发明授权
- 专利标题： Cementitious compositions and methods
- 专利标题（中）： CEMENTITIOUS组合物和方法
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申请号： US30849072申请日： 1972-11-21
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公开(公告)号： US3847858A公开(公告)日： 1974-11-12
- 发明人: EILERS L , PARKS C
- 申请人： DOW CHEMICAL CO
- 专利权人： Dow Chemical Co
- 当前专利权人： Dow Chemical Co
- 优先权： US30849072 1972-11-21; US16187571 1971-07-12; US1729070 1970-03-06; US48653065 1965-09-10
- 主分类号： C08J3/09
- IPC分类号： C08J3/09 ; C09K8/50 ; C09K17/22 ; C08F45/34
摘要：
1. A COMPOSITION OF MATTER WHICH COMPRISES A LIQUID SLURRY OF (A) FROM ABOUT 0.1 TO ABOUT 2 PARTS BY WEIGHT OF A WATER-SOLUBLE CARBAMOLY POLYMER PER PART BY WEIGHT OF A LIQUID, GEL FORMING ORGANO SOLVENT THEREFORE COMPOSED; OF A LIQUID ORGANIC NON-SOLVENT FOR THE POLYMER SELECTED FROM THE GROUP CONSISTING OF PROPYLENE GLYCOL, WATER-,ISCIBLE ALKYLENE OXIDE POLYMERS HAVING MOLECULAR WEIGHT UP TO ABOUT 600 AND WATER-MISCIBLE ALKYL AND ARYL ETHERS OF THE POLYMERS WHEREIN THE ETHERIFYING MOIETY CONTAINS FROM 1 TO 12 CARBONS AND (B) AT LEAST ABOUT 0.05 PART BY WEIGHT PER PART BY WEIGHT OF THE NON-SOLVENT, OF AN ORGANIC SOLVENT FOR THE POLYMER, THE AMOUNT OF THE LATTER BEING SUFFICIENT TO RENDER THE LIQUID MIXTURE A SOLVENT FOR THE POLYMER, SAID ORGANIC SOLVENT BEING PENTAERYTHRITOL.