Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4293460 | Polyamide yarn spin finish containing a rearranged glyceride and oxidized polyethylene An aqueous spin finish, a process for treating polyamide yarn therewith and polyamide yarn so treated are all disclosed. The oil portion of the spin finish comprises a rearranged glyceride, ethoxylated oleyl alcohol, ethoxylated nonyl phenol, ethoxylated ... | 10/06/1981 |
| 3988319 | Process for producing caprolactam from 6-aminocaproic acid Caprolactam is obtained in high yield and in short reaction time by completely dissolving 6-aminocaproic acid in methanol or ethanol and heating the solution at 170°-200° C.... | 10/26/1976 |
| 3976431 | Wiped-wall reactor In an essentially horizontal totally enclosed cylindrical wiped-wall polymer reactor having an essentially horizontal polymer flow, a pool of polymer in its lower portion, and driven wheels to create high surface area in the polymer to facilitate evaporat... | 08/24/1976 |
| 3971733 | Water-wettable wax composition and process for producing the same A water-wettable wax composition comprising a particulate hydrocarbon wax and an emulsifier which is (a) a hydrophilic oil-in-water emulsifier having an HLB of from about 10 to about 20, or (b) mixtures of said hydrophilic oil-in-water emulsifier with a l... | 07/27/1976 |
| 3970625 | Production of urea-formaldehyde concentrates A process for preparing an improved urea-formaldehyde concentrate particularly adapted for production of slow-release nitrogenous fertilizers. The improvement is achieved by accurately controlling the buffer strength and the degree of polymerization of th... | 07/20/1976 |
| 3965247 | Recovery of sodium nitrite from by-product process liquors containing sodium chloride According to the present invention, sodium nitrite is recovered from an aqueous solution containing dissolved sodium nitrite and sodium chloride by a process which comprises subjecting said solution to crystallization in a first crystallization zone under... | 06/22/1976 |
| 3965187 | Hydrogenation of phenol The catalytic hydrogenation of phenol obtained by the cumene hydroperoxide process is improved by hydrogenating high purity phenol containing not more than 75 ppm of acetol, an impurity found in phenol prepared from cumene. Acetol-free phenol is obtained ... | 06/22/1976 |
| 3964535 | Stopper rod tapping assembly and filament forming process A stopper rod tapping assembly for bottom tapping of a crucible to extrude molten metal through a tapping orifice is described. The stopper rod has an interior vent, providing communication of a pressurized inert gas from above the melt to the tapping ori... | 06/22/1976 |
| 3964976 | Process for cleaning coke oven gas offtakes Process and apparatus for removing carbon deposits from the inner surfaces of a coke oven gas offtake by introducing steam into the gas offtake in an amount and under conditions sufficient to remove at least a portion of said carbon. The steam may be intr... | 06/22/1976 |
| 3961708 | Returnable bottle packing case A packaging device for a fragile article which can be stacked in nested relationship with similar packaging devices when not holding such an article. The packaging device comprises a base insert for holding a lower portion of the fragile article, a base f... | 06/08/1976 |
| 3961814 | Method of joining plastic pipe An improved heat fused pipe assembly joint is provided using an internally positioned fitting having an annular insert portion substantially the same diameter as the internal diameter of the pipe section to be joined and a shoulder portion having a larger... | 06/08/1976 |
| 3962516 | Production of polyester tire yarn An improved polyethylene terephthalate tire yarn is prepared by applying to the yarn a finish composition consisting essentially of a polyalkylene glycol compound having the formula in which R1 and R2 are the same or different lower alkyl... | 06/08/1976 |
| 3962251 | Preparation of flavanthrone pigment A process for producing a new crystalline polymorphic form of flavanthrone is disclosed which comprises treating crude flavanthrone with nitric acid. This new form exhibits only one prominent X-ray diffraction peak between 7.00 and 8.00 dA and only two pr... | 06/08/1976 |
| 3962373 | Compositions of 3,3,3-trifluoro-2-trifluoromethyl propene/vinylidene fluoride copolymer and polytetrafluoroethylene Composition comprising a blend of from about 25 to 99% by weight of a copolymer of 3,3,3-trifluoro-2-trifluoromethyl propene and vinylidene fluoride and correspondingly from about 75 to 1% by weight of a low molecular weight, particulate polytetrafluoroet... | 06/08/1976 |
| 3961024 | Fluoro compound production 1. The process for cleaving substituted ammonia compounds containing nitrogen-hydrogen bonds selected from the group consisting of alkali metal amides, urea, biuret, sulfamide, formamide, hydrazine, ethylenediamine, cyanoguanidine and melamine and fluorin... | 06/01/1976 |
| 3960200 | Apparatus for liquid quenching of free jet spun metal Apparatus is provided whereby filaments of metals may be formed by rapid solidification of a molten jet in a fluid medium. Filaments of metastable alloys such as amorphous metals and filaments of fine grained structure having novel orientation may be obta... | 06/01/1976 |
| 3959382 | Method for reactivating palladium catalysts Palladium catalysts employed in the hydrogenation of reducible cyclic organic compounds containing deleterious nitrogen impurities are reactivated according to a process comprising separating spent catalyst from the hydrogenation reaction mixture; contact... | 05/25/1976 |
| 3958728 | Orthopedic bandage core A fluid dispensing device comprising (a) a housing having a closed end, and opposite open end and fluid release opening extending through the wall of the housing; (b) an inner member adapted to contain a fluid and having one open end, an opposite closed e... | 05/25/1976 |
| 3957223 | Limiter for vehicle safety belt tension-relieving apparatus A limiting device limits the amount of withdrawal of a shoulder belt from a safety belt retractor when a tension-relieving apparatus for the shoulder belt is in operation. The shoulder belt tension-relieving apparatus includes: a tension-relieving locking... | 05/18/1976 |
| 3957504 | Membrane hydro-metallurgical extraction process A system utilizing membrane extraction is provided to recover metal values. The system may be used to separate metal ions from an aqueous solution through the membrane by an organic liquid containing a chelating agent. This invention also contemplates the... | 05/18/1976 |
| 3956410 | Purification of chloronitrosocyclohexane dimer (CNCD) Purification of chloronitrosocyclohexane dimer (CNCD) is effected by dissolving the crude CNCD in a chlorinated aliphatic hydrocarbon or a lower aromatic hydrocarbon solvent and thereafter displacing the solvent of the solution with an aliphatic alcohol o... | 05/11/1976 |
| 3956470 | Pentafluorosulfur hypochlorite Pentafluorosulfur hypochlorite, SF5 OCl, and its preparation by reacting thionyl tetrafluoride, SOF4, or a salt thereof, with an inorganic reagent containing a chlorine atom in a +1 oxidation state which chlorine atom is attached to ... | 05/11/1976 |
| 3956236 | Synergistic compositions for increasing flame resistance of polymers A composition for increasing flame resistance of a step-reaction polymer comprising a metal salt of certain organic acids in combination with certain organic acids or their ammonium salts, the method of treating the step-reaction polymer with the composit... | 05/11/1976 |
| 3956229 | Films and sheets of polyester-polycarbonate blends This invention provides a film or sheet capable of being thermoformed into a shaped article and being formed from a blend of about 60 to 85 parts by weight of a polyethylene terephthalate polymer having an intrinsic viscosity of at least about 0.90 and co... | 05/11/1976 |
| 3956112 | Membrane solvent extraction A membrane solvent extraction system is utilized to separate two substantially immiscible liquids and extract a solute through a solvent swollen membrane from one solvent liquid phase to the extracting solvent liquid without direct contact between the liq... | 05/11/1976 |
| 3956457 | Preparation of sodium carbonate monohydrate Sodium carbonate monohydrate from crude trona is prepared by calcining the crude trona to crude sodium carbonate, dissolving the crude sodium carbonate in an aqueous solution, clarifying and filtering the resulting solution to remove insoluble material to... | 05/11/1976 |
| 3954580 | Processes for decreasing mercury butter formation in mercury electrolytic cells Processes for decreasing mercury butter formation in mercury electrolytic cells employing brine which contains strontium wherein the brine is treated to lower the strontium content to 0.5 ppm or less. The removal of strontium from the brine may be effecte... | 05/04/1976 |
| 3954392 | Copper phthalocyanine N-Di-N-butylaminoalkyl sulfonamide, quaternized solutions of the quaternary compound, and paper dyeing therewith A new dye having a turquoise blue color and high water solubility suitable for dyeing cellulose materials such as paper and textile fibers such as cotton, polyamides and polyacrylonitrile having the formula: ##EQU1## WHEREIN P IS 2 OR 3, M IS 1 THROU... | 05/04/1976 |
| 3954949 | Process for making oxygen difluoride 1. The process for making oxygen difluoride which comprises subjecting alkali metal dioxide in a reaction zone, at temperature substantially in the range of 20°-150° C., to the action of elemental fluorine to effect reaction of fluorine with the alkali ... | 05/04/1976 |
| 3953585 | Manufacture of oxygen difluoride The process of making oxygen difluoride which comprises subjecting alkali metal hyponitrite containing 2-5 oxygen atoms, at temperature not substantially above 40°C., to the action of elemental fluorine in quantity and for a time sufficient to effect rea... | 04/27/1976 |
| 3951682 | Multi-phase rinse and recovery apparatus An and apparatus for removing and recovering contaminating liquid from articles comprising washing the article with a liquid two phase system, one of the phases in the two phase system being immiscible with and preferably insoluble with the contaminating ... | 04/20/1976 |
| 3951789 | Novel high diffusivity membranes Novel membrane compositions are prepared from polymers comprising tertiary amine containing polyamideamine functional groups. The membranes are durable, highly selective and have excellent homogeneity and high diffusivity. Asymmetric membranes can be prep... | 04/20/1976 |
| 3950271 | Nuclear shields Melt-processable nuclear shielding compositions are prepared from chloro-fluoro substituted ethylene polymers, particularly PCTFE and E-CTFE, containing 1-75% by weight of a gadolinium compound.... | 04/13/1976 |
| 3950009 | Pyrotechnic formulation A chemical gas generant mixture of carbon, an oxidizer which does not contain hydrogen and, optionally, a carbonate or other coolant.... | 04/13/1976 |
| 3948461 | Tipping vehicle sensitive retractor A vehicle sensitive safety belt retractor is provided with actuating means responsive to acceleration of the vehicle for directly engaging with ratchet means mounted for interaction with a belt strap reel of the retractor, and thereby preventing protracti... | 04/06/1976 |
| 3948823 | METHOD OF MAKING PERMSELECTIVE INTERPOLYMER MEMBRANES Novel cross-linked interpolymer membranes of substantially improved efficiency and durability are prepared from a co-mixture of a hydrophilic polymer of [1, ω-alkylene(2,6-diketopiperazine)-1,4-dicarboxamide] and a hydrophobic polymer such as polyvinylid... | 04/06/1976 |
| 3947525 | Melt-processable, radiation cross-linkable E-CTFE copolymer compositions Melt-processable, radiation cross-linkable ethylene/chlorotrifluoroethylene copolymer compositions are provided which contain about 0.1 to 5% by weight of the copolymer of a radiation cross-linking promoter, about 0.01 to 5% by weight of an anti-oxidant a... | 03/30/1976 |
| 3947169 | Apparatus for making rods or tubes having a filter Apparatus for producing composite thermoplastic extrusion products comprising first and second extruder barrels communicating with one another so that the output of the first extruder barrel is directed to the input of the second extruder barrel, the outp... | 03/30/1976 |
| 3945932 | Novel trichloromonofluoromethane-alcohol azeotropes A composition which boils at a substantially constant temperature consisting essentially of trichloromonofluoromethane and an alcohol selected from ethanol, isopropanol or mixtures thereof and the process for using the composition in cleaning and lubricat... | 03/23/1976 |
| 3944500 | Production of low bulk density product from sodium bicarbonate Low bulk density products containing at least 10% Wegscheider's Salt (Na2 CO3.3NaHCO.sub.3), by weight, in needlelike form are produced from sodium bicarbonate by heating in two distinct steps an aqueous feed mixture comprising by we... | 03/16/1976 |
