Abstract:
Novel compositions useful as fluid gelling agents, especially for use in subterranean applications such as drilling fluids, are prepared by reacting an aqueous dispersion of a clay, such as bentonite, with an aqueous gel of a monodispersed mixed metal layered hydroxide of the formula Li.sub.m D.sub.d T(OH).sub.(m+2d+3+na) A.sub.a.sup.n, where D is a divalent metal, such as Mg, T is a trivalent metal, such as Al, and A represents other monovalent or polyvalent anions, the formula being described in detail in the disclosure.
Abstract:
Lubricant compositions adapted for use under extreme conditions comprising a major proportion of an oil or grease base material, and a minor proportion of an aromatic polyamide fibrous substance in an amount sufficient to impart a fibrous texture to the base material.
Abstract:
Novel compositions useful as fluid gelling agents, especially for use in subterranean applications such as drilling fluids, are prepared by reacting an aqueous dispersion of a clay, such as bentonite, with an aqueous gel of a monodispersed mixed metal layered hydroxide of the formula Li.sub.m D.sub.d T(OH).sub.m+2d+3+na) A.sub.a.sup.n, where D is a divalent metal, such as Mg, T is a trivalent metal, such as Al, and A represents other monovalent or polyvalent anions, the formula being described in detail in the disclosure.
Abstract:
The viscosity of liquid organic systems is increased by adding thereto an organophilic clay gellant which is the reaction product of a smectite-type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of said clay and from 100 to 120 milliequivalents per 100 grams of clay of methyl or benzyl trialkyl ammonium salt, wherein the alkyl groups independently contain from 14 to 20 carbon atoms.
Abstract:
Known higher dialkyl dimethyl ammonium clays can be surprisingly used as thixotropic agents in reinforced thermoset resins containing a major proportion of an unsaturated polyester and a minor proportion of styrene type monomer by employing a novel pregel process. In this process, the quaternary ammonium clay is pregelled in the styrene and the resulting pregel is then mixed with the unsaturated polyester to produce the final gel which is usually combined with glass fiber as a reinforcing agent for the production of thermoplastics. The novel clay gel compositions of the present invention have surprisingly advantageous properties, compared to the presently used fumed silica gel compositions.
Abstract:
1. A GREASE COMPOSITION HAVING SUPERIOR SHEAR STABILITY, WATER-RESISTANCE AND EXTREME PRESSURE PROPERTIES, COMPRISING FROM ABOUT 65 TO 90 WEIGHT PERCENT OF LUBRICATING MINERAL IOL FROM ABOUT 35 TO 10 WEIGHT PERCENT OF A THICKENING SYSTEM MADE UP OF 25 TO 9 WEIGHT PERCENT OF FIBROUS ASBESTOS AND ABOUT 10 TO 1 WEIGHT PERCENT OF POLYMERIC COATIG AGENT HAVING RECURRING UNITS INCLUDED WITHIN THE STRUCTURES:
(1,2,2,3,4-PENTA(R)-1,2-DIHYDRO-QUINOLINYL-R)N
WHEREIN THE AVERAGE DEGREE OF POLYMERIZATION RANGES FROM 2 TO ABOUT 10, AND R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL RADICALS AND HYDROXYLATD ALKYL RADICALS, SAID ALKYL RADICALS CONTAINING FROM 1 TO 6 CARBON ATOMS.
Abstract:
Grease composition for use in resin lubrication incorporating into a grease base material which includes a base oil and a fatty acid metal salt thickener at least one saturated or unsaturated fatty acid having from 8 to 22 carbon atoms and/or fatty acid metal salt, being a metal salt of a linear saturated fatty acid having from 8 to 14 carbon atoms or a metal salt of an unsaturated fatty acid having from 16 to 22 carbon atoms and from 1 to 4 unsaturated groups, the metal having a valence of from 1 to 4 excluding fatty acid metal salts used for the thickener. The grease composition of the present invention gives satisfactory lubrication properties between resin and resin or resin and other material such as a metal.