MY175819A - Polishing composition, method for producing magnetic disk substrate,and magnetic disk substrate - Google Patents

Polishing composition, method for producing magnetic disk substrate,and magnetic disk substrate

Info

Publication number
MY175819A
MY175819A MYPI2016702541A MYPI2016702541A MY175819A MY 175819 A MY175819 A MY 175819A MY PI2016702541 A MYPI2016702541 A MY PI2016702541A MY PI2016702541 A MYPI2016702541 A MY PI2016702541A MY 175819 A MY175819 A MY 175819A
Authority
MY
Malaysia
Prior art keywords
magnetic disk
disk substrate
polishing composition
polishing
producing magnetic
Prior art date
Application number
MYPI2016702541A
Inventor
Matsunami Yasushi
OOTSU Taira
Yokomichi Noritaka
MAKINO Yuusuke
Original Assignee
Fujimi Inc
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 Fujimi Inc filed Critical Fujimi Inc
Publication of MY175819A publication Critical patent/MY175819A/en

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Provided are a polishing composition that uses a silica abrasive and is able to bring about a high polishing rate and excellent surface quality; and a method for producing magnetic disk substrates with the use of the polishing composition. This invention provides a polishing composition comprising a silica abrasive. The silica abrasive has an average primary particle diameter of 40 nm or larger and an average silanol group density of 1.25 group/nm2 or lower. This invention also provides a method for producing magnetic disk substrates, the method comprising a step (1) of polishing a magnetic disk substrate using the polishing composition.
MYPI2016702541A 2015-07-15 2016-07-13 Polishing composition, method for producing magnetic disk substrate,and magnetic disk substrate MY175819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015141291A JP6564638B2 (en) 2015-07-15 2015-07-15 Polishing composition, magnetic disk substrate manufacturing method, and magnetic disk substrate

Publications (1)

Publication Number Publication Date
MY175819A true MY175819A (en) 2020-07-10

Family

ID=57887685

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2016702541A MY175819A (en) 2015-07-15 2016-07-13 Polishing composition, method for producing magnetic disk substrate,and magnetic disk substrate

Country Status (2)

Country Link
JP (1) JP6564638B2 (en)
MY (1) MY175819A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019004161A1 (en) * 2017-06-26 2019-01-03 花王株式会社 Silica slurry for polishing-liquid composition
JP7096714B2 (en) * 2017-06-26 2022-07-06 花王株式会社 Silica slurry for polishing liquid composition
JP7400209B2 (en) * 2019-05-07 2023-12-19 三菱ケミカル株式会社 Silica particles, silica sol, polishing composition, polishing method, semiconductor wafer manufacturing method, and semiconductor device manufacturing method
CN114106701A (en) * 2021-12-03 2022-03-01 安徽光智科技有限公司 Polishing solution for zinc sulfide and preparation method thereof
JP2024073372A (en) * 2022-11-17 2024-05-29 花王株式会社 Polishing liquid composition

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009104465A1 (en) * 2008-02-18 2009-08-27 Jsr株式会社 Aqueous dispersion for chemical mechanical polishing and chemical mechanical polishing method
JPWO2014007063A1 (en) * 2012-07-06 2016-06-02 日立化成株式会社 Polishing liquid for CMP, storage liquid and polishing method

Also Published As

Publication number Publication date
JP2017019978A (en) 2017-01-26
JP6564638B2 (en) 2019-08-21

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