DETERGENT COMPOSITION FOR HARD DISK SUBSTRATES

A cleaning composition for a hard disk substrate that has excellent cleanability for particles remaining on a substrate surface is provided. The cleaning composition for a hard disk substrate includes a polymer (component A). The polymer (component A) contains: a constituent unit (a1) derived 5 from...

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Bibliographic Details
Main Author Fumihiro TAKAZAWA
Format Patent
LanguageEnglish
Published 30.01.2019
Subjects
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
CLEANING
CLEANING IN GENERAL
COMPOSITIONS BASED THEREON
DETERGENT COMPOSITIONS
DETERGENTS
FATTY ACIDS THEREFROM
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICS
PREVENTION OF FOULING IN GENERAL
RECOVERY OF GLYCEROL
RESIN SOAPS
SOAP OR SOAP-MAKING
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
USE OF SINGLE SUBSTANCES AS DETERGENTS
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Summary:A cleaning composition for a hard disk substrate that has excellent cleanability for particles remaining on a substrate surface is provided. The cleaning composition for a hard disk substrate includes a polymer (component A). The polymer (component A) contains: a constituent unit (a1) derived 5 from a monomer a1 expressed by General Formula (I) below or an anhydride thereof: and a constituent unit (a2) derived from at least one monomer a2 selected from a monomer expressed by General Formula (II) below and a monomer expressed by General Formula (III) below. The component A has a weight average molecular weight of 15000 or more and 200000 or less and a pH of 8 or higher. 10 C C R2 COOM1 R1 R3 C C (CH2)qCOO(AO)n-X R4 H R5 15 Ტ᳃Უ Ტ᳃᳃Უ Ტ᳃᳃᳃Უ
Bibliography:Application Number: SG11201810980Q