发明名称 |
PROCESS FOR PREPARING WATER-SOLUBLE SULFURIZED DISPERSANTS FROM INDENE-COUMARONE RESINS, CONCENTRATED DISPERSION OF CARBON IN WATER, AND COMPOSITION OF CONCRETE |
摘要 |
FIELD: chemical industry. SUBSTANCE: claimed process comprises reacting indene-coumarone resin with SO<SB>3</SB> in the presence of SO<SB>2</SB> as solvent at SO<SB>3</SB> to resin weight ratio from 0.6 to 1.0 by weight; reaction of temperature varies from 20 to 90; SO<SB>2</SB> is removed from reaction medium. Sulfurized product is neutralized with aqueous solution of alkali metal or alkaline-earth hydroxide or ammonium hydroxide. The present invention also describes concentrated dispersion of carbon in water and concrete composition which further comprises sulfurized product in saline form as defined in claim 1. The claimed process is simple and suitable in operation, safe for environment and more efficient as compared with well known analogues. EFFECT: more efficient preparation process and improved properties of the concrete composition. 11 cl, 5 ex, 3 tbl |
申请公布号 |
RU2126423(C1) |
申请公布日期 |
1999.02.20 |
申请号 |
RU19940011571 |
申请日期 |
1994.04.07 |
申请人 |
EHNIRICHERKE S.P.A.;SNAMPROGETTI S.P.A. |
发明人 |
ARMANDO MARKOTUL'O;FAUSTO M'JANO;EHLIO DONATI |
分类号 |
B01F7/12;B01F17/00;B01F17/12;C04B24/16;C04B24/20;C04B24/26;C04B28/02;C08F8/36;C10L1/32 |
主分类号 |
B01F7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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