Refractory insulating compositions专利检索-地聚合物水泥地质聚合物聚合物和橡胶专利检索查询-专利查询网

Refractory insulating compositions

阅读：229发布：2022-03-06

专利汇可以提供Refractory insulating compositions专利检索，专利查询，专利分析的服务。并且A pumpable refractory insulating composition comprises an aqueous slurry of a hydraulic setting cement, refractory aggregate or refractory fiber material, and lesser amounts of a particulate synthetic organic polymer and a surface active agent. The addition of the organic polymer enables the satisfactory use of thicker mixtures in pumping equipment, resulting in more even coatings of refractory insulation which have lower densities, greater resistance to thermal shock, and reduced shrinkage during drying and firing.，下面是Refractory insulating compositions专利的具体信息内容。

权利要求

1. A PUMPABLE REFRACTORY INSULATING COMPOSITION COMPRISING FROM ABOUT 20 TO ABOUT 50 PERCENT OF HYDRAULIC SETTING CEMENT, FROM ABOUT 10 TO ABOUT 25 PERCENT OF FINELY DIVIDED REFRACTORY MATERIAL, FROM ABOUT 1 TO ABOUT 5 PERCENT OF A PARTICULATE SYNTHETIC ORGANIC POLYMER, FROM ABOUT 0.15 TO ABOUT 0.3 PERCENT OF A SURFACE ACTIVE AGENT, AND FROM ABOUT 20 TO ABOUT 70 PERCENT WATER.

2. A pumpable insulating composition according to claim 1 comprising from about 25 to about 40 percent of hydraulic setting cement, from about 12 to about 20 percent of finely divided refractory material, from about 1.5 to about 2.5 percent of a particulate synthetic organic polymer, from about 0.1 to about 0.15 percent of a surface active agent, and from about 35 to about 65 percent water.

3. A pumpable insulating composition according to claim 2 comprising from about 30 to about 35 percent of hydraulic setting cement, from about 14 to about 18 percent of finely divided refractory material, from about 1.7 to about 2 percent of a particulate synthetic organic polymer, from about 0.1 to about 0.15 percent of a surface active agent, and from about 50 to about 60 percent water.

4. A pumpable insulating composition according to claim 1 in which the particulate synthetic organic polymer is selected from the group of polymeric materials consisting of polystyrene, polyamides, polyethylenes, polypropylenes and polyurethanes.

5. A pumpable insulating composition according to claim 1 in which the hydraulic setting cement is a calcium aluminate cement, and the particulate synthetic organic polymer comprises polystyrene beads.

6. A pumpable insulating composition according to claim 1 in which the finely divided refractory material comprises material selected from the group consisting of refractory fibers and particulate refractory material.

7. A pumpable insulating composition according to claim 6 in which the refractory fibers are aluminum silicate.

8. A pumpable insulating composition according to claim 1 in which the composition includes up to about 4 percent of colloidal silica.

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Refractory insulating compositions

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