Bizarre Patents
A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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 |
| 7279139 | Agitation type powder dissolving apparatus for reprocessing spent nuclear fuel An agitation type powder dissolving apparatus comprises a dissolving tank into which powder of spent nuclear fuel is to be supplied, an agitating member rotatably disposed in the dissolving tank, and rise inhibiting structure, disposed in the dissolving tank above t... | 10/09/2007 |
| 7256152 | Composition of catalyst and solvent and catalysis processes using this composition A composition defined: either as comprising at least one Broensted acid, designated HB, dissolved in a liquid medium with an ionic nature of general formula Q+A−, in which Q+ represents an organic cation and A− represents an an... | 08/14/2007 |
| 6852661 | Catalyst comprising a metal complex of the VIII subgroup based on a phosphine amidite ligand and its utilization for hydroformylation and hydrocyanation A catalyst comprising at least one complex of a metal of transition group VIII comprising at least one monodentate, bidentate or multidentate phosphinamidite ligand in which the phosphorus atom and the oxygen atom of the phosphinamidite group form part of a 5- to 8-... | 02/08/2005 |
| 6849769 | Method for the continuous hydroformylation of polyakenes having 30 to 700 carbon atoms Essentially monounsaturated polyalkylenes having from 30 to 700 carbon atoms are continuously hydroformylated by a process in which i) a hydroformylation-active cobalt carbonyl catalyst is prepared from a catalyst precursor dissolved in an aqueous phase in the absen... | 02/01/2005 |
| 6278030 | Process for preparing alcohols by the Oxo process An improved process for preparing alcohols by the Oxo process. More particularly this invention relates to an improvement in the hydrogenation step of the Oxo process characterized in the use of certain bulk multimetallic hydrogenation catalysts comprised... | 08/21/2001 |
| 5986145 | Purification of 3-hydroxy-propanal Cobalt or rhodium carbonyl compounds are removed from an aqueous solution of 3-hydroxypropanal by a process comprising the steps of: (a) contacting the 3-hydroxypropanal solution with oxygen under acidic conditions at a temperature within the range of about 5 ... | 11/16/1999 |
| 5789624 | Synthesis of and hydroformylation with fluoro-substituted bidentate phosphine ligands Hydroformylation of alkenes to aldehydes in the presence of a rhodium complex catalyst is improved by the addition of a novel bidentate ligand of the formula ##STR1## wherein R1, R2, R1 ' and R2 ' are organ... | 08/04/1998 |
| 5488175 | Hydroformylation process A process for the hydroformylation of unsaturated compounds containing a group C.dbd.C.dbd.C--OH, in the presence of a catalyst system containing rhodium and a ligand of the formula R1 R2 P--R--NR3 R4 wherein R | 01/30/1996 |
| 4983564 | Method of making crosslinked layered compounds The instant invention relates to a method for converting phosphorus containing polymers from a two dimensional layered structure into a three dimensional structure by crosslinking such layers. The method and the resulting crosslinked polymers may be used ... | 01/08/1991 |
| 4710587 | Process for removing triorganophosphine from an organic liquid A process for selectively removing alkyl substituted phosphine from an organic liquid containing same and triarylphosphine by treating said liquid with phosphoric acid.... | 12/01/1987 |
| 4402860 | Process for demetallizing primary products of the oxo synthesis An improved process for de-cobaltizing the primary product of an oxo synthesis is disclosed wherein the primary product is contacted with steam introduced into a vessel to which the primary oxo product is introduced but initially maintained in out of cont... | 09/06/1983 |
| 4323698 | Resin-metal compound complex for catalyzing chemical reactions This specification discloses an insoluble resin-metal compound complex, the method for its preparation, and its use in carrying out a catalyzed reaction. The complex is a weak base anion exchange resin which has been contacted with a solution of a coordin... | 04/06/1982 |
| 4292448 | Process for the hydroformylation of olefins A process for the hydroformylation of an olefin, comprising reacting the olefin with carbon monoxide and hydrogen in a catalyst liquid containing a Group VIII noble metal-triarylphosphine complex catalyst, excess triarylphosphine and a reaction solvent to... | 09/29/1981 |
| 4216344 | High molecular weight polyol mixtures The present invention describes the production of high molecular weight polyhydric alcohols and their derivatives. In particular the urethane reaction products of polyisocyantes and polyhydric alcohols are described.... | 08/05/1980 |
| 4216343 | High molecular weight polyhydric alcohols The present invention describes the production of high molecular weight polyhydric alcohols and their derivatives. In particular the urethane reaction products of polyisocyantes and polyhydric alcohols are described.... | 08/05/1980 |
| 4209467 | Hydroformylation process A hydroformylation process in which the catalyst is the reaction product of a cobalt carbonyl compound with a nitrogen-containing heterocyclic compound having an enolic hydroxyl group on the carbon atom adjacent to the ring-forming nitrogen atom or the ca... | 06/24/1980 |
| 4143075 | Control of condensation products in hydroformylation process Hydroformylating alpha-olefins in a cyclic homogeneous liquid phase process utilizing a modified rhodium catalyst in which iron is introduced into the reaction as a contaminant thereof, the improvement which comprises controlling the degree of condensatio... | 03/06/1979 |
| 4135911 | Rhodium recovery from hydroformylation still heel with triaryl phosphite ligand A process for recovering rhodium present in a still heel from the hydroformylation of an unsaturated hydrocarbon wherein rhodium and a triaryl phosphite ligand were used by a process comprising (a) pretreating the still heel with a compatible organic solvent o... | 01/23/1979 |
| 4113754 | Isolation and regeneration of rhodium-containing catalysts from distillation residues of hydroformylation reactions The isolation and regeneration of catalysts of type I or II where the R's are identical or different hydrocarbon radicals, to give the catalysts in a pure form, is effected by regenerating aqueous rhodium salt solutions, as obtained on treating distillation re... | 09/12/1978 |
| 4013584 | Processes for regenerating dispersions of ligand-stabilized, palladium and platinum (II) halide complexes used in carbonylation and hydroformylation catalysis This invention concerns chlorinating processes for the regeneration of carbonylation and hydroformylation catalysts consisting of dispersions of ligand-stabilized palladium(II) and platinum(II) halide complexes in quaternary ammonium, phosphonium and arso... | 03/22/1977 |
| 4013583 | Processes for regenerating dispersions of ligand stabilized, palladium and platinum (II) halide-complexes used in carbonylation and hydroformylation catalysts This invention concerns using mineral acid treatment for the regeneration of carbonylation and hydroformylation catalysts consisting of dispersions of ligand-stabilized palladium(II) and platinum(II) halide complexes in quaternary ammonium, phosphonium an... | 03/22/1977 |
| 3993695 | Process for the separation of cobalt from primary products of the oxo-synthesis and recirculation thereof to the synthesis stage A process for the separation of cobalt from the primary products of the Oxo-synthesis, which products contain dissolved cobalt-carbonyl compounds, which comprises adjusting the sulfur content of the primary products so that the sulfur content is at least ... | 11/23/1976 |
| 3941848 | Manufacture of predominantly straight-chain aldehydes An improvement in the process for the manufacture of predominantly straight-chain aldehydes by hydroformylation of olefinically unsaturated compounds of 2 to 20 carbon atoms with carbon monoxide and hydrogen in which, in a first stage, aqueous cobalt solu... | 03/02/1976 |
| 3932523 | Process for preventing the formation of an emulsion when working up reaction mixtures containing butyraldehydes and cobalt The formation of an emulsion when working up reaction mixtures containing butyraldehydes and cobalt is avoided by a treatment with gases containing molecular oxygen in an aqueous acid medium at an elevated temperature, at least twice the amount of molecul... | 01/13/1976 |
