| Patent Number |
Title Of Patent |
Date Issued |
| RE32606 |
Process for the complete bromination of non-fused ring aromatic compounds |
February 16, 1988 |
| There is disclosed a process for the preparation of completely brominated derivatives of aromatic compounds comprising one or more phenyl groups which may contain substituents, side chains or be partially-brominated. The complete bromination is effected by utilizing liquid bromine as a |
| H579 |
Highly flame retarded flexible polyvinyl chloride compositions and methods for producing same |
February 7, 1989 |
| Flexible polyvinyl chloride resin compositions combining a high degree of flame retardancy and thermal stability comprise di-2-ethylhexyl tetrabromophthalate and an optional flame retardant enhancing agent. |
| 7390839 |
Blends of alkyl substituted triaryl phosphate esters with phosphorus-containing flame retardants |
June 24, 2008 |
| Flame retardant flexible polyurethane foam compositions, methods of flame retarding flexible polyurethane foam compositions, articles made therefrom and flame retardants that comprise blends of (alkyl substituted) triaryl phosphate ester and phosphorus-containing flame retardant havi |
| 7368089 |
Systems and methods for producing fluorocarbons |
May 6, 2008 |
| Systems and methods for producing fluorocarbons are provided that include contacting a saturated halogenated fluorocarbon with hydrogen and catalyst to produce a saturated hydrofluorocarbon and an unsaturated fluorocarbon. Aspects of the present invention describe systems and methods |
| 7348461 |
Processes for halogenating compounds |
March 25, 2008 |
| Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include |
| 7335805 |
Processes for purifying reaction products and processes for separating chlorofluorinated compoun |
February 26, 2008 |
| Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include |
| 7332635 |
Processes for purifying chlorofluorinated compounds |
February 19, 2008 |
| Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include |
| 7329786 |
Processes for producing CF.sub.3CFHCF.sub.3 |
February 12, 2008 |
| Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include |
| 7307183 |
Process for producing tetrabromobenzoate esters |
December 11, 2007 |
| A method for preparing tetrabromobenzoate ester from a tetrabromophthalic anhydride including the steps of reacting the tetrabromophthalic anhydride with a catalyst and an alcohol at a temperature that favors partial esterification over complete esterification of the tetrabromophthal |
| 7268261 |
Production processes |
September 11, 2007 |
| Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245, HFC-125, HFC-134 |
| 7223351 |
Fire extinguishing mixtures, methods and systems |
May 29, 2007 |
| Fire extinguishing mixtures, systems and methods are provided. The fire extinguishing mixtures can include one or more extinguishing compounds, such as, for example, one or more of fluorocarbons, fluoroethers, and fluorocarbons. The fire extinguishing mixtures can also include one or |
| 7216722 |
Fire extinguishing mixtures, methods and systems |
May 15, 2007 |
| Fire extinguishing mixtures, systems and methods are provided. The fire extinguishing mixtures can include one or more extinguishing compounds, such as, for example, one or more of fluorocarbons, fluoroethers, and fluorocarbons. The fire extinguishing mixtures can also include one or |
| 7151197 |
Processes for purifying chlorofluorinated compounds and processes for purifying CF3CFHCF3 |
December 19, 2006 |
| Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other embodiments include |
| 7094936 |
Process for preparing halogenated alkanes |
August 22, 2006 |
| Methods and materials are provided for the production and purification of halogenated compounds and intermediates in the production of 1,1,1,3,3-pentafluoropropane. In a preferred embodiment, the process steps include: (1) reacting carbon tetrachloride with vinyl chloride to produce |
| 6673276 |
Ophthalmic lenses |
January 6, 2004 |
| The present invention relates to the use of metal organic compounds in a process for providing a moulded plastic article comprising the step of polymerization casting of a curable composition comprising one or more polymerizable molecules or compounds or compositions in the presence of a |
| 6426317 |
Stable, high available halogen 1,3,5-triazine-2,4,6-trione compositions having rapid dissolution |
July 30, 2002 |
| Dry, stable, high available halogen sanitizing granular compositions with a rapid rate of dissolution comprising halogenated 1,3,5-triazine-2,4,6-triones and a dissolution accelerant that is an alkali metal salt of 1,3,5-triazine-2,4,6-trione are disclosed. The disclosed compositions |
| 6319356 |
Process for controlling odor in paper and paperboard using a halohydantoin |
November 20, 2001 |
| A method of inhibiting the autooxidation of fatty acids in a paper product made from pulp fiber is accomplished by adding to the pulp fiber between about 1 mole/metric ton and about 25 moles/metric ton, preferably between about 2 moles/metric ton and about 10 moles/metric ton of an oxidi |
| 6310162 |
Ophthalmic lenses |
October 30, 2001 |
| The invention relates to an ophthalmic lens comprising the cured product of a composition comprising:60-99 wt % of a poly(allyl carbonate) of a polyhydroxy alcohol, said polyhydroxy alcohol having from 2 to 20 carbon atoms and from 2 to 6 hydroxy groups in the molecule;0.01-10 wt % of at |
| 6239197 |
Vacuum de-aerated powdered polymer additives |
May 29, 2001 |
| Increased bulk density of powdered flame retardants, flame retardant synergists and other powdered polymer additives substantially improves the processing, dispersibility, and properties of the processed polymer. Processing improvements include faster processing, more homogeneous add |
| 6232485 |
Production of phosphate esters |
May 15, 2001 |
| A process for the production of liquid meta-rich triaryl phosphate esters having low triphenyl phosphate content and low viscosity comprises (a) an alkylation stage wherein a phenol is reacted with an olefin having 2 to 12 carbon atoms in the presence of a strong acid catalyst to give a |
| 6225387 |
Stabilizer blend for organic polymer compositions; stabilized polymer compositions and method of |
May 1, 2001 |
| An organohalide-flame retardant polymer containing as a stabilizer blend:a) an acid scavenger, for example a hydrotalcite or an amorphous basic aluminum magnesium carbonate;b) a heat stabilizer comprising an organotin compound; andc) a polyhydroxyaliphatic costabilizer. |
| 6150552 |
Efficient methods for making tetrahalophthalate esters having excellent purity |
November 21, 2000 |
| Provided are methods for the preparation and purification of alkyl tetrahalophthalate esters by the reaction of a tetrahalophthalic compound with an alkanol in the presence of a titanate catalyst. More particularly, improved methods are provided for making and recovering an ester with |
| 6149835 |
Methods for treating regulated waters with low levels of oxidizing halogens and hydrogen peroxid |
November 21, 2000 |
| This invention provides a method for maintaining effective concentrations of halogen oxidizing agents and hydrogen peroxide in waters to inhibit growth of bacteria and algae. There is also provided a composition comprising a halogen source, an activated amine, such as sulfamic acid, |
| 6147226 |
Synthesis of cyclopentyl 2-thienyl ketone, tiletamine and tiletamine acid addition salts, such a |
November 14, 2000 |
| A water-scavenging solvent, such a polyphosphoric acid, can be used for the synthesis of cyclopentyl 2-thienyl ketone by the direct acylation of cyclopentanecarboxylic acid without first reacting the cyclopentanecarboxylic acid with thionylchloride to form the acid chloride, while ac |
| 6117371 |
Continuous bromination process and products thereof |
September 12, 2000 |
| A preferred process for producing a brominated, non-fused aromatic composition involves a continuous bromination in a continuous, mixed reactor such as a continuous stirred tank reactor. Bromine and the aromatic substrate, and optionally a bromination catalyst, are continuously fed t |
| 6100222 |
High density, viscosified, aqueous compositions having superior stability under stress condition |
August 8, 2000 |
| Advantageous aqueous mixed salt systems viscosified with water-soluble or water-dispersable polymers which are superior to corresponding single salt systems of similar densities are provided. The mixed salt systems comprise water; a water-soluble or water-dispersable polymer capable of |
| 6075158 |
Transesterification process |
June 13, 2000 |
| A process for the preparation of a phosphate ester is disclosed. A triaryl phosphate is reacted with an alcohol in the presence of a catalytic quantity of a base to produce the phosphate ester product. The base has a base strength of less than 11, and is preferably potassium fluoride or |
| 6065547 |
Apparatus and method for fire suppression |
May 23, 2000 |
| A fire extinguisher nozzle including a horn defining a discharge chamber and a discharge member mounted to the horn. The discharge member includes an entry passageway for receiving fire extinguishant from a source therefor. The entry passageway communicates with a plurality of transverse |
| 6063749 |
Stabilized alkyl bromide solvents containing dialkyl carbonates |
May 16, 2000 |
| This invention provides a stabilized alkyl bromide based solvent system that is useful for cleaning and degreasing a wide variety of metal objects. The solvent is stabilized with a stabilizer system that includes a dialkyl carbonate such as dimethyl carbonate and optionally other sta |
| 6049014 |
Process for the manufacture of tetrabromobisphenol-A with co-production of n-propyl bromide |
April 11, 2000 |
| A process for producing n-propyl bromide during the bromination of bis- or trisphenols uses non-aqueous n-propanol as the bromination solvent, providing salable yields of n-propyl bromide to accompany the brominated bisphenol or trisphlenol. |
| 6048833 |
Azeotrope and azeotrope-like compositions of 1-bromopropane and highly fluorinated hydrocarbons |
April 11, 2000 |
| This invention provides a solvent composition comprising 1-bromopropane and a decafluoropentane for use as a cleaning and degreasing solvent. Preferably the decafluoropentane consists essentially of 1,1,1,2,3,4,4,5,5,5-decafluoropentane. The solvent composition optionally includes st |
| 6031035 |
Process for making and using bisaryl diphosphates |
February 29, 2000 |
| Flame retardancy is provided to polymer resins by adding to the resin a bisaryl diphosphate that has not been purified to remove catalyst or catalyst residue from the product. The bisaryl diphosphate may be prepared by a two-step process that starts with the semi-continuous addition of d |
| 6030543 |
Aircraft hydraulic fluid basestocks |
February 29, 2000 |
| The present invention is a composition particularly suitable for use as a base for aircraft non-flammable hydraulic fluids with reduced wear according to the ASTM four ball test. The compositions comprise trialkyoxyalkyl phosphate esters optionally formulated with alkyl phosphite est |
| 6025528 |
Aqueous method to prepare cyclopropyl methylketone from acetyl-propanol |
February 15, 2000 |
| An entirely aqueous method to prepare cyclopropyl methylketone from acetyl-propanol. The method is practiced by (1) forming a mixture of acetyl-propanol and an aqueous hydrogen halide, (2) distilling the mixture and returning at least a portion of the distillate that is aqueous to the |
| 6008283 |
Oligomeric flame retardant additive |
December 28, 1999 |
| Flame retardants comprising oligomeric bromine-containing compounds comprising aryl groups that are connected by aliphatic chains are described. Flame retardant compositions comprising the flame retardants of the present invention and flame retardant aids are also described. Polymeri |
| 5986149 |
Method for recovering alkanols from aqueous HBr-solutions |
November 16, 1999 |
| The present invention provides processes for recovering alkanols from fluids comprising the alkanol and aqueous hydrobromic acid without forming excessive amounts of alkyl bromide. In certain aspects of the invention, there are provided distillation systems wherein a fluid comprising an |
| 5969159 |
Synthesis of cyclopentyl 2-thienyl ketone tiletamine and tiletamine acid addition salts such as |
October 19, 1999 |
| Solid, non-tin-containing catalysts can be used for the synthesis of cyclopentyl 2-thienyl ketone by the reaction of cyclopentanecarboxylic acid chloride and thiophene, while achieving new and unexpected yields. Aluminum trichloride is both cheaper than stannic chloride and it is eas |
| 5962754 |
Method for the preparation of 3-bromo-1,1,1-trifluoropropane |
October 5, 1999 |
| 3-bromo-1,1,1-trifluoropropane is produced by reacting 3,3,3-trifluoropropene with hydrogen bromide at elevated temperature, e.g., 150.degree. C. to 800.degree. C., in the presence of an active carbon catalyst. The conversion, yield and selectivity are unexpectedly high. |
| 5888428 |
Methods for generating residual disinfectants during the ozonization of water |
March 30, 1999 |
| Methods and compositions for generating stable, residual disinfectants during the ozonization of water, comprising the carrying out the ozonization of water in the presence of bromide ions and an effective amount of a hypobromite ion scavenger possessing imide and/or amide functional |
| 5882526 |
Methods for treating regulated waters with low levels of oxidizing halogens and hydrogen peroxid |
March 16, 1999 |
| Methods for treating regulated waters with low levels of oxidizing halogens and hydrogen peroxide are disclosed, wherein the halogen-containing compound is provided with an erosion control agent such as glycoluril, and the hydrogen peroxide is provided with a hydrogen peroxide stabilizer |
| 5866511 |
Stabilized solutions of bromonitromethane and their use as biocides |
February 2, 1999 |
| Stable solutions of bromonitromethane are prepared and shown to be useful as an antimicrobial in a broad spectrum of applications. Bromonitromethane is applied using a stable aqueous solution or is generated from products which act as bromonitromethane donors. Bromonitromethane solutions |
| 5840213 |
Uses of heptafluoropropane |
November 24, 1998 |
| A method of improving the storage life of goods by storing the goods in an environment comprising heptafluoropropane at pressures of between about 0.1 atmospheres and about 2.0 atmospheres. Foods, pharmaceuticals, and other goods adversely affected by oxygen and/or moisture are effective |
| 5814233 |
Compositions and methods for treating water |
September 29, 1998 |
| A method of remediating methyl amine and/or methyl amine derivative odors in aqueous systems by contacting the methyl amine or methyl amine derivative with a compound having amide or imide functionality, such as a hydantoin composition, in the presence of hydrogen peroxide. The amide |
| 5785747 |
Viscosification of high density brines |
July 28, 1998 |
| The present invention provides compositions useful for viscosifying aqueous fluids, methods for making them and methods for using them. In one aspect of the invention, inventive compositions comprise a prehydrating alcohol having at least two hydroxyl groups and having a molecular weight |
| 5756798 |
Process to prepare aryldiphosphoric esters |
May 26, 1998 |
| A process to prepare aryldiphosphate esters without forming an emulsion in the product is described. In one embodiment of this process, the ester is formed by initially reacting a phosphoryl oxyhalide with a dihydric aromatic compound in the presence of an insoluble catalyst to form an |
| 5741949 |
Continuous bromination process and products thereof |
April 21, 1998 |
| A preferred process for producing a brominated, non-fused aromatic composition involves a continuous bromination in a continuous, mixed reactor such as a continuous stirred tank reactor. Bromine and the aromatic substrate, and optionally a bromination catalyst, are continuously fed t |
| 5728760 |
Use of ring-brominated benzoate compounds as flame retardants and/or plasticizers |
March 17, 1998 |
| A method of making flame retarded polyurethanes by including a bromobenzoate compound in the polyurethane mixture. Also disclosed is a method of making flame retarded polyvinyl chlorides, unsaturated polyesters and epoxy resins by incorporating a bromobenzoate compound into the polym |
| 5679287 |
Uses of heptafluoropropane |
October 21, 1997 |
| A method for storing atmosphere sensitive product includes providing an atmosphere surrounding the product which contains at least about 5% heptafluoropropane, preferably at least about 20% heptafluoropropane. The stored products include food, pharmaceutical and chemical products, and |
| 5641520 |
Halogen compositions for water treatment |
June 24, 1997 |
| A method for providing aqueous solutions of HOBr or HOCl which includes adding bleach (NaOCl) to a solution of HBr or HCl an identified absorbance or color change in the resulting solution is detected. Dialkylhydantoins are optionally added to the resulting solution to suppress the forma |
| 5637757 |
One-pot synthesis of ring-brominated benzoate compounds |
June 10, 1997 |
| A method of preparing tetrabromobenzoate compounds from tetrabromophthalic anhydride by reacting tetrabromophthalic anhydride with alcohol in the presence of a decarboxylation catalyst. The reaction may be carried out in an excess of alcohol, or with a near stoichiometric amount of alcoh |
