| Patent Number |
Title Of Patent |
Date Issued |
| RE33797 |
Novel polyimidesiloxanes and methods for their preparation and use |
January 14, 1992 |
| Substantially fully imidized polyimidesiloxanes which are based on a selected pyridine compound are soluble in diglyme which gives them particular utility in the micro-electronics industry. The polymers are prepared from the dianhydride, a difunctional siloxane monomer and an organic |
| H992 |
Preparation of fluorobenzenes by the decarboxylation of fluorophthalic acids or benzoic acids |
November 5, 1991 |
| Polyfluorobenzenes are prepared by the decarboxylation of polyfluorophthalic acids or polyfluorobenzoic acids, in the presence of a Cu, CuO or Cu.sub.2 O catalyst in either quinoline or N-methyl-2-pyrrolidone as a solvent. |
| D373564 |
Hopper car catch bag |
September 10, 1996 |
|
| 6638354 |
Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash sol |
October 28, 2003 |
| Disclosed are amorphous precipitated silicas, silica gels, and amorphous carbons derived from biomass and methods of producing them with and without adhered or deposited amorphous carbons produced by acidifying a caustic silicate solution produced by caustic digestion of biomass ash |
| 6608115 |
Polyvinyl chloride resins and method of preparation and use in the production of whitened polyvi |
August 19, 2003 |
| Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur compounds selected from sulfonic acid derivatives, sulfinic acid derivatives, and mercapto |
| 6605649 |
Method of production of whitened polyvinyl chloride foam |
August 12, 2003 |
| Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur compounds selected from sulfonic acid derivatives, sulfinic acid derivatives, and mercapto |
| 6506854 |
Inhibiting scale in vinyl monomer polymerization |
January 14, 2003 |
| Disclosed is a solution that comprises (A) a solvent; (B) about 0.001 to about 20 wt % of a terpolymer that comprises the condensation reaction product of (1) an aromatic compound that contains a benzene or naphthalene ring substituted with the group OR or SR, where R is hydrogen, a |
| 6500873 |
Polyvinyl chloride resins and method of preparation and use in the production of whitened polyvi |
December 31, 2002 |
| Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur compounds selected from sulfonic acid derivatives, sulfinic acid derivatives, and mercapto |
| 6462153 |
Method of polymerizing vinyl chloride monomer |
October 8, 2002 |
| Disclosed is a catalyst composition and a method of polymerizing vinyl chloride using it. The catalyst composition is a mixture of a vanadyl (V) catalyst having the formula ##STR1##and about 0.5 to about 15 moles of an alkyl aluminum cocatalyst having the formulaper mole of said cata |
| 6451904 |
Preparing sterile articles from polymers containing a stabilizer based on a poly (oxyalkylene) |
September 17, 2002 |
| Novel polymer stabilizers are disclosed. The novel stabilizers have the general formula (R).sub.q Sn-(MR"-OCH.sub.2 -R'CH].sub.m -OT).sub.4-q, P-[(OCH.sub.2 -R'CH).sub.m OT].sub.3' ##STR1##wherein M is O or S and R"is (CH.sub.2).sub.p CO-, CO-(CH.sub.3).sub.p, or CO(CH.sub.2).sub.p - |
| 6447157 |
Transportation of soluble solids |
September 10, 2002 |
| Disclosed is an agitator assembly which comprises an agitator and means for mounting the agitator assembly on top of a tank. The agitator comprises a shaft, a propeller fixed to one end of the shaft, and means for rotating the shaft to provide an axial discharge from the propeller of at |
| 6414076 |
Method of predetermining the gloss of PVC compounds |
July 2, 2002 |
| A method of making an article from polyvinyl chloride compound that has a predetermined amount of gloss is disclosed. Samples of the resin are prepared that have different molecular weight distributions. Articles are made from the samples and the gloss of the articles is measured. The |
| 6375735 |
Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash sol |
April 23, 2002 |
| Disclosed are amorphous precipitated silicas, silica gels, and amorphous carbons derived from biomass and methods of producing them with and without adhered or deposited amorphous carbons produced by acidifying a caustic silicate solution produced by caustic digestion of biomass ash |
| 6313337 |
Method of making benzoyl halides and nitriles |
November 6, 2001 |
| A method of making a benzoyl halide is disclosed. Into a reactor is placed a reaction mixture of a benzotrihalide and a benzaldehyde having the respective general formulas ##STR1##where each A is independently selected from halogen, CF.sub.3, R, or OR, each B is independently selecte |
| 6303812 |
Isolation of products from selective dehalogenation of haloaromatics |
October 16, 2001 |
| Disclosed is a method of isolating the aromatic product formed when a substrate having the general formula ##STR1##is dehalogenated, forming a product mixture of copper salts and aromatic product, where X is the halogen removed from the substrate to form the aromatic product, R' is C |
| 6300427 |
Inhibiting scale in vinyl monomer polymerization |
October 9, 2001 |
| Disclosed is a method of inhibiting the formation of scale on reactor surfaces in contact with a polymerizing vinyl monomer comprising contacting said monomer with a terpolymer which comprises the condensation reaction product of(A) an aromatic compound that contains the group ##STR1 |
| 6284934 |
Reducing meta content of isomeric mixtures of halo substituted alkylbenzenes |
September 4, 2001 |
| Disclosed is a method of separating the meta isomer of a haloalkylbenzene having the general formula ##STR1##from a mixture with at least one other isomer, where X is Cl or Br and R is alkyl from C.sub.2 to C.sub.12 or cycloalkyl from C.sub.3 to C.sub.8. About 0.0001 to about 5 wt % |
| 6276825 |
Transportation of soluble solids |
August 21, 2001 |
| Disclosed is an agitator assembly which comprises an agitator and means for mounting the agitator assembly on top of a tank. The agitator comprises a shaft, a propeller fixed to one end of the shaft, and means for rotating the shaft to provide an axial discharge from the propeller of at |
| 6258910 |
Polymerizing vinyl chloride in carbon dioxide |
July 10, 2001 |
| Disclosed is a method of polymerizing vinyl chloride or vinylidene chloride monomer. A mixture is prepared of(1) a monomer selected from the group consisting of vinyl chloride, vinylidene chloride, and mixtures thereof with up to about 20 wt % of a comonomer,(2) supercritical carbon diox |
| 6225514 |
Ring halogenation of aromatic compounds |
May 1, 2001 |
| Disclosed is a method of halogenating the ring of an aromatic compound. The aromatic compound is contacted with a halogenating agent in the presence of a heterogeneous catalyst. The catalyst is the calcination reaction product of:(A) 51 to 99 wt % of a support which comprises at least on |
| 6222079 |
Method of increasing certain isomeric ratios in chlorinating substituted benzenes |
April 24, 2001 |
| Disclosed is a method of increasing the percentage of certain isomers made when di or tri-substituted benzenes are chlorinated in the presence of a Friedel-Crafts catalyst. The use of about 0.001 to about 1 wt % a cocatalyst during chlorination alters the isomeric ratio of the product |
| 6222078 |
Method of making .alpha.-chloro-.alpha.,.alpha.-difluoro aromatic compounds |
April 24, 2001 |
| Disclosed is a method of making an .alpha.-chloro-.alpha.,.alpha.-difluoro aromatic compound. An .alpha.,.alpha.,.alpha.-trichloro aromatic compound having the general formula ##STR1##where Y is C or N, R is halogen, R', amino, NHR', NR'.sub.2, OR', OCF.sub.3, or nitro, R' is alkyl f |
| 6218496 |
Polyimidesiloxane adhesive |
April 17, 2001 |
| Disclosed is a polyimidesiloxane adhesive made by reacting in a solution of an organic solvent a dianhydride selected from the group consisting of biphenyl dianhydride and oxydiphthalic anhydride with an approximately stoichiometric amount of a diamine. The diamine is a mixture of about |
| 6218486 |
Method of polymerizing vinyl chloride monomer using an organocobalt (III) catalyst |
April 17, 2001 |
| Disclosed is a method of polymerizing vinyl chloride monomer using a catalyst having the general formula ##STR1##where L is a ligand covalently bonded to the cobalt atom, each D is independently selected from donor ligands, R is hydrogen, hydrocarbon from C.sub.1 to C.sub.30, or hydr |
| 6211399 |
Pressurized chlorination and bromination of aromatic compounds |
April 3, 2001 |
| Disclosed is a method of adding 1 to 4 chlorine or bromine atoms to an aromatic ring of compound that has at least one electron-withdrawing groups on that ring. The aromatic compound is reacted with a chlorinating agent or a brominating agent in the presence of about 0.1 to about 10 mole |
| 6207177 |
Monosodium cyanuric acid slurry |
March 27, 2001 |
| Disclosed is a stable gel-like slurry having a pH of about 6.5 to about 8.5 which is a mixture of water and about 20 to about 50 wt % sodium cyanurate. Also disclosed is a method of making a water-monosodium cyanurate hydrate gel-like slurry. A slurry is formed in water of about 20 t |
| 6201161 |
Method of reducing benzaldehyde or benzotrihalide content in a mixture |
March 13, 2001 |
| Disclosed is a method of removing about 0.05 to about 20 mole % of a benzaldehyde or benzotrihalide from a mixture with a liquid compound that boils within about -10 to about .+-.5.degree. C. of the boiling point of the benzaldehyde or benzotrihalide. To the mixture is added a benzot |
| 6201152 |
Method of making 3,5-dichloro-p-toluoyl chloride |
March 13, 2001 |
| Disclosed is a method of making 3,5-dichloro-p-toluoyl chloride. A mixture is prepared of methyl-3,5-dichloro-4-methylbenzoate, about 1 to about 1.4 equivalents of an .alpha.,.alpha.,.alpha.-trichloromethylbenzene, and about 0.01 to about 0.2 equivalents of a catalyst selected from the g |
| 6174415 |
Chlorinating side chains of aromatic compounds |
January 16, 2001 |
| Disclosed is a method of chlorinating the side chains of an aromatic compound having the general formula ##STR1##where each R is independently selected from R' or OR', each R' is independently selected from alkyl from C.sub.1 to C.sub.6, and n is an integer from 1 to 3. Some of the a |
| 6171569 |
Method of eliminating malodors from gases |
January 9, 2001 |
| Disclosed is a method of eliminating the odor from a malodorous gas, where the odor is due to the presence of a C.sub.10 to C.sub.18 fatty acid in the gas. An aqueous solution containing at least a stoichiometric amount of a base that reacts with said C.sub.10 to C.sub.18 fatty acid to p |
| 6166272 |
Molybdenum trioxide catalyzed fluorination reactions |
December 26, 2000 |
| Disclosed is a method of fluorinating a substrate having the general formula ##STR1## where each R is independently selected from halogen, alkyl from C.sub.1 to C.sub.12, aryl from C.sub.6 to C.sub.12, alkoxide from C.sub.1 to C.sub.12, aryloxide from C.sub.6 to C.sub.12, nitro, |
| 6165426 |
Method of purifying liquid products by removing soluble antimony compounds therefrom |
December 26, 2000 |
| Disclosed is a method of removing a soluble antimony compound from a liquid in which it is dissolved. The liquid is contacted with a hydrated compound, particularly a hydrated compound that forms carbonate ions, bicarbonate ions, or both in the liquid, such as carbonic acid or hydrates |
| 6162952 |
Production of mercaptans using heterogeneous acidic catalysts |
December 19, 2000 |
| Disclosed is a method of making a mercaptan by reacting hydrogen sulfide with an olefin in the presence of a heterogeneous acidic catalyst. The catalyst can be made by calcining a mixture of a hydroxide, such as Zr(OH).sub.4 or Ti(OH).sub.4, with an acidic site donor, such as H.sub.2 |
| 6156945 |
Method of making high purity 2,4- and 3,4-dichlorotoluene |
December 5, 2000 |
| Disclosed is a method of making high purity 2,4- and 3,4-dichlorotoluene from parachlorotoluene that contains some metachlorotoluene. About 0.0001 to about 5 wt % of a Friedel-Crafts catalyst and about 0.5 to about 10 equivalents of a brominating agent are added to the parachlorotoluene. |
| 6156820 |
Polyamideimidesiloxane hot melt adhesive |
December 5, 2000 |
| Disclosed is a solution of a hot melt adhesive which comprises an organic solvent and a fully imidized polyamideimidesiloxane. The polyamideimidesiloxane is the reaction product of dianhydride monomer with diamine monomer. About 0.5 to about 30 mole % of the monomers are siloxane-con |
| 6156185 |
Reactivation of deactivated anodes |
December 5, 2000 |
| Disclosed is a method of reactivating a deactivated anode that has a coating of a noble metal or noble metal oxide on a substrate. A coating of a noble metal is deposited on the anode electrolessly. The noble metal in the deposited coating can be platinum, palladium, iridium, rhodium, |
| 6153810 |
Highly selective process for making o-arylbenzonitriles |
November 28, 2000 |
| Disclosed is a method of making an o-arylbenzonitrile by reacting o-chlorobenzonitrile with a substituted phenylzinc halide. The reaction is performed in the presence of a nickel catalyst, an ethereal solvent, and N-methylpyrrolidinone as a cosolvent. |
| 6130361 |
Reducing meta content of isomeric mixtures of halo substituted toluenes |
October 10, 2000 |
| Disclosed is a method of separating the meta isomer of a halotoluene having the general formula ##STR1## from a mixture with at least one other isomer, where X is Cl or Br. About 0.0001 to about 5 wt % of a Friedel-Crafts catalyst is added to the mixture and the mixture is expose |
| 6124512 |
Ring halogenation of aromatic compounds |
September 26, 2000 |
| Disclosed is a method of halogenating the ring of an aromatic compound. The aromatic compound is contacted with a halogenating agent in the presence of a heterogeneous catalyst. The catalyst is the calcination reaction product of:(A) 51 to 99 wt % of a support which comprises at least on |
| 6118028 |
Method of making trifluoromethoxybenzenes |
September 12, 2000 |
| Disclosed is a process for making an .alpha.,.alpha.,.alpha.-trifluoromethoxybenzene by reacting an .alpha.,.alpha.,.alpha.-trichloromethoxybenzene or an .alpha.,.alpha.,.alpha.-tribromomethoxybenzene with gaseous hydrogen fluoride in the presence of a catalyst of antimony pentachlor |
| 6118018 |
Chlorination and bromination of aromatic compounds at atmospheric pressure |
September 12, 2000 |
| Disclosed is a method of adding 1 to 4 chlorine or bromine atoms to an aromatic ring of compound that has at least one electron-withdrawing groups on that ring. The aromatic compound is reacted with a chlorinating agent or a brominating agent in the presence of about 0.1 to about 10 mole |
| 6117278 |
Method of making .alpha.-chloroxylenes |
September 12, 2000 |
| Disclosed is a method for making high purity .alpha.-chloroxylenes. A composition is formed of about 15 to about 80 wt % of a xylene and about 20 to about 85 wt % of a solvent. The solvent can be toluene, ring halogenated toluene, benzotrichloride, ring halogenated benzotrichloride, |
| 6114584 |
Method of preparing brominated substituted anilines |
September 5, 2000 |
| Disclosed is a method of preparing brominated substituted anilines. A mixture in water is formed of a substituted aniline having the general formula ##STR1## where each R is independently selected from halogen, alkyl and haloalkyl from C.sub.1 to C.sub.12, aryl, alkaryl, and aral |
| 6114476 |
Inhibiting scale in vinyl monomer polymerization |
September 5, 2000 |
| Disclosed is a method of inhibiting the formation of scale on reactor surfaces in contact with a polymerizing vinyl monomer comprising contacting said monomer with a terpolymer which comprises the condensation reaction product of(A) an aromatic compound that contains the group ##STR1 |
| 6113852 |
Method of preparing a sterile medical article |
September 5, 2000 |
| Disclosed is a method of preparing a sterile medical article. A poly(vinyl chloride) or polyvinylidene chloride polymer is produced that contains about 0.001 to about 5 wt % of a metal complex having at least one anionic ligand that has at least one resonance structure in which the charg |
| 6080915 |
Constructs encoding degradation enzymes for aromatic compounds and transgenic plants containing |
June 27, 2000 |
| Disclosed is a plant transformation construct comprising DNA having(1) a ring-opening gene that encodes an enzyme that can open an aromatic ring,(2) upstream of the ring-opening gene, a eukaryotic promoter, and(3) downstream of said ring-opening gene, a polyadenylic acid addition site.Also d |
| 6068241 |
Non-slipping pulley |
May 30, 2000 |
| Disclosed is a pulley that comprises a metal bearing with an elastomeric material on its outer rim molded into a polymeric wheel, where the coefficient of thermal expansion of the polymeric wheel is at least 1.0.times.10.sup.-6 cm/cm/.degree.C. greater than the coefficient of thermal |
| 6066710 |
Imide-containing polymers made by bulk polymerization |
May 23, 2000 |
| Disclosed is a method of making an imide-containing polymer by bulk or melt polymerizing monomers. A mixture is formed of (1) a cyclic compound that contains an anhydride group and a second group which is an anhydride, a carboxylic acid, or an ester and (2) a diamine in an amount stoichi |
| 6063344 |
Removing anions from alkaline silicate solutions |
May 16, 2000 |
| A method of removing HMO.sub.2.sup.- anions from an aqueous silicate solution comprising contacting the solution with a cationic ion exchange resin, where M is manganese, zinc, copper, nickel, or a mixture thereof. The method is particularly applicable to solutions of sodium silicate or |
| 6063162 |
Method of separating chlorine from a mixture of gases |
May 16, 2000 |
| Disclosed is a method of removing chlorine from a mixture of gases. The mixture of gases is contacted with dichlorotoluene, whereby chlorine in the mixture of gases is absorbed by the dichlorotoluene. The dichlorotoluene is separated from the mixture of gases and is heated to desorb |
