MY187480A - Polishing liquid composition for magnetic disk substrate - Google Patents

Polishing liquid composition for magnetic disk substrate

Info

Publication number
MY187480A
MY187480A MYPI2018702067A MYPI2018702067A MY187480A MY 187480 A MY187480 A MY 187480A MY PI2018702067 A MYPI2018702067 A MY PI2018702067A MY PI2018702067 A MYPI2018702067 A MY PI2018702067A MY 187480 A MY187480 A MY 187480A
Authority
MY
Malaysia
Prior art keywords
liquid composition
polishing liquid
magnetic disk
disk substrate
silica particles
Prior art date
Application number
MYPI2018702067A
Inventor
Takushima Daiki
Yamaguchi Norihito
Kimura Yosuke
Original Assignee
Kao 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
Application filed by Kao Corp filed Critical Kao Corp
Publication of MY187480A publication Critical patent/MY187480A/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09G—POLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00—Polishing compositions
    • C09G1/04—Aqueous dispersions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

A polishing liquid composition for a magnetic disk substrate can reduce long wavelength waviness after polishing without significantly decreasing a polishing rate in rough polishing. The polishing liquid composition contains non-spherical silica particles A, spherical silica particles B, and water and has a pH of 0.5 or more and 6.0 or less. The average minor axis of the non-spherical silica particles A is 105 nm or more and is larger than the average minor axis of the spherical silica particles B. (Figure 1)
MYPI2018702067A 2015-11-30 2016-11-24 Polishing liquid composition for magnetic disk substrate MY187480A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015233525 2015-11-30
PCT/JP2016/084837 WO2017094592A1 (en) 2015-11-30 2016-11-24 Polishing liquid composition for magnetic disk substrate

Publications (1)

Publication Number Publication Date
MY187480A true MY187480A (en) 2021-09-23

Family

ID=58796657

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2018702067A MY187480A (en) 2015-11-30 2016-11-24 Polishing liquid composition for magnetic disk substrate

Country Status (5)

Country Link
JP (1) JP6771484B2 (en)
GB (1) GB2560842A (en)
MY (1) MY187480A (en)
TW (1) TWI723085B (en)
WO (1) WO2017094592A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6944231B2 (en) * 2017-06-27 2021-10-06 花王株式会社 Abrasive liquid composition
JP6957232B2 (en) * 2017-06-27 2021-11-02 花王株式会社 Abrasive liquid composition
JP7111492B2 (en) * 2018-03-30 2022-08-02 株式会社フジミインコーポレーテッド Polishing composition, pad surface conditioning composition and use thereof
JP7292923B2 (en) * 2019-03-29 2023-06-19 株式会社フジミインコーポレーテッド Method for manufacturing magnetic disk substrate, polishing composition and polishing method
CN115820128A (en) * 2022-11-22 2023-03-21 深圳市永霖科技有限公司 Chemical mechanical polishing solution for indium phosphide polishing and polishing process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009078123A1 (en) * 2007-12-17 2009-06-25 Sanyo Chemical Industries, Ltd. Cleaning agent and cleaning method for electronic material
JP6259182B2 (en) * 2012-12-12 2018-01-10 株式会社フジミインコーポレーテッド Polishing liquid for primary polishing of magnetic disk substrate with nickel phosphorus plating
JP6138677B2 (en) * 2013-12-27 2017-05-31 花王株式会社 Polishing liquid composition for magnetic disk substrate

Also Published As

Publication number Publication date
JP6771484B2 (en) 2020-10-21
JPWO2017094592A1 (en) 2018-09-13
TW201727626A (en) 2017-08-01
WO2017094592A1 (en) 2017-06-08
GB2560842A (en) 2018-09-26
TWI723085B (en) 2021-04-01
GB201809369D0 (en) 2018-07-25

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