferability and stabilization of production become possible.
COPYRIGHT: (C)1987,JPO&Japio
JP2138786A 1986-02-03 1986-02-03 Stamper for injection molding Pending JPS62180541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2138786A JPS62180541A (en) 1986-02-03 1986-02-03 Stamper for injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2138786A JPS62180541A (en) 1986-02-03 1986-02-03 Stamper for injection molding

Publications (1)

Publication Number Publication Date
JPS62180541A true true JPS62180541A (en) 1987-08-07

Family

ID=12053665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2138786A Pending JPS62180541A (en) 1986-02-03 1986-02-03 Stamper for injection molding

Country Status (1)

Country Link
JP (1) JPS62180541A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444367A1 (en) * 1988-08-25 1991-09-04 Daicel Chemical Industries, Ltd. A stamper for injection molding
US5087552A (en) * 1988-10-19 1992-02-11 Tokyo Ohka Kogyo Co., Ltd. Photosensitive resin composition
EP0640458A1 (en) * 1993-08-31 1995-03-01 General Electric Company Insulated mold structure for injection molding of optical disks
US5897814A (en) * 1997-06-13 1999-04-27 General Electric Company Method for injection molding of optical discs
EP1027978A2 (en) * 1999-02-09 2000-08-16 Ricoh Company, Ltd. Optical disk and method of producing the same
US6146558A (en) * 1998-05-01 2000-11-14 General Electric Company Structure and method for molding optical disks
US6787071B2 (en) 2001-06-11 2004-09-07 General Electric Company Method and apparatus for producing data storage media
US7018572B2 (en) 2001-06-11 2006-03-28 General Electric Company Method for producing data storage media
WO2013146985A1 (en) * 2012-03-30 2013-10-03 コニカミノルタアドバンストレイヤー株式会社 Molding die and manufacturing method for same

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444367A1 (en) * 1988-08-25 1991-09-04 Daicel Chemical Industries, Ltd. A stamper for injection molding
US5087552A (en) * 1988-10-19 1992-02-11 Tokyo Ohka Kogyo Co., Ltd. Photosensitive resin composition
EP0640458A1 (en) * 1993-08-31 1995-03-01 General Electric Company Insulated mold structure for injection molding of optical disks
US5897814A (en) * 1997-06-13 1999-04-27 General Electric Company Method for injection molding of optical discs
US6146558A (en) * 1998-05-01 2000-11-14 General Electric Company Structure and method for molding optical disks
US6533968B1 (en) 1998-05-01 2003-03-18 General Electric Company Structure and method for molding optical disks
US6508961B1 (en) 1998-05-01 2003-01-21 General Electric Company Structure and method for molding optical disks
US6468618B1 (en) * 1999-02-09 2002-10-22 Ricoh Company, Ltd. Optical disk and method of producing the same
EP1027978A3 (en) * 1999-02-09 2000-09-27 Ricoh Company, Ltd. Optical disk and method of producing the same
EP1027978A2 (en) * 1999-02-09 2000-08-16 Ricoh Company, Ltd. Optical disk and method of producing the same
US6686018B2 (en) 1999-02-09 2004-02-03 Ricoh Company, Ltd. Optical disk and method of producing the same
US6998163B2 (en) 1999-02-09 2006-02-14 Ricoh Company, Ltd. Optical disk and method of producing the same
US7419710B2 (en) 1999-02-09 2008-09-02 Ricoh Company, Ltd. Stamper for molding article and method of producing said stamper
US6787071B2 (en) 2001-06-11 2004-09-07 General Electric Company Method and apparatus for producing data storage media
US7018572B2 (en) 2001-06-11 2006-03-28 General Electric Company Method for producing data storage media
WO2013146985A1 (en) * 2012-03-30 2013-10-03 コニカミノルタアドバンストレイヤー株式会社 Molding die and manufacturing method for same

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