Patents Assigned to Supresta LLC
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Patent number: 7759522Abstract: A crude phosphate ester product can be purified by first washing it with chelating agent composition (such as a dilute acidic solution) and then, preferably, water, drying the resulting product, and then treating the resulting product with an acid scavenger, as exemplified by an epoxy-containing compound, such as 3,4-epoxy cyclohexyl methyl-3,4-epoxy cyclohexyl carboxylate.Type: GrantFiled: February 8, 2002Date of Patent: July 20, 2010Assignee: Supresta LLCInventors: Danielle A. Bright, Eric W. Burkhardt, Antoon ten Kate, Sophia Dashevsky, John Tomko
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Patent number: 7700807Abstract: A process is provided for reacting dichloromonophenyl phosphate and monochlorodiphenyl phosphate with aliphatic alcohol in the presence of a Lewis acid catalyst and absence of solvent, at a temperature above 60 to 200° C. and pressure of 0.001 to 1.1 bara, and sparging the reaction mixture with an inert carrier gas if the pressure is above 0.67 bars. Mixtures of monoalkyl biphenyl phosphates and dialkyl monophenyl phosphates and use of such mixtures as a plasticizer and/or flame retardant, are also provided.Type: GrantFiled: October 21, 2004Date of Patent: April 20, 2010Assignee: Supresta LLCInventors: Lambertus A. De Kleine, Juergen Klaus Seifert
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Patent number: 7662876Abstract: Flame retarded resin compositions comprise at least one resin selected from the group consisting of polycarbonate, polyester and mixtures thereof, and a flame retarding effective amount of at least one nonhalogenated arylalkylsilyl flame retardant, the flame retarded resin composition being substantially free of haloorganic flame retardant and phosphate flame retardant.Type: GrantFiled: December 15, 2004Date of Patent: February 16, 2010Assignee: Supresta LLCInventors: Johst Hermann Burk, Sergei Vladimirovich Levchik, Vladmir Petrovich Prokopovich, Elena Alekseevna Murashko, Irena Arkadeyvna Klimovzova
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Publication number: 20090192237Abstract: A flame retardant composition for use in flame retarding a polyurethane foam composition so that the foam has reduced scorch as a result of its manufacture, said flame retardant composition comprising a mixture of (a) a flame retardant of the type that normally causes scorch when used in such foam and (b) a benzofuranone derivative, as a anti-scorch stabilizer. Flame retarded polyurethane foams having reduced discoloration are also provided.Type: ApplicationFiled: April 26, 2005Publication date: July 30, 2009Applicant: SUPRESTA LLCInventors: Barbara A. Williams, Edward D. Weil, Gerald Fesman, Theodore Halchak, Danielle A. Bright, Alyce Halchak, Leslie Bright
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Patent number: 7541415Abstract: A process is provided for the production of diaryl alkyl phosphonate by the reaction of triaryl phosphate with dialkyl alkyl phosphonate in the presence of alkali metal iodide catalyst; and, optionally, the diaryl alkyl phosphonate is reacted in situ with aromatic diol and, optionally, with at least one branching monomer, in the absence of other or further added catalyst to provide oligomeric and/or polymeric phosphonate products.Type: GrantFiled: August 29, 2005Date of Patent: June 2, 2009Assignee: Supresta LLCInventors: Andrew M. Piotrowski, Edward D. Weil, Qiang Yao, Sergei V. Levchik
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Patent number: 7473725Abstract: A vinyl chloride resin composition contains, as the major plasticizer, a neopentyl glycol bis(diphenyl phosphate) composition in an amount that is no less than about 25% by weight, based upon the vinyl chloride resin being present at 100%, by weight.Type: GrantFiled: June 24, 2003Date of Patent: January 6, 2009Assignee: Supresta LLC.Inventors: Paul Y. Moy, Lambertus Antonius De Kleine
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Patent number: 7442737Abstract: A phosphate ester composition of low acidity achieved by treating the phosphate ester of high acidity with an oxetane compound. The phosphate ester can be represented by the formula (I), where Ar is an aryl or alkaryl group, R is an arylene or alkylene group, and n can range from to 0 to about 5.Type: GrantFiled: June 24, 2003Date of Patent: October 28, 2008Assignee: Supresta LLCInventors: Danielle Angrand Bright, Edward D. Weil, Ronald L. Pirrelli
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Patent number: 7427652Abstract: An epoxy resin composition is disclosed that comprises an epoxy resin, a reactive phosphonate curing agent, an inorganic filler, whose presence allows for reduced amounts of phosphonate as compared to a composition not containing the filler, an optional polybenzoxazine resin, and an optional co-curing agent.Type: GrantFiled: November 7, 2003Date of Patent: September 23, 2008Assignee: Supresta LLCInventors: Sergei Levchik, Mark Buczek
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Patent number: 7407997Abstract: A vinyl chloride polymer composition that contains a mixture of an alkylene-bridged bisphosphate composition, as a fire retardant, and a polyester plasticizer, which is the reaction product of an aliphatic diol and a dicarboxylic acid.Type: GrantFiled: November 2, 2005Date of Patent: August 5, 2008Assignee: Supresta LLCInventors: Paul Y. Moy, Lambertus A. DeKleine
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Publication number: 20080153935Abstract: The invention relates to a polyester polyurethane foam obtained by reacting an organic polyisocyanate with a liquid polyol having a melting point lower than 25° C. in the presence of a halogen-free organophosphorus flame retardant and a foam stabilizer, characterized in that the stabilizer is fumed silica in an amount of 0.1 to 5 wt. % of the composition.Type: ApplicationFiled: February 9, 2006Publication date: June 26, 2008Applicant: SUPRESTA LLCInventor: Johan Antoni Wuestenenk
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Publication number: 20080132619Abstract: A flame retarded thermoplastic polymer composition comprising a thermoplastic polymer and a metal salt of phosphinic acid possessing a desired degree of volatility.Type: ApplicationFiled: June 20, 2005Publication date: June 5, 2008Applicant: SUPRESTA LLCInventors: Qiang Yao, Sergei V. Levchik, Gerald R. Alessio
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Publication number: 20070270616Abstract: A process is provided for reacting dichloromonophenyl phosphate and monochlorodiphenyl phosphate with aliphatic alcohol in the presence of a Lewis acid catalyst and absence of solvent, at a temperature above 60 to 200° C. and pressure of 0.001 to 1.1 bara, and sparging the reaction mixture with an inert carrier gas if the pressure is above 0.67 bars. Mixtures of monoalkyl biphenyl phosphates and dialkyl monophenyl phosphates and use of such mixtures as a plasticizer and/or flame retardant, are also provided.Type: ApplicationFiled: October 21, 2004Publication date: November 22, 2007Applicant: SUPRESTA LLCInventors: Lambertus De Kleine, Juergen Siefert
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Patent number: 7166736Abstract: Neopentyl glycol bis(diphenyl phosphate) liquid compositions are described that comprise from about 75% to about 90%, by weight, of neopentyl glycol bis(diphenyl phosphate), less than about 5% by weight of cyclic product, less than about 8% by weight of triphenyl phosphate, and with a P3 content of no less than about 1%, by weight. These compositions are made by continuously adding neopentyl glycol to a diaryl chlorophosphate mixture at elevated temperature, under vacuum, and in the presence of a catalyst.Type: GrantFiled: May 6, 2003Date of Patent: January 23, 2007Assignee: Supresta LLCInventors: Danielle Angrand Bright, Ronald L. Pirrelli, Anantha Narayanan Desikan
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Publication number: 20060145121Abstract: Storing, for a period of time, of a blend comprising an arylene-bridged oligomeric phosphate composition and an effective amount of an alkylene-bridged bisphosphate results in a retardation of crystallization as compared to storage of a composition comprising the arylene-bridged oligomeric phosphate composition without also containing the alkylenebridged bisphosphate.Type: ApplicationFiled: October 25, 2003Publication date: July 6, 2006Applicant: Supresta LLCInventors: Sergei Levchik, Gerald Alessio
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Patent number: 7071347Abstract: A method for decolorizing and stabilizing alkylphenyl esters of phosphoric acid which comprises contacting the esters with an effective amount of a benzofuranone (e.g., is 5,7-di-t-butyl-3-(3,4 di-methylphenyl)3H-benzofuran-2-one) for a sufficient length of time to decolorize and stabilize the esters against subsequent color formation.Type: GrantFiled: March 1, 2001Date of Patent: July 4, 2006Assignee: Supresta LLCInventors: Paul Albert Iacobucci, Anantha Desikan, Alan Abramson
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Publication number: 20060111486Abstract: A vinyl chloride resin composition contains, as the major plasticizer, a neopentyl glycol bis(diphenyl phosphate) composition in an amount that is no less than about 25% by weight, based upon the vinyl chloride resin being present at 100%, by weight.Type: ApplicationFiled: June 24, 2003Publication date: May 25, 2006Applicant: Supresta LLCInventors: Paul Moy, Lambertus De Kleine
