BR0003234A - Dispersion of particulate solid, and, process to reduce the viscosity of a dispersion - Google Patents
Dispersion of particulate solid, and, process to reduce the viscosity of a dispersionInfo
- Publication number
- BR0003234A BR0003234A BR0003234-4A BR0003234A BR0003234A BR 0003234 A BR0003234 A BR 0003234A BR 0003234 A BR0003234 A BR 0003234A BR 0003234 A BR0003234 A BR 0003234A
- Authority
- BR
- Brazil
- Prior art keywords
- dispersion
- sulfonate
- alkyl
- viscosity
- water
- Prior art date
Links
Abstract
"DISPERSãO DE SóLIDO PARTICULADO, E, PROCESSO PARA REDUZIR A VISCOSIDADE DE UMA DISPERSãO". A presente invenção diz respeito a uma dispersão de sólido particulado em um meio contendo água e pelo menos um agente de dispersão. Em particular, o agente de dispersão compreende um polímero solúvel em água, em que X é H, Na, K, Ca, Mg, NH~ 4~^ +^ ou A; e A é um polímero, copolímero ou sal destes, solúvel em água, que compreende um ou mais dos seguintes monómeros na forma polimerizada: em que R¹ é H, OH, alquila ou alcóxi ou acetóxi ou acetato de C~ 1~ a C~ 9~ R² é H, alquila ou alcóxi de C~ 1~ a C~ 3~, COOR~ 3~ R^ 3^ é H, Na, K ou alquila de C~ 1~ a C~ 10~; hidroxilpropil acrilato, propil metacrilato, ácido 2-acrilamido-2-propano sulfónico, estireno sulfonato de sódio, alilsulfonato de sódio, metil sulfonato de sódio, ácido vinil sulfónico e sais destes; acrilamida, metacrilamida, terc-butilacrilamida, (met)acrilonitrila, estireno, vinil acetato alilóxi-2-hidroxipropil sulfonato e dialquilacrilamida; e ainda em que A contenha pelo menos 10 monómeros na forma polimerizada."PARTICULATED SOLID DISPERSION, AND, PROCESS TO REDUCE THE VISCOSITY OF A DISPERSION". The present invention relates to a dispersion of particulate solid in a medium containing water and at least one dispersing agent. In particular, the dispersing agent comprises a water-soluble polymer, where X is H, Na, K, Ca, Mg, NH ~ 4 ~ ^ + ^ or A; and A is a water-soluble polymer, copolymer or salt thereof, comprising one or more of the following monomers in polymerized form: wherein R¹ is H, OH, alkyl or alkoxy or acetoxy or C ~ 1 ~ C ~ acetate 9 ~ R² is H, C ~ 1 ~ to C ~ 3 ~ alkyl, COOR ~ 3 ~ R ^ 3 ^ is H, Na, K or C ~ 1 ~ to C ~ 10 ~ alkyl; hydroxylpropyl acrylate, propyl methacrylate, 2-acrylamido-2-propane sulfonic acid, sodium styrene sulfonate, sodium allyl sulfonate, sodium methyl sulfonate, vinyl sulfonic acid and salts thereof; acrylamide, methacrylamide, tert-butylacrylamide, (meth) acrylonitrile, styrene, vinyl allyloxy-2-hydroxypropyl sulfonate and dialkylacrylamide; and even if A contains at least 10 monomers in polymerized form.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99401971 | 1999-08-02 | ||
| EP99/401971.9 | 1999-08-02 | ||
| US09/628,064 US6395813B1 (en) | 1999-08-02 | 2000-07-28 | Aqueous dispersions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR0003234A true BR0003234A (en) | 2001-04-24 |
| BR0003234B1 BR0003234B1 (en) | 2009-12-01 |
Family
ID=26153679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0003234-4A BR0003234B1 (en) | 1999-08-02 | 2000-07-31 | dispersion of a solid particulate material in an aqueous medium, and process for reducing the viscosity of a dispersion of a solid particulate material in an aqueous medium. |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4646366B2 (en) |
| CN (1) | CN1269878C (en) |
| BR (1) | BR0003234B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7442749B2 (en) | 2002-08-29 | 2008-10-28 | Nippon Shokubai Co., Ltd. | Sulfur-containing poly (unsaturated carboxylic acid) and its uses and production process |
| JPWO2004087574A1 (en) * | 2003-03-31 | 2006-06-29 | サンノプコ株式会社 | Dispersant for heavy calcium carbonate wet grinding process |
| JP5113784B2 (en) * | 2008-03-31 | 2013-01-09 | ローム アンド ハース カンパニー | Process for grinding minerals in aqueous dispersions using dispersants comprising homopolymers and / or copolymers of (meth) acrylic acid |
| JP5890433B2 (en) * | 2011-02-04 | 2016-03-22 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Low molecular weight phosphorus-containing polyacrylic acids and their use as scale inhibitors in water delivery systems |
| CN102160977B (en) * | 2011-02-28 | 2013-01-02 | 江苏富淼科技股份有限公司 | Mineral dispersant and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2608725B2 (en) * | 1987-07-23 | 1997-05-14 | 第一工業製薬株式会社 | Emulsifier for emulsion polymerization |
| US5294686A (en) * | 1993-03-29 | 1994-03-15 | Rohm And Haas Company | Process for efficient utilization of chain transfer agent |
| JP3157466B2 (en) * | 1995-07-24 | 2001-04-16 | 三洋化成工業株式会社 | Dispersant |
-
2000
- 2000-07-31 BR BRPI0003234-4A patent/BR0003234B1/en not_active IP Right Cessation
- 2000-08-02 JP JP2000234850A patent/JP4646366B2/en not_active Expired - Lifetime
- 2000-08-02 CN CN00122470.0A patent/CN1269878C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001070778A (en) | 2001-03-21 |
| BR0003234B1 (en) | 2009-12-01 |
| CN1284516A (en) | 2001-02-21 |
| CN1269878C (en) | 2006-08-16 |
| JP4646366B2 (en) | 2011-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/07/2000, OBSERVADAS AS CONDICOES LEGAIS. |
|
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 31.07.2020 |