发明公开
- 专利标题： VERFAHREN ZUR HERSTELLUNG VON SILICIA-HALTIGEN POLYOL-DISPERSIONEN UND DEREN VERWENDUNG ZUR HERSTELLUNG VON POLYURETHANWERKSTOFFEN
- 专利标题（英）： Method for producing polyol dispersions containing silica and use thereof for producing polyurethane materials
- 专利标题（中）： 用于生产含二氧化硅多元醇分散体
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申请号： EP09783835.3申请日： 2009-10-08
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公开(公告)号： EP2337806A1公开(公告)日： 2011-06-29
- 发明人: ELING, Berend , TOMOVIC, Zeljko , AUFFARTH, Stefan , TRAUT, Alexander
- 申请人： BASF SE
- 申请人地址： 67056 Ludwigshafen DE
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： 67056 Ludwigshafen DE
- 代理机构： Schuck, Alexander
- 优先权： EP08166633 20081015
- 国际公布： WO2010043530 20100422
- 主分类号： C08G18/38
- IPC分类号： C08G18/38 ; C01B33/145 ; C01B33/146 ; C08K9/06 ; C09C1/30
摘要：
The invention relates to a method for producing polyols containing silicate, comprising the steps of (i) mixing an aqueous silica sol (K) having an average particle diameter of 1 to 150 nm with a content of silicic acid, calculated as SiO
2 , from 1 to 60 wt % at a pH of 1 to 6, relative to the content of SiO
2 used, and 0.1 to 20 times the amount, relative to water, of at least one organic solvent (L) selected from the group comprising methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 2-methyl-2-propanol, 1-chloro-2-propanol, cyclopentanol, cyclohexanol, 1,4-dioxane, tetrahydrofuran, 1-methoxy-2-propanol, 1-ethoxy-2-propanol, 2-ethoxyethanol, 2-methyl-2-propanol, 2-methoxyethanol, dimethylformamide, acetonitrile, dimethyl sulfoxide, acetone, methyl ethyl ketone, and ethyl acetate, and (ii) mixing the mixture thus obtained with a polyol, (iii) at least partially distilling off the organic solvent (L) and water, (iv) mixing with at least one compound (S) comprising at least one at least mono-alkoxylated silyl group and at least one alkyl, cycloalkyl, or aryl substituent which can contain heteroatoms, wherein said substituent optionally comprises a group which is reactive with an alcohol, an amine, or an isocyanate at an amount of 0.1 to 20 μmol (S) per m
2 surface of (K), wherein the steps (i), (ii), and (iv) can be performed simultaneously or consecutively in any sequence, (v) optionally adjusting the pH of the polyol containing silicate to a value of 7 to 12 by adding a strongly basic compound, wherein the step (v) can also be performed between the steps (iii) and (iv).
2 , from 1 to 60 wt % at a pH of 1 to 6, relative to the content of SiO
2 used, and 0.1 to 20 times the amount, relative to water, of at least one organic solvent (L) selected from the group comprising methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 2-methyl-2-propanol, 1-chloro-2-propanol, cyclopentanol, cyclohexanol, 1,4-dioxane, tetrahydrofuran, 1-methoxy-2-propanol, 1-ethoxy-2-propanol, 2-ethoxyethanol, 2-methyl-2-propanol, 2-methoxyethanol, dimethylformamide, acetonitrile, dimethyl sulfoxide, acetone, methyl ethyl ketone, and ethyl acetate, and (ii) mixing the mixture thus obtained with a polyol, (iii) at least partially distilling off the organic solvent (L) and water, (iv) mixing with at least one compound (S) comprising at least one at least mono-alkoxylated silyl group and at least one alkyl, cycloalkyl, or aryl substituent which can contain heteroatoms, wherein said substituent optionally comprises a group which is reactive with an alcohol, an amine, or an isocyanate at an amount of 0.1 to 20 μmol (S) per m
2 surface of (K), wherein the steps (i), (ii), and (iv) can be performed simultaneously or consecutively in any sequence, (v) optionally adjusting the pH of the polyol containing silicate to a value of 7 to 12 by adding a strongly basic compound, wherein the step (v) can also be performed between the steps (iii) and (iv).
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