| Patent Number |
Title Of Patent |
Date Issued |
| 5733497 |
Selective laser sintering with composite plastic material |
March 31, 1998 |
| A composite powder specially adapted for use in selective laser sintering is disclosed. The composite powder includes a polymer powder dry mixed with a reinforcement powder, where the polymer powder has a melting temperature substantially lower than that of the reinforcement powder. In |
| 5527877 |
Sinterable semi-crystalline powder and near-fully dense article formed therewith |
June 18, 1996 |
| A laser-sinterable powder product has been prepared having unique properties which allow the powder to be sintered in a selective laser sintering machine to form a sintered part which is near-fully dense. For most purposes, the sintered part is indistinguishable from another part hav |
| 5342919 |
Sinterable semi-crystalline powder and near-fully dense article formed therewith |
August 30, 1994 |
| A laser-sinterable powder product has been prepared having unique properties which allow the powder to be sintered in a selective laser sintering (SLS) machine to form a sintered part which is near-fully dense. For most purposes, the sintered part is indistinguishable from another pa |
| 5304329 |
Method of recovering recyclable unsintered powder from the part bed of a selective laser-sinteri |
April 19, 1994 |
| This method teaches how to recover and reuse a powder of a thermally degradable material which is used in a selective laser sintering (SLS) process. To recycle such a laser-sinterable powder successfully in a SLS machine it is protected against degradation by cooling the hot bed while |
| 5210358 |
Catalyst composition and process for the preparation of ethylene from ethane |
May 11, 1993 |
| Solid solution catalyst in particulate form consisting of attrition resistant .alpha.-Al.sub.2 0.sub.3 particles with 0.5 to 10% by weight, expressed as the oxide, of iron cations substituted for aluminum cations in said catalyst support stabilized with 0.5 to 10% by weight, expressed |
| 5178938 |
Composition for adhesion of polyurethane-coated nylon fabrics |
January 12, 1993 |
| Aromatic mono-, di-, or trihydroxy compounds are used alone or containing peel strength-improving additives, in association with a polyurethane adhesive, for adhering a polyurethane-coated nylon fabric to another polyurethane-coated nylon fabric to form a polyurethane-coated nylon co |
| 5112793 |
Catalyst composition for the preparation of ethylene from ethane |
May 12, 1992 |
| Solid solution catalyst in particulate form consisting of attrition resistant .alpha.-Al.sub.2 O.sub.3 particles with 0.5 to 10% by weight, expressed as the oxide, of iron cations substituted for aluminum cations in said catalyst support stabilized with 0.5 to 10% by weight, expressed |
| 5037794 |
Attrition resistant catalyst support |
August 6, 1991 |
| Alpha-alumina particles having a combination of low attrition, thermal stability and fluidizability are disclosed. The alpha-alumina particles are characterized by being devoid of crystalline grain boundaries. The particles are useful as support or carriers for a wide variety of cata |
| 5008225 |
Catalytic dehydrohalogenation catalyst |
April 16, 1991 |
| The invention is an improved catalyst and process for the manufacture of vinyl chloride from ethylene dichloride. Specifically, the invention is an improved catalyst for the catalyzed dehydrohalogenation of ethylene dichloride in the presence of oxygen. The catalyst comprises a rare eart |
| 4874858 |
Triazine-containing multisilane coupling agents for coating glass fibers, for adhesives, and for |
October 17, 1989 |
| At least three, and as many as eighteen, most preferably at least nine, crosslinking sites are provided through the alkoxy groups in multiple chains on a triazine ring (hence "multisilane"), on a single molecule of the multisilane. The multisilane, useful as a coupling agent, is formed b |
| 4801627 |
Glass fiber reinforced vinyl chloride polymer products and process for their preparation |
January 31, 1989 |
| Vinyl chloride (VC) resins, particularly poly(vinyl chloride) (PVC) and chlorinated poly(vinyl chloride) (CPVC) are reinforced with glass fibers which have been sized with a particular aminosilane coupling agent and a particularly characterized basic film former. At the processing te |
| 4485081 |
Hydrogen chloride recovery process |
November 27, 1984 |
| Oxidation of chlorinated hydrocarbons ("CHC") is effected in a fluidized bed of alumina catalyst-support on which is deposited a "soft" metal as the active catalytic ingredient, and the bed is fluidized with a nitrogen-free oxygen-containing stream of HCl gas, in conjunction with ste |
| 4339620 |
Copper-catalyzed fluid-bed ethylene oxhydrochlorination process |
July 13, 1982 |
| There is disclosed a method and composition for improving the fluidization characteristics and alleviating or inhibiting stickiness in a supported cupric chloride catalyst used as fluid bed catalyst in oxyhydrochlorinations reactions. The method involves the in situ preparation of th |
| 4226798 |
Method of selecting operation of a fluid-bed reactor and apparatus for doing so |
October 7, 1980 |
| A method is disclosed for using a pendulum viscometer having damped torsional oscillations, in a laboratory catalytic fluid-bed reactor, to monitor a propensity to stick which is exhibited by certain supported catalysts. A fluid-bed of such catalysts has been found to become suddenly |
| 4159968 |
Catalyst for the preparation of ethylene and vinyl chloride from ethane |
July 3, 1979 |
| Ethane is reacted with oxygen and a chlorine source in the presence of a solid solution catalyst containing iron cations stabilized with lanthanum and/or lanthanides to yield ethylene, vinyl chloride, and other valuable by-products. Conversion of ethane to products approaches 100 percent |
| 4158645 |
Catalyst for the preparation of ethylene and vinyl chloride from ethane |
June 19, 1979 |
| Ethane is reacted with oxygen and a chlorine source in the presence of a solid solution catalyst containing iron cations which is stabilized with lanthanum and/or lanthanides and modified with selected metal cations, to yield ethylene, vinyl chloride, and other valuable by-products. Conv |
