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David Nalewajek, West Seneca US

David Nalewajek, West Seneca, NY US

Patent application numberDescriptionPublished
20090099274AMINE CATALYSTS FOR POLYURETHANE FOAMS - The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof More particularly, the invention relates to open-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a sterically hindered amine catalyst.04-16-2009
20090149681METHOD FOR PREPARING 1,1,1,3,3-PENTAFLUOROPROPANE - A process for the production of C2-C4 hydrofluorocarbon, such as 1,1,1,3,3-pentafluoropropane, by contacting a non-fluorinated hydrochlorocarbon with a fluorinating agent, such as hydrogen fluoride, in a liquid catalyst system preferably comprising fluorinated superacid catalyst prepared from SbF06-11-2009
20090269478CARRIER SOLVENT FOR FINGERPRINT FORMULATIONS - A method and composition for transforming a latent physiological biometric into a visible physiological biometric are provided, the method comprising: providing a latent biometric disposed on a surface of an article, wherein said biometric comprises at least one eccrine-derived compound; contacting said latent biometric with a developing solution, wherein said developing solution comprises at least one imaging reagent selected from ninhydrin and 1,8-diazafluoren-9-one and a carrier solvent comprising at least one C10-29-2009
20100081570HERBICIDE COMPOSITIONS - Chloropentafluoropropene is employed as a herbicide for the effective control of undesirable spermatophyte growth.04-01-2010
20100139274Chloro- And Bromo-Fluoro Olefin Compounds Useful As Organic Rankine Cycle Working Fluids - Aspects of the present invention are directed to working fluids and their use in processes wherein the working fluids comprise compounds having the structure of formula (I):06-10-2010
20110198756Organometallic Precursors and Related Intermediates for Deposition Processes, Their Production and Methods of Use - Vapor deposition precursors that can deposit conformal thin ruthenium films on substrates with a very high growth rate, low resistivity and low levels of carbon, oxygen and nitrogen impurities have been provided. The precursors described herein include a compound having the formula CMC′, wherein M comprises a metal or a metalloid; C comprises a substituted or unsubstituted acyclic alkene, cycloalkene or cycloalkene-like ring structure; and C′ comprises a substituted or unsubstituted acyclic alkene, cycloalkene or cycloalkene-like ring structure; wherein at least one of C and C′ further and individually is substituted with a ligand represented by the formula CH(X)R08-18-2011
20110252694COMPOSITIONS FOR DRIP FUMIGATION - Soil fumigation compositions are provided herein that include methyl iodide, at least one fluorocarbon or hydrofluorocarbon, at least one surfactant, and water. The fumigant can be produced by combining the water and surfactant with an initial mixture that is an azeotropic or azeotrope-like mixture of methyl iodide and at least one fluorocarbon or hydrofluorocarbon. The fumigant compositions can be utilized in drip fumigation processes, and have increased volatility as compared to methyl iodide alone, which can reduce the risk of water contamination when utilizing methyl iodide as a fumigant.10-20-2011
20110288346PROCESS FOR CIS 1,1,1,4,4,4-HEXAFLUORO-2-BUTENE - Disclosed is a process for preparing cis-1,1,1,4,4,4-hexafluoropropene comprising the steps of (a) reacting CCl11-24-2011
20110288348PROCESS FOR THE PREPARATION OF HEXAFLUORO-2-BUTYNE - Disclosed is a process for making hexafluoro-2-butyne comprising the steps of: (a) providing a composition comprising CF11-24-2011
20110288349PROCESS FOR THE PRODUCTION OF FLUORINATED ALKENES - The present invention provides a method for the preparation of suitable chlorofluorocarbon and hydrochlorofluorocarbon materials or chlorofluorocarbon and hydrochlorofluorocarbon alkene and alkyne intermediates which serve as useful feedstock for fluorination and reduction to cis-1,1,1,4,4,4-hexafluoro-2-butene. Also presented is a continuous process for the production of cis-1,1,1,4,4,4-hexafluoro-2-butene from the alkene and alkyne intermediates.11-24-2011
20110288350PROCESS FOR THE PREPARATION OF FLUORINATED CIS-ALKENE - Disclosed is a process for the preparation of fluorine-containing olefins comprising contacting a chlorofluoroalkane with hydrogen in the presence of a catalyst at a temperature sufficient to cause replacement of the chlorine substituents of the chlorofluoroalkane with hydrogen to produce a fluorine-containing olefin. Also disclosed are catalyst compositions for the hydrodechlorination of chlorofluoroalkanes comprising copper metal deposited on a support, and comprising palladium deposited on calcium fluoride, poisoned with lead and reducing the in the presence or absence of a dehydrochlorination catalyst under conditions effective to form a product stream comprising cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336).11-24-2011

Patent applications by David Nalewajek, West Seneca, NY US