Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7893288 | Poly-halogenated triazapentadiene compositions A new class of fluorinated or polyhalogenated triazepentadienes are disclosed. The synthesized triazapentadienes are thermally stable, soluble in typical solvents and have several metal binding sites for complexation with metal ions. The compounds are prepared as co... | 02/22/2011 |
| 7268365 | Volatile copper (II) complexes and reducing agents for deposition of copper films by Atomic Layer Deposition The present invention relates to novel 1,3-diimine copper complexes and the use of 1,3-diimine copper complexes for the deposition of copper on substrates or in or on porous solids in an Atomic Layer Deposition process. ... | 09/11/2007 |
| 7232616 | Organic electroluminescent materials and devices made from such materials A class of organic metal complexes with mixed ligands for organic light emitting diodes are designed and characterized as the formula:(L2L3M)n. In this formula: L2 is a bidentate ligand which has at least one coordinate atom of oxyge... | 06/19/2007 |
| 7223878 | Reduction of concentration of inorganic by-products and organometallic by-products in the preparation of metallocenes and economical recovery of the starting materials used A process for separating inorganic and organometallic by-products from a mixture comprising at least one organometallic transition metal compound as product and at least one organometallic by-product and at least one inorganic by-product as by-products comprises the... | 05/29/2007 |
| 7176158 | Polymerization catalyst composition Copolymerization of Ni(H) or Co(II) acenaphthene diimine complexes containing olefinic substituents on aryl groups in the presence of a free radical initiator results in polymerized late transition metal catalysts which can be used for olefin polymerization or oligo... | 02/13/2007 |
| 7141687 | N'-substituted N-acylamidine metal transition complexes and their use as catalysts The invention relates to N′-substituted N-acylamidine transition metal complexes of the general formula (I), wherein M represents a transition metal, selected from the group of metals including Ni, Cu, Ru, Rh, Pd, Os, Ir and Pt, X represents Cl, Br, triflate, meth... | 11/28/2006 |
| 7094730 | Gas treatment device, methods for making and using the same, and a vehicle exhaust system Gas treatment devices and vehicle exhaust systems are disclosed herein. In one embodiment, the vehicle exhaust system, comprises: an engine, a gas treatment device disposed downstream from the engine, the gas treatment device comprising a housing, a substrate dispos... | 08/22/2006 |
| 7034157 | Catalyst components, process for their preparation and their use as catalyst components in polymerization of olefins Olefin polymerization catalyst precursors are described herein. The precursors are generally characterized by the formula: wherein M is a transition metal selected from groups 8 to 10 of the Periodic Table; n is an inte... | 04/25/2006 |
| 6974878 | Catalyst ligands, catalytic metal complexes and processes using same A new ligands that include a benzene ring in the backbone can be combined with a metal or metal precursor compound or formed into a metal-ligand complex catalyze a number of different chemical transformations, including olefin polymerization reactions. The ligands, ... | 12/13/2005 |
| 6852871 | Method for producing optically active salicylaldimine copper complex There is provided a method for producing an optically active salicylaldimine copper complex, which method is characterized in that an optically active amino alcohol compound represented by the following formula (1) is reacted with copper hydroxide (II) in an organic... | 02/08/2005 |
| 6800774 | Catalysts used for olefine polymerization and the preparation thereof The present invention provides a polynuclear α-diimine Ni(II) complex used as the precursor of the catalyst in polymerizing polyolefine, represented by the following formula: wherein M is Ni; X is Cl or Br; m and n is i... | 10/05/2004 |
| 6780947 | Metal complexes comprising a 2,6-diacylpyridine-ligand and their use in the polymerization of ethylene Organometallic complex having the formula (IAP)M(X)n which can be used for die formation of catalytic systems wherein: M is a metal selected from transition metals and lanthanides, in oxidation state “s” positive and different from zero; each X is ind... | 08/24/2004 |
| 6534657 | Chiral ferrocene phosphines and their use in asymmetric catalytic reactions Ferrocene anchored chiral ligands and metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The metal complexes according to the present invention are useful as catalysts in asymmetric reactions, such as, hydrogenation... | 03/18/2003 |
| 6410766 | Emitting materials used for organic EL based on tridentate ligands A series of emitting materials used for organic EL based on tridentate ligands are characterized as Formula 1, Formula 2 and Formula 3, where: the group O-I-N is a bidentate ligand such as 8-hydroxyquinoline and 2-(o-hydroxyphenyl)-benzoxazole, II, III ar... | 06/25/2002 |
| 6380392 | Ligands based on chiral 2-amino-2'-hydroxy-1,1'-binaphthyl and related frameworks for asymmetric catalysis The present invention includes array of new chiral ligands that are optically active or racemic. These ligands are bidentate, tridentate, tetradentate or pentadentate ligands which include P-P, P-N, N-N, mixed P-N, Schiff base or carbene sites. The presen... | 04/30/2002 |
| 5977393 | Schiff base derivatives of ruthenium and osmium olefin metathesis catalysts The present invention generally relates to ruthenium and osmium carbene catalysts for use in olefin metathesis reactions. More particularly, the present invention relates to Schiff base derivatives of ruthenium and osmium carbene catalysts and methods for... | 11/02/1999 |
| 5800802 | Chelator IDAC-2 A method for removing unbound labeling reagent from a composition comprising bound and unbound labeling reagents in which a chelator-matrix conjugate capable of binding unbound labeling reagent is contacted with a biomolecule labeling reaction mixture, by... | 09/01/1998 |
| 5733341 | Inhibition of dye migration in a wash liquor A process is described for inhibiting the re-absorption of migrating dyes in the wash liquor, comprising introducing into a wash liquor containing a peroxide-containing detergent, from 0.5 to 150, preferably from 1.5 to 75, especially from 7.5 to 40 mg, p... | 03/31/1998 |
| 5686639 | Quinone diimmonium salts and their use to cure epoxies The invention relates to divalent immonium salts which are near infrared dyes of the formula (I). (R2 NAr)2 --N+ .dbd.Ar'.dbd.N+ R2 +2X-(I) wherein: R.dbd.C1 to C6 alkyl; Ar=div... | 11/11/1997 |
| 5599963 | Catalysts for production of ଲ-hydroxy carbonyl compounds The invention relates to catalysts for the synthesis of ଲ-hydroxy carbonyl compounds, and in particular to enantioselective catalysts.... | 02/04/1997 |
| 5514642 | Cyclohexenone oxime ethers, their preparation and their use Cyclohexenone oxime ethers of the formula I ##STR1##... | 05/07/1996 |
| 5440062 | Enantioselective addition of hydrocarbons to alpha,beta-unsaturated carbonyl compounds The conjugate addition of hydrocarbon equivalents to alpha,beta-unsaturated carbonyl compounds using a series of novel catalysts is described. The catalysts comprise copper(I) complexes with ligand systems comprising either tropocoronand macrocycles or N,... | 08/08/1995 |
| 5008415 | Volatile fluorinated ଲ-ketoimines and associated metal complexes Fluorinated ଲ-ketoimine ligands and highly volatile ଲ-ketoiminato metal complexes of the ligands are synthesized by silylating a fluorinated ଲ-diketone to form a silylenolether, and subsequently reacting the silylenolether with a primary... | 04/16/1991 |
| 4962214 | Catalytic enantioselective addition of hydrocarbon equivalents to alpha, beta-unsaturated carbonyl compounds The conjugate addition of Grignard reagents to alpha, beta-unsaturated carbonyl compounds using a series of novel catalysts is described. The catalysts comprise copper(I) complexes with ligand systems comprising either tropocoronand macrocycles or N,N'-di... | 10/09/1990 |
| 4937338 | Pigments Pigment of the general formula: f.Het (I) where F is the cation of a cationic dye which has an absorption maximum at >700 nm and may or may not contain anionic groups and Het is an anion of a heteropolyacid based on tungsten, molybdenum, vanadium or a mixture ... | 06/26/1990 |
| 4909835 | Acylcyclohexanediones and the oxime ethers thereof with herbicidal and plant growth regulating properties The invention relates to novel 2-acyl-1,3-cyclohexanediones and the oxime ethers thereof with herbicidal and plant growth regulating properties. The novel 2-acyl-1,3-cyclohexanediones and the oxime ethers thereof are of the formula I ##STR1## wherein... | 03/20/1990 |
| 4816038 | Metal complexes of mannich bases with a schiff base Metal complexes of hydroxyl- and/or thiol-containing Mannich are prepared by reacting a transition metal-containing agent with an aromatic Mannich. The Mannich is prepared from a substituted hydroxyl- and/or thiol-containing aromatic, an aldehyde or keton... | 03/28/1989 |
| 4791023 | Infrared absorbent and optical material using the same An infrared absorbent comprising -diimine metal complex is disclosed. With the use of the infrared absorbent, there is provided an infrared absorbing material capable of absorbing a near-infrared light having a wavelength of 700-1500 nm and a far-i... | 12/13/1988 |
| 4734515 | 1:2 metal complexes of 2-nitroso-acetoacetic acid and benzoylacetic acid arylamides Complexes of the formula ##STR1## wherein each R1 is independently a monocyclic or fused ring aromatic or heteroaromatic group free of water-solubilizing groups, each R2 is independently is phenyl or methyl, and Me is Ni, Cu, Co or Z... | 03/29/1988 |
| 4677206 | 2-hydroxy ethyl benzyl pyridinium compounds There is described a photographic system wherein development of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound which releases a quaternary in alkaline environment. P... | 06/30/1987 |
| 4655785 | Process for photochemical stabilization of polyamide and polyurethane fiber materials with metal complex compounds A process for the photochemical stabilization of undyed and dyed polyamide or polyurethane fibre material that is characterized in that the fibre material is treated with a water soluble, organic copper, manganese or nickel complex that displays an affini... | 04/07/1987 |
| 4518535 | Preparation of electrically conductive systems from substituted phenalenes, and the products obtained Air-stable, electrically conductive systems having conductivities greater than 1×10-3 Ω-1 cm-1 are prepared by reacting a metal cation of an element of sub-group VII, VIII or I of the periodic table with a 1,9-substitute... | 05/21/1985 |
| 4481278 | Chrome complexed dye developer compounds and photographic products and processes Novel chrome complexed azo and azomethine yellow dye developers which include a substantially colorless symmetrical ligand. Also disclosed are photographic products and processes which utilize the dye developers.... | 11/06/1984 |
| 4423226 | Zinc chloride complex compounds Zinc chloride complex compounds to which the structure of the general formula (1) ##STR1## can be assigned, in which the individual radicals in the formula have the following meanings: Rhu 1 is a hydrogen atom or an optionally substituted lower ... | 12/27/1983 |
| 4404136 | Chrome complexed azo or azomethine hexadentate dyes Chrome-complexed hexadentate dyes which include an ortho, ortho-dihydroxy azo or azomethine dye moiety, a colorless ligand which is a radical of an iminodiacetic acid and a linkage connecting the ligand to the dye moiety. In one embodiment the dyes includ... | 09/13/1983 |
| 4373079 | Layered or amorphous cyclic organometallic inorganic polymers Inorganic polymeric compounds which contain pendant organic functional groups are prepared by the reaction of an acid of the formula [(HO)2 OZOx ]k R, in which Z is a pentavalent atom, x is 0 or 1, k is 1 or 2, and R is a ... | 02/08/1983 |
| 4351949 | Bicyclic prostaglandin analogs and method of synthesis New organopalladium reactions involving the addition of pi-allylpalladium compounds to strained bicyclic alkenes, and subsequent chain extension reactions employing the chemistry of organopalladium compounds are disclosed. By these techniques a large numb... | 09/28/1982 |
| 4318849 | Novel metallized dyes, their manufacture and use The present invention relates to copper, nickel, chromium or cobalt complexes of azo or azomethine dyes which contain a group of the formula wherein Z is a bridge member of the formula ##STR1## wherein R1 is hydrogen or a low molecular alkyl gr... | 03/09/1982 |
| 4280963 | Manganese complexes of salicylaldehyde-alkanolimines as catalysts for the polymerization of 2,6-di-substituted phenols A novel catalyst is disclosed that is useful in the oxidative coupling of phenolic monomers. The catalyst is a manganese chelate that is derived from a salicylaldehyde-alkanolimine.... | 07/28/1981 |
| 4266945 | Molybdenum-containing compositions and lubricants and fuels containing them Molybdenum-containing compositions are prepared by the reaction of an acid of molybdenum or salt thereof, phenol or aldehyde condensation product therewith, and a primary or secondary amine. The preferred amines are diamines such as tallow-substituted tri... | 05/12/1981 |
