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| Number | Title | Issue Date |
| 4863796 | Paper coated with synthetic alkali metal alumino-silicates A family of synthetic alkali metal aluminosilicates (SAMS) are produced by the hydrothermal reaction between kaolin clay and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall composition of where ... | 09/05/1989 |
| 4864028 | Spiro-tricyclicaromatic succinimide derivatives Disclosed are substituted or unsubstituted planar tricyclic fluorene or nuclear analogs thereof, spiro-coupled to a five-membered ring containing a secondary amide, and the pharmaceutically acceptable salts thereof. These compounds are useful, inter alia,... | 09/05/1989 |
| 4844664 | Conduit air dispenser for improved in-car slurrying An apparatus and method for improved in-car slurrying of dry bulk powder is described. The apparatus includes a plurality of mutually spaced conduits which extend downwardly from a manifold through the center of each hopper compartment in a hopper car, ea... | 07/04/1989 |
| 4842772 | Fire retardant pigment Alumina trihydrate particles coated with alkali metal silicate, alkaline earth metal silicate or alumino silicate are useful as fillers in paper and plastics and provide good opacity and brightness properties as well as fire retardancy. The alumina trihyd... | 06/27/1989 |
| 4830546 | Web member for improved in-car slurrying An improved method for slurrying bulk dry powder material within a hopper car is described. The method includes providing a static web of individual strands extending through the interior of the hopper compartment so that when water is admitted to the bot... | 05/16/1989 |
| 4812299 | Synthetic alkali metal alumino-silicates, methods and uses, compositions and their methods of preparation A family of novel and unique synthetic alkali metal alumino-silicates (SAMS) are produced by the hyrothermal reaction between kaolin clay and alkali metal silicates. The integrated composition of the SAMS products is a unique entity having an overall comp... | 03/14/1989 |
| 4795747 | 16-epiestriol to prevent, inhibit or reduce inflammation 16-epiestriol as an anti-inflammatory drug.... | 01/03/1989 |
| 4787782 | Open mesh device for improved in-car slurrying A method and apparatus for improved in-car slurrying of dry bulk powder in hopper cars is disclosed. The individual hopper car compartments have ports in the bottom therein for admitting air under pressure and water to form the slurry. The apparatus of th... | 11/29/1988 |
| 4780297 | Low brightness magnesium silicate filler and methods Low structure magnesium silicate pigment is useful as a low cost, low brightness filler for newsprint. The magnesium silicate is prepared by dissolving a serpentine mineral in sulfuric acid and reacting the resulting solution with an alkali metal silicate... | 10/25/1988 |
| 4717725 | Ophthalmic wound healing with aldose reductase inhibitors Method of promoting healing of ocular wounds comprising the topical application of an aldose reductase inhibitor; compositions comprising such inhibitors are also disclosed.... | 01/05/1988 |
| 4658993 | Metering dispenser for viscous compositions A dispensing device includes a hollow cylindrical body from which a high viscosity composition is discharged in precisely metered doses by means of a plunger rod longitudinally movable within the body. The plunger rod includes a series of thread segments ... | 04/21/1987 |
| 4659733 | Method for treating hypertension with 2,3-diamino-1,4-butanedithiol; 4,5-diamino-1,2-dithiane; and N-acyl and N-alkyl derivatives thereof Disclosed are 2,3-diamino-1,4-butanedithiol; 4,5-diamino-1,2-dithiane; and their N-acyl and N-alkyl derivatives. Also disclosed are processes for preparing the disclosed compounds; pharmaceutical compositions comprising such compounds; and a method of tre... | 04/21/1987 |
| 4623631 | Filtration of zeolites The filtration of zeolites, for example sodium alumino silicates, from aqueous slurries containing the zeolites is improved by washing the filter cake with an aqueous solution of any salt which has the capacity to produce a stabilized slurry of the zeolit... | 11/18/1986 |
| 4612342 | Rubber compositions containing small particle size zeolites Rubber compositions which contain zeolite particles having particle sizes of no more than 1.6 microns in diameter with at least 90% of the weight of the particles being between 0.1 and 3.2 microns in diameter, a binding agent, water, and a solubilizing ag... | 09/16/1986 |
| 4605248 | Insulating union and method An improved insulating union is provided of the type designed to prevent electrolytic corrosion in flow lines. The tail sub is physically separated from both the threaded sub and nut by a plastic layer. An annular groove is conventionally provided in the ... | 08/12/1986 |
| 4584330 | Synthetic alkali metal aluminum silicates as pigment/colorant extenders and property enhancers in plastics Plastic compositions having enhanced tensile, reinforcing, viscosity, opacity, brightness or pigment-extending properties comprise a plastic material having dispersed therein a synthetic sodium aluminum silicate with an average particle size of about 3.0 ... | 04/22/1986 |
| 4557916 | Synthetic calcium silicates and methods of preparation Alkaline earth metal alumino silicates of the formula: wherein Me is an alkaline earth metal, B is an alkali metal, and X is an integer of 1 to 3, are amorphous very high structure absorbents. The products are prepared by reaction of a reactive clay with an al... | 12/10/1985 |
| 4539191 | Preparation of sodium silicate solutions Sodium silicate solutions are prepared by dissolving sand in sodium hydroxide solution at a pressure of at least 100 psig and at a temperature of at least 130° C. to produce a sodium silicate solution having a silica to sodium oxide molar ratio of betwee... | 09/03/1985 |
| 4497918 | Thixotropic unsaturated polyester compositions and methods Disclosed are thixotropic polyester compositions wherein the thixotropic characteristics are provided by incorporation into the polyester of a member selected from the group consisting of a precipitated silicon dioxide and a mixture of a precipitated sili... | 02/05/1985 |
| 4443422 | Synthesis of zeolites of small and uniform size having a high magnesium exchange capacity Zeolites of small and uniform size are formed having high magnesium exchange capacities. Zeolite A is disclosed having an average particle size less than 1.7 microns, a calcium carbonate exchange capacity of more than 230 mg calcium carbonate per gram zeo... | 04/17/1984 |
| 4430496 | Strong anion exchange composition and methods A strong anion exchange composition useful in monophosphate nucleotide isomer separations is comprised of an inert porous particle having a silyl alkyl ammonium compound fixedly attached by a covalent silicon-oxygen-silicon bond to the surface thereof. A ... | 02/07/1984 |
| 4416805 | Synthesis of zeolites of small and uniform size having a high magnesium exchange capacity Zeolites of small and uniform size are formed having high magnesium exchange capacities. Zeolite A is disclosed having an average particle size less than 1.7 microns, a calcium carbonate exchange capacity of more than 230 mg calcium carbonate per gram zeo... | 11/22/1983 |
| 4356093 | Method of increasing the effectiveness of or the effective production rate of a process by integrated feed A method of increasing the production or efficiency of a process in which a fluid is passed through a matrix the efficiency of which decreases with use in which the matrix is initially filled at a high rate, and an initial flow rate on the order of not mo... | 10/26/1982 |
| 4330518 | Removal of contaminants from zeolite mother liquors The contaminants level of a mother liquor can be reduced in the process of forming solutions of sodium aluminate and sodium silicate, adding together the two solutions to produce a reaction mixture comprising a mother liquor and an amorphous sodium alumin... | 05/18/1982 |
| 4272509 | Precipitated silicon dioxide cleaning agent and dentifrice composition A synthetic precipitated silicon dioxide is provided which is an abrasive agent for use in toothpaste or other dentifrice compositions wherein the precipitated silicon dioxide has a controlled particle size, narrow size distribution and controlled functio... | 06/09/1981 |
| 4244707 | Abrasive composition for use in toothpaste The corrosion and staining of unlined aluminum tube surfaces by dentifrices such as toothpastes, particularly when the dentifrices contain therapeutic agents, is substantially prevented by incorporation into the dentifrice of a controlled amount of an alk... | 01/13/1981 |
| 4243428 | Processes for the manufacturing of precipitated silica Process for the manufacturing of silicas having a specific surface area ranging between 100 and 600 sq m/g, which does not vary upon drying, due to the action of a strong acid on an alkaline silicate, characterized by the fact that the addition of strong ... | 01/06/1981 |
| 4235856 | Method of producing a zeolite of controlled particle size Zeolite X can be produced in a reaction mixture having a SiO2 /Al2 O3 molar ratio greater than 5:1. Zeolite A can be produced in a reaction mixture having a SiO2 /Al2 O3 molar ratio greater... | 11/25/1980 |
| 4161455 | Novel precipitated siliceous products and methods for their use and production A method for producing a precipitated silicon dioxide having a new combination of physical and chemical properties is disclosed. The pigments are produced by acidulating a solution of an alkali metal silicate with an acid under controlled precipitation co... | 07/17/1979 |
| 4157920 | Novel precipitated siliceous products and methods for their use and production A method for producing a precipitated silicon dioxide having a new combination of physical and chemical properties is disclosed. The pigments are produced by acidulating a solution of an alkali metal silicate with an acid under controlled precipitation co... | 06/12/1979 |
| 4014654 | Apparatus for producing carbon black An apparatus for producing an extended structure SRF carbon black having good rubber reinforcing properties is disclosed. The apparatus comprises a unique burner which supplies combustion fuel gases in two separate areas of the burner and permits selectiv... | 03/29/1977 |
| 3988162 | Amorphous precipitated silica products and method for their production A new method for producing precipitated silicas having a unique combination of physical and chemical properties is disclosed. The silicas are produced by acidulating a solution of an alkali metal silicate having a specific SiO2 /Na2 ... | 10/26/1976 |
| 3971631 | Pelletizing alkali metal polysilicates A method for producing alkali metal polysilicates is disclosed. Polysilicates, produced by hydrothermally reacting an aqueous dispersion of finely-divided silica and an alkali metal hydroxide are spray dried and the solid product is fractured and pulveriz... | 07/27/1976 |
| 3971727 | Alkali metal polysilicates, methods for their production and detergent compositions employing same A method for producing alkali metal polysilicate complexes and their use as builders in detergents is disclosed. The polysilicates are produced by hydrothermally reacting, under certain controlled conditions, an aqueous dispersion of finely-divided silica... | 07/27/1976 |
| 3967563 | Process for producing precipitated thickener silica Precipitated silicas having very high structure as defined by the ability of the silica material to hold water in its wet cake, high oil absorption, and very high surface area can be produced by controlling the rate of acidulation during their production ... | 07/06/1976 |
