Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 4395505 | Ascension pipe and ascension pipe cap sealers for by-product coke ovens A water-based paste which is curable to a flowing glass which is made generally from boric acid, silica flour, or diatomite silica. Generally, silica flour is added for pipe sealer or diatomite-type silica for cap sealers. Optional additives are latex and... | 07/26/1983 |
| 4395497 | Preparation of electrically conductive soluble heteropolyphenylenes A process for the preparation of electrically conductive heteropolyphenylenes, wherein from 0.5 to 5 per cent by weight of an activating additive is introduced, in the absence of moisture and of oxygen, into a heteropolyphenylene of the general formula ... | 07/26/1983 |
| 4377652 | Polyamide-imide compositions and articles for electrical use prepared therefrom An article for electrical use such as insulative substrates, electrical circuit borads and electrical elements, wholly or partly consisting out of an aromatic polyamide-imide having a reduced viscosity of from about 0.3 to 1.5, which polyamide-imide may c... | 03/22/1983 |
| 4366276 | Flame-resistant moulding materials based on thermoplastic aromatic polyesters and polyesters carbonates, a process for their production and their use in the production of moulded bodies Aromatic polyesters and polyestercarbonates based on diphenols and iso- and/or terephthalic acids become flame-proof if admixed with small quantities of ammonium or alkali metal salts of inorganic or organic acids and optionally halophthalimides and optio... | 12/28/1982 |
| 4360623 | Alkali metal borohydride concentrate useful as a stability improver Concentrates containing from 0.5% to 20% by weight of an alkali metal borohydride, balance essentially inert dry resinous polymer are added to plastics in amounts effective to reduce traces impurities and thereby result in improved heat and light stabilit... | 11/23/1982 |
| 4347165 | Conductor powders Nickel powders having an improved chemical stability are formed by reaction with an electroconductive coating such as a carbide, a silicide, or the like and, also, a reaction with sulfur.... | 08/31/1982 |
| 4335038 | Polycarbonate containing a metal perfluoroborate and an organosilane as ignition depressants A polycarbonate such as a bisphenol-A homopolycarbonate containing amounts of a metal salt of perfluoroborate, e.g., the potassium salt of perfluoroborate and an organosilane, e.g., glycidoxypropyl trimethoxysilane, resists combustion upon exposure to a l... | 06/15/1982 |
| 4316834 | Wear resistant sliding element having a low coefficient of friction A sliding element according to the invention comprises from approximately 30 to approximately 80% of fine and coarse graphite powders, from approximately 0.5 to 30% of lead-containing powder, and from 15 to 45% of an organic resin binder, all percentages ... | 02/23/1982 |
| 4302379 | Wear resistant sliding element having a low coefficient of friction A sliding element according to the invention comprises from approximately 30 to approximately 80% of a graphite powder, from approximately 0.5 to 30% of lead-containing powder, and from 15 to 45% of an organic resin binder, all percentages being by weight... | 11/24/1981 |
| 4292225 | Highly filled thermally conductive elastomers IV A thick, highly filled, shaped elastomeric body comprising a thermally conductive elastomer suitable for high temperature, e.g. 240°-260° C., mechanical applications. The elastomer composition comprises organopolysiloxane, particulates, and a viscosity ... | 09/29/1981 |
| 4259114 | Method for forming silver precipitating nuclei Noble metal silver-precipitating nuclei are prepared by reducing a noble metal salt or complex in the presence of a first polymer with a Sn° colloid formed by the non-aqueous borohydride reduction of a tin salt in the presence of an organic solvent for t... | 03/31/1981 |
| 4248752 | Refractory moldable composition A refractory moldable composition which, upon drying, sets up to refractory shapes which are strongly adherent to the molding surfaces and are essentially crack-free, contains about 45 to about 65% of a liquid vehicle, such as water; about 21 to about 26%... | 02/03/1981 |
| 4242239 | Bondable agar dental impression material A heavy bodied reversible hydrocolloid dental impression material is disclosed. This material comprises agar-agar as the main component in which there is added a small amount of locust bean gum, potassium or zinc sulfate, a borate and nonionic poly(ethyle... | 12/30/1980 |
| 4233077 | Preparing extrudable refractory hard metal-wax blends Extrudable and injection-moldable blends of submicron refractory hard metal powders, i.e., carbides, borides, and nitrides of Groups III-V metals, with solid plasticizers, e.g., paraffin waxes or synthetic resins, are prepared by wetting the refractory po... | 11/11/1980 |
| 4230614 | Stop-off compound and method of making A filler of polyisobutylene dissolved in a solvent is combined with boron nitride to form a stop-off compound used as a parting agent when diffusion bonding metals. A uniform coating of the compound is applied with screen printing methods prior to bonding... | 10/28/1980 |
| 4223100 | Flame retardant aromatic polycarbonate with good mechanical properties and melt stability The present invention is concerned with flame retardant polycarbonate compositions having good mechanical properties and melt stability. These properties are achieved by adding small amounts of a fibril forming polytetrafluoroethylene, and an alkali metal... | 09/16/1980 |
| 4206100 | Resin composition A resin composition consisting essentially of (A) an aromatic copolyester derived from (1) a mixture of terephthalic acid and isophthalic acid and/or the functional derivatives thereof and (2) a bisphenol and/or the functional derivatives thereof; (B) a polyam... | 06/03/1980 |
| 4198322 | One-step curing method for manufacture of neutron absorbing plates A one-step curing method for the manufacture of neutron absorbing articles, such as those of long thin plate form for use in storage racks for spent nuclear fuel, includes curing a mixture of boron carbide particles, phenolic resin in liquid state and phe... | 04/15/1980 |
| 4195002 | Water-dispersible coatings containing boron nitride for steel casting dies A dispersion composition and a method for coating the surface of steel casting dies for molten metals are described. The dispersion composition comprises boron nitride powder dispersed in a peroxide-modified aqueous dispersion of a water-dispersible film-... | 03/25/1980 |
| 4194040 | Article of fibrillated polytetrafluoroethylene containing high volumes of particulate material and methods of making and using same Articles of manufacture having good green strength and low modulii of elasticity, and comprising a matrix of fibrillated polytetrafluoroethylene interconnecting and entrapping a high volume, at least about 85%, of a particulate and preferably a sinterable... | 03/18/1980 |
| 4176093 | Neutron absorbing room temperature vulcanizable silicone rubber compositions A neutron absorbing composition comprising a one-component room temperature vulcanizable silicone rubber composition or a two-component room temperature vulcanizable silicone rubber composition in which the composition contains from 25 to 300 parts by wei... | 11/27/1979 |
| 4174331 | Refractory moldable composition containing ceramic fiber and colloidal silica A refractory moldable composition which, upon drying, sets up to refractory shapes which are strongly adherent to the molding surfaces and are essentially crack-free, contains about 45 to about 65% of a liquid vehicle, such as water; about 21 to about 26%... | 11/13/1979 |
| 4144207 | Composition and process for injection molding ceramic materials Ceramic compositions that may be injection molded and subsequently sintered are described. A particulate ceramic material, such as silicon carbide, is coated with a mixture of thermoplastic resin and oils or waxes, and utilized as a feed material in an in... | 03/13/1979 |
| 4137383 | Process for stabilizing chlorine-containing resins A process for stabilizing a chlorine-containing resin which comprises contacting a chlorine-containing resin with one or more gaseous hydrides. BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a process for stabilizing a chlorine-cont... | 01/30/1979 |
| 4134937 | Polyester resin composition A polyester resin composition having improved neutron shielding properties can be made by mixing a condensation product of maleic anhydride, phthalic anhydride and polyethylene glycol dissolved in styrene, with at least a sufficient amount of pelleted pol... | 01/16/1979 |
| 4129550 | Self-lubricating heat-resistant material and process for manufacturing same A self-lubricating heat-resistant material which, in accordance with the invention, comprises from 20 to 90 percent by weight of a polymer binder, viz. poly(butadiene) with a degree of cross-linking from 30 to 95 percent, and from 10 to 80 percent by weig... | 12/12/1978 |
| 4123414 | Method of manufacturing reinforced phenol resin articles, and products thus obtained Method of manufacturing molded articles of liquid phenol resins or resols, obtained by simultaneously projecting onto a mold surface at least one resin of the aforesaid type, glass reinforcing elements and at least one acid catalyst, as main component ele... | 10/31/1978 |
| 4118364 | Reinforced polyhexamethylene isophthalamide Reinforced amorphous polyamides of isophthalic acid and hexamethylene diamine and articles thereof.... | 10/03/1978 |
| 4080404 | Flame retardant styrenic molding compositions Disclosed herein are polyblend molding compositions which comprise (A) poly(styrene/acrylonitrile/methylmethacrylate) matrix polymer; (B) polychloroprene rubber which is grafted with monomers of the type used to prepare the matrix; (C) a metal oxide; and ... | 03/21/1978 |
| 4064097 | Antifriction polymer material An antifriction polymer material which is a product of hardening of a composition consisting of a filler in amounts of 10-95 wt.% and a binder in amounts of 5-90 wt.%, a mixture of polyphenylenes being used as a binder containing ketal and/or acetyl group... | 12/20/1977 |
| 4051096 | Resin composition This invention relates to a resin composition comprising an oil retainer, a base thermoplastic resin and an oil. The affinity of the oil retainer and base resin to the oil is defined to result in a resin composition which is excellent in moldability, lubr... | 09/27/1977 |
| 4042559 | Abrasion resistant coated abrasive pipe lining sheet A composite abrasion resistant, coated and abrasive containing pipe lining sheet comprises a pipe lining layer consisting from about 30 to about 70% by volume of abrasion resistant abrasive granules (preferably from about 45 to about 55% by volume of sili... | 08/16/1977 |
| 4032509 | Fire retardant styrenic terpolymer compositions Disclosed herein are fire retardant polymer compositions based on interpolymers of styrene, maleic anhydride and a brominated monomer such as tribromophenyl acrylate, which have been formulated with various additives. These compositions, which have a UL-9... | 06/28/1977 |
| 4016111 | Non-burning, class 1 rating, foams and a method of producing same Method of preparing foamed solid aminoformaldehyde furfurylalcohol products by polymerizing a liquid furfurylalcohol containing aminoformaldehyde resin composition in the presence of an acid, characterized in using as a starting material a resin compositi... | 04/05/1977 |
| 4002597 | Smoke retardant vinyl chloride and vinylidene chloride polymer compositions Smoke retardant vinyl chloride and vinylidene chloride polymer compositions are obtained by including therein a synergistic mixture of (A) at least one nickel compound selected from the group consisting of NiCrO4, NiMoO4, Ni2 | 01/11/1977 |
| 3988524 | Powder metallurgy compacts and products of high performance alloys A powder metallurgy compact and a sintered product is provided from high performance alloys difficult to compact and/or sinter. The green compact comprises a mixture of the alloy powder, which, as a result of blending and extruding is coated with a film o... | 10/26/1976 |
| 3983265 | Method of coating a substrate with curable organopolysiloxane compositions Substrates, particularly electronic connections, are protected by coating the substrate with a curable organosilicon composition based on -ω-dihydroxy diorganopolysiloxanes, methyl polysiloxanes, fillers, amino organosilicon cross linking agents a... | 09/28/1976 |
| 3975359 | Smoke retardant vinyl chloride and vinylidene chloride polymer compositions Smoke retardant vinyl chloride and vinylidene chloride polymer compositions are obtained by including therein a synergistic mixture of (A) at least one nickel compound selected from the group consisting of NiCl2, NiCO3 NiMoO4 | 08/17/1976 |
| 3954703 | Composition of poly(meta-phenylene isophthalamide) with additive for fabricating molded article A poly(meta-phenylene isophthalamide) powder is provided which is coalescible under the influence of pressure followed by heating at temperatures below its crystalline melting point to provide molded objects of a solid and homogeneous nature. A process fo... | 05/04/1976 |
| 3944526 | N-cyanosulfonamide resins and intermediates therefor and products thereof This invention provides compositions containing polysulfonamides which are prepared by the addition polymerization of bis-N-cyanosulfonamides. The resins are useful in coating, molding, laminating and casting applications.... | 03/16/1976 |
