Abstract:
This invention provides phyllosilicates and polyfunctional dispersants which can be manipulated to selectively control the viscosity of phyllosilicate slurries. The polyfunctional dispersants used in the present invention, which include at least three functional groups, increase the dispersion and exfoliation of phyllosilicates in polymers and, when used in conjunction with phyllosilicate slurries, significantly reduce the viscosity of slurries having high concentrations of phyllosilicates. The functional groups of the polyfunctional dispersants are capable of associating with multivalent metal cations and low molecular weight organic polymers, which can be manipulated to substantially increase or decrease the viscosity of the slurry in a concentration dependent manner. The polyfunctional dispersants of the present invention can also impart desirable properties on the phyllosilicate dispersions including corrosion inhibition and enhanced exfoliation of the phyllosilicate platelets.
Abstract:
This invention provides phyllosilicates and polyfunctional dispersants which can be manipulated to selectively control the viscosity of phyllosilicate slurries. The polyfunctional dispersants used in the present invention, which include at least three functional groups, increase the dispersion and exfoliation of phyllosilicates in polymers and, when used in conjunction with phyllosilicate slurries, significantly reduce the viscosity of slurries having high concentrations of phyllosilicates. The functional groups of the polyfunctional dispersants are capable of associating with multivalent metal cations and low molecular weight organic polymers, which can be manipulated to substantially increase or decrease the viscosity of the slurry in a concentration dependent manner. The polyfunctional dispersants of the present invention can also impart desirable properties on the phyllosilicate dispersions including corrosion inhibition and enhanced exfoliation of the phyllosilicate platelets.
Abstract:
A lubricating grease composition that is a mixture of (a) a hydrocarbon-based oil, (b) a perfluoro-polyalkyl ether oil of the formula A′—(O—CF2)v—(O—C2F4)w—(O—C3F6)x—(O—C4F8)y—(O—CF2CF(CF3))z—O—A″ in which A′ is —CF3, —C2F5, —C3F7, or —CF2T where T is H or Cl, A″ is A′ or —CF3, C2F5, —C3F7, or —CF2T, where T is H or Cl1 and v, w, x, y and z are whole numbers ≧0, (c) a dicarbamide as a thickening agent, (d) typical additives and (e) organic and inorganic solid lubricants. A process for the production of the lubricating grease composition is also provided.
Abstract translation:一种润滑脂组合物,其是(a)烃类油,(b)下式的全氟聚烷基醚油的混合物,其中A'是-CF 3,-C 2 F 5,-C 3 F 7或-CF 2 T,其中T是H 或Cl,A“是A'或-CF 3,C 2 F 5,-C 3 F 7或-CF 2 T,其中T是H或Cl1,并且v,w,x,y和z是整数> = 0,(c) 增稠剂,(d)典型的添加剂和(e)有机和无机固体润滑剂。还提供了生产润滑脂组合物的方法。
Abstract:
Method and composition for applying a coating to a metallic surface, the surface being immersed in an acidic aqueous coating composition comprising dispersed solid particles of an organic polymeric resinous coating-forming material and an oxidizing agent, wherein the weight or thickness of the coating formed on the surface is a function of the time the surface is immersed in the composition.
Abstract:
A continuous process for manufacture of soap thickened grease compositions where a saponifiable material and a metal base are continuously introduced at an elevated temperature into a saponification zone maintained at superatmospheric pressure and saponified under turbulent conditions, wherein the saponified product is mixed with an aqueous solution of oil-insoluble additive materials at a superatmospheric pressure sufficient for maintaining all water in the liquid phase, wherein the saponified material-additive mixture is heated to an elevated temperature of at least 350.degree. F., wherein the heated saponified material additive mixture is flowed into a dehydration zone maintained at a reduced pressure for flash vaporizing substantially all water therefrom and producing a dehydrated saponified material having oil-insoluble additive evenly dispersed therethrough as particles not exceeding about 10 microns, and wherein the dehydrated saponified material is blended with lubricating oil to produce a grease product.