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A platform for research: civil engineering, architecture and urbanism
METHOD OF MANUFACTURING DISPERSANT FOR INORGANIC POWDER AND DISPERSANT FOR INORGANIC POWDER
PROBLEM TO BE SOLVED: To provide a dispersant which can grind efficiently finely fine inorganic powder even in a short time and comprises a carboxylic acid type copolymer excellent in dispersion stability.SOLUTION: A dispersant for inorganic powder which comprises a polycarboxylic acid copolymer having a weight-average molecular weight of 3,000 to 14,000 is provided by polymerizing a polyoxyalkylene derivative exhibited by formula (1) and maleic acid type compound (b) in the presence of a water-soluble azo type polymerization initiator: RO(AO)R...(1) (Rpresents a hydrocarbon group of 1-4C, Rpresents an unsaturated hydrocarbon of 2-5C, AO presents an oxyalkylene group of 2-3C and n is an average addition mol number of an oxyalkylene group and denotes 1 to 100).SELECTED DRAWING: None
【課題】微細な無機粉体に対して短時間でも効率よく細かく粉砕することができ、かつ分散安定性に優れたポリカルボン酸系共重合体からなる分散剤を提供する。【解決手段】式（１）で示されるポリオキシアルキレン誘導体と、（ｂ）マレイン酸系化合物とを、水溶性アゾ系重合開始剤の存在下に重合させることによって、重量平均分子量が3,000〜14,000のポリカルボン酸系共重合体からなる無機粉体用分散剤を得る。R1O(AO)nR2・・・・（１）（R1は炭素数1〜4の炭化水素基を示し、R2は炭素数2〜5の不飽和炭化水素基を示し、AOは炭素数2〜3のオキシアルキレン基を示し、nはオキシアルキレン基の平均付加モル数であって、1〜100を示す。）【選択図】 なし
METHOD OF MANUFACTURING DISPERSANT FOR INORGANIC POWDER AND DISPERSANT FOR INORGANIC POWDER
PROBLEM TO BE SOLVED: To provide a dispersant which can grind efficiently finely fine inorganic powder even in a short time and comprises a carboxylic acid type copolymer excellent in dispersion stability.SOLUTION: A dispersant for inorganic powder which comprises a polycarboxylic acid copolymer having a weight-average molecular weight of 3,000 to 14,000 is provided by polymerizing a polyoxyalkylene derivative exhibited by formula (1) and maleic acid type compound (b) in the presence of a water-soluble azo type polymerization initiator: RO(AO)R...(1) (Rpresents a hydrocarbon group of 1-4C, Rpresents an unsaturated hydrocarbon of 2-5C, AO presents an oxyalkylene group of 2-3C and n is an average addition mol number of an oxyalkylene group and denotes 1 to 100).SELECTED DRAWING: None
【課題】微細な無機粉体に対して短時間でも効率よく細かく粉砕することができ、かつ分散安定性に優れたポリカルボン酸系共重合体からなる分散剤を提供する。【解決手段】式（１）で示されるポリオキシアルキレン誘導体と、（ｂ）マレイン酸系化合物とを、水溶性アゾ系重合開始剤の存在下に重合させることによって、重量平均分子量が3,000〜14,000のポリカルボン酸系共重合体からなる無機粉体用分散剤を得る。R1O(AO)nR2・・・・（１）（R1は炭素数1〜4の炭化水素基を示し、R2は炭素数2〜5の不飽和炭化水素基を示し、AOは炭素数2〜3のオキシアルキレン基を示し、nはオキシアルキレン基の平均付加モル数であって、1〜100を示す。）【選択図】 なし
METHOD OF MANUFACTURING DISPERSANT FOR INORGANIC POWDER AND DISPERSANT FOR INORGANIC POWDER
無機粉体用分散剤の製造方法および無機粉体用分散剤
OKABAYASHI ZENJI (author) / ODA KAZUHIRO (author) / MATSUI TATSUYA (author)
2018-09-20
Patent
Electronic Resource
Japanese
IPC:
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
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C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen