Of Compounds Having Plural Phosphori Patents (Class 558/147)
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Patent number: 9840524Abstract: Process with universal usefulness for reducing the chlorine content of organomonophosphites, using two solutions.Type: GrantFiled: April 29, 2015Date of Patent: December 12, 2017Assignee: EVONIK DEGUSSA GMBHInventors: Katrin Marie Dyballa, Robert Franke
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Patent number: 9314410Abstract: An oral care composition comprising a stannous ion source and/or a zinc ion source; a phytic acid or a phytic acid salt or mixtures thereof; characterized in that the phytic acid or phytic acid salt has an average IPn of greater than 5.2. In a composition which comprises stannous, there is a decrease in soluble stannous whilst maintaining an equivalent efficacy to a composition comprising a higher level of soluble stannous and efficacy is observed for avoiding stain and astringency problems. When zinc ions are present, it has been surprisingly found that a decrease in soluble zinc can provide an equivalent antimicrobial efficacy to a composition comprising a greater level of soluble zinc.Type: GrantFiled: July 12, 2012Date of Patent: April 19, 2016Assignee: The Procter & Gamble CompanyInventors: Steven Hamilton Hoke, II, Ross Strand, Xiaoli Wang, Yiqun Zhang
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Patent number: 9011691Abstract: Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the diphosphite-containing compounds.Type: GrantFiled: November 20, 2012Date of Patent: April 21, 2015Assignee: INVISTA North America S.a.r.l.Inventors: William J. Tenn, III, Sudhir N. V. K. Aki, Tseng H. Chao, Thomas E. Vos
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Publication number: 20140378693Abstract: Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the diphosphite-containing compounds.Type: ApplicationFiled: November 20, 2012Publication date: December 25, 2014Applicant: INVISTA North America S.a.r.l.Inventor: William J. Tenn, III
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Publication number: 20140350280Abstract: Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the diphosphite-containing compounds.Type: ApplicationFiled: November 20, 2012Publication date: November 27, 2014Applicant: INVISTA North America S.a.r.l.Inventor: William J. Tenn, III
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Publication number: 20140316153Abstract: Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are pre-treatments to enhance extractability of the diphosphite-containing compounds.Type: ApplicationFiled: November 20, 2012Publication date: October 23, 2014Applicant: INVISTA North America S.a.r.l.Inventor: William J. Tenn
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Publication number: 20130225849Abstract: The present invention relates to a method of purifying organic diphosphite compounds.Type: ApplicationFiled: December 31, 2012Publication date: August 29, 2013Applicant: BASF SEInventor: BASF SE
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Patent number: 8278375Abstract: Mixtures of three types of linear, branched or cyclic phosphates are useful flame retardants, especially for thermoplastic resins or as functional additives in polymer matrices.Type: GrantFiled: July 5, 2006Date of Patent: October 2, 2012Assignee: Rhodia UK LimitedInventors: Vincent Schanen, Dwight Shamblee, Gleb Priimov, Julie Ann Salter
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Publication number: 20120022193Abstract: There is provided herein a process for purifying bisphosphate comprising solvating a molten bisphosphate in a mixture of water and water miscible solvent; cooling the solution over a period and to a temperature that provides for crystallization of solid product; increasing the pH of the solution prior to, and/or during, and/or after the initiation of crystallization, and/or after crystallization, by the addition of a base; and after crystallization is complete, separating solid product from the solution; washing the separated solid product in the same and/or different mixture of water and water miscible solvent; and, washing the solid product which has been washed in the mixture with water.Type: ApplicationFiled: December 21, 2009Publication date: January 26, 2012Inventors: Joseph Zilberman, Dorit Canfi, Andrew Gregor, Andrew Piotrowski
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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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Patent number: 6717005Abstract: A polyphosphate ester composition consisting essentially of an effective amount of a cycloaliphatic epoxy composition for reduction of the total acid number of the composition. The phosphate ester is of the formula: where R can be aryl or alkaryl, R′ can be arylene, arylene-alkylene-arylene, or alkylene, and n ranges from about 1 to about 5.Type: GrantFiled: May 13, 2002Date of Patent: April 6, 2004Assignee: Akzo Nobel N.V.Inventors: Eric W. Burkhardt, Danielle A. Bright, Sergei Levchik, Sophia Dashevsky, Mark Buczek
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Patent number: 6706907Abstract: A method of purifying an organic phosphoric ester characterized by treating a crude organic phosphoric ester with an epoxy compound and treating the treated organic phosphoric ester with an alkaline aqueous solution to purify it. The purification method is effective in stably obtaining an organic phosphoric ester reduced in acid value and excellent in heat resistance, hydrolytic resistance, and storage stability, regardless of the kind or amount of the organic phosphoric ester, the treating conditions, etc.Type: GrantFiled: January 24, 2002Date of Patent: March 16, 2004Assignee: Daihachi Chemical Industry Co. Ltd.Inventors: Kiyoharu Hirao, Masasuke Oda
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Patent number: 6403820Abstract: The process for producing a low acid value phosphoric ester of the present invention is characterized by comprising treating a phosphoric ester having an acid value with an organic ortho-acid ester. The phosphoric ester preferably has a specific structure. The organic ortho-acid ester is preferably an ester of orthoformic acid, orthoacetic acid or orthopropionic acid with an alkyl group having 1 to 4 carbon atoms.Type: GrantFiled: February 8, 2001Date of Patent: June 11, 2002Assignee: Asahi Denka Kogyo Kabushiki KaishaInventors: Kazuhiko Hayashi, Tetsuo Kamimoto, Hisashi Murase, Ryoji Kimura
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Patent number: 5679824Abstract: A method of pulverizing aromatic phosphates which comprises stressing an oily product of an aromatic phosphate having a purity of 90% or more at a temperature lower by 5.degree. to 100.degree. C. than a melting point of the aromatic phosphate in a temperature-controllable kneader to solidify and pulverize the aromatic phosphate.According to the present invention, aromatic phosphates industrially obtained are able to be solidified and pulverized in a short time in a simple way without being subjected to specific purification. Further, the invention is industrially advantageous in that the solidification and pulverization can be performed successively after production of the aromatic phosphate.Type: GrantFiled: July 24, 1996Date of Patent: October 21, 1997Assignee: Daihachi Chemical Industry Co., Ltd.Inventors: Kiyoharu Hirao, Shouji Oda, Yukio Omoda
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Patent number: 5616768Abstract: A process for purifying a phosphoric ester, which comprises treating a crude phosphoric ester with an epoxy compound, heating the resultant in the presence of water, washing the resultant with water, and removing the residual water. The obtained phosphoric esters have low acid value and are excellent in physical properties such as heat resistance, resistance to hydrolysis and storage stability, and are useful as plasticizers and/or flame-retardants.Type: GrantFiled: June 19, 1995Date of Patent: April 1, 1997Assignee: Daihachi Chemical Industry Co., Ltd.Inventors: Shigeru Kawata, Kazuo Noguchi, Kenji Ako, Shin Nakamura
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Patent number: 5574180Abstract: Described is a process for recovering phytic acid or phytic acid salt from a medium in which it is contained. This process includes contacting the medium with a solid-phase free base polymer having tertiary amine functions to adsorb the phytic acid or salt thereof. In one preferred mode, the medium to be treated also contains lactic acid, and separate fractions predominant in (i) lactic acid and (ii) phytic acid or phytic acid salt, respectively, are recovered. Also described are preferred processes for treating mediums to recover lactic acid therefrom, and a favored process for obtaining inositol directly by hydrolyzing phytic acid or phytic acid salt while adsorbed on a pyridine-containing polymer.Type: GrantFiled: August 1, 1994Date of Patent: November 12, 1996Assignee: Reilly Industries, Inc.Inventors: Donald McQuigg, Charles Marston, Gina Fitzpatrick, Ernest Crowe, Susan Vorhies, Ramiah Murugan, Thomas D. Bailey
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Patent number: 5414028Abstract: Carbohydrate substituted dibenzo[d,f][1,3,2]dioxaphosphepin compounds of formula I ##STR1## where A is a carbohydrate residue are effective stabilizers for polymers processed at elevated temperatures and subject to thermal or oxidative degradation.Type: GrantFiled: February 17, 1994Date of Patent: May 9, 1995Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Joseph E. Babiarz
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Patent number: 5344860Abstract: The beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2, 2'-diyl) phosphite] is obtained by crystallizing said compound from the melt at elevated temperatures.The beta crystalline form is an effective process stabilizer for polyolefins, particularly polypropylene.Type: GrantFiled: November 12, 1993Date of Patent: September 6, 1994Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Sai P. Shum
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Patent number: 5331031Abstract: The gamma crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2, 2'-diyl)phosphite] is obtained by crystallizing or recrystallizing said compound from an alkanol of 4 to 8 carbon atoms.The gamma crystalline form is an effective process stabilizer for polyolefins, particularly polypropylene.Type: GrantFiled: August 18, 1993Date of Patent: July 19, 1994Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Sai P. Shum, Paul A. Odorisio
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Patent number: 5326802Abstract: The beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tertbutyl-1,1'-biphenyl-2,2 '-diyl) phosphite] is obtained by crystallizing said compound from the melt at elevated temperatures.The beta crystalline form is an effective process stabilizer for polyolefins, particularly polypropylene.Type: GrantFiled: November 30, 1992Date of Patent: July 5, 1994Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Sai P. Shum
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Patent number: 5260472Abstract: Multigram quantities of Ins(1,4,5) P.sub.3, Ins(1,3,4) P.sub.3, and Ins(1,3,4,5)P.sub.4 are prepared in their enantiomerically pure forms from the two enantiomers of 1,2:5,6-di-O-cyclohexylidene myo-inositol. Also, a facile enzymatic preparation is also described of these chiral precursors through enantiospecific deacylation of the corresponding racemic esters is disclosed.Type: GrantFiled: January 29, 1992Date of Patent: November 9, 1993Assignee: The Board of Governors for Higher Education State of Rhode Island and Providence PlantationsInventor: Ching-Shih Chen
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Patent number: 5248804Abstract: A novel process for the removal of phytate from protein using ion exchange has been developed. The process involves the upflow passage of a protein slurry at an elevated temperature through a strong base anion exchanger in the chloride form. The weak base anion sites inherent to the resin have been converted to the free base form. The anion exchange material can easily be regenerated. The process can be used on-line, yields phytate removal of greater than 90%, has high (greater than 90%) protein recovery, is cost-effective, and is environmentally friendly.Type: GrantFiled: December 8, 1992Date of Patent: September 28, 1993Assignee: Abbott LaboratoriesInventors: Christy A. Nardelli, Terrence B. Mazer, Arthur J. C. L. Hogarth, John D. Suh, Andre Daab-Krzykowski, Leona M. Pickett, Harold W. Keller, William J. Nelson
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Patent number: 5177598Abstract: Disclosed is a multipage display apparatus which divides one screen into several sections so as to display a plurality of pages at the same time. The apparatus comprises a microprocessor, a teletext unit for outputting signals R, G and B in unit of one page, a first encoder for encoding the signals R, G and B and outputting a composite video signal in the normal mode, luminance and chrominance difference signal separators, a controller and a memory unit for reading and writing the converted digital luminance and chrominance difference signals, a second encoder for encoding information read out all at once from the memory and outputting a composite video signal of a multipage mode, a window signal generator for receiving a synchronizing signal from the synchronizing and sampling frequency separator and generating a window signal, and a switch unit in which the composite video signal of either a normal mode or a multipage mode is selected by the window signal.Type: GrantFiled: June 26, 1991Date of Patent: January 5, 1993Assignee: Samsung Electronics Co., Ltd.Inventor: Tae-hwa Jeong
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Patent number: 4668813Abstract: A phytin-containing solution such as corn steep liquor, acid extract of rice bran is treated with an anion exchange resin with phytin adsorption. The phytin is then separated from the resin by alkali-elution, then the phytin thus recovered is further subjected to the treatment of hydrolysis under pressure, phosphate removement, purifying, etc. to prepare inositol. Alternatively, the recovered phytin is further subjected to the treatment of desalting, purfiying, etc. to prepare phytic acid.Type: GrantFiled: February 24, 1986Date of Patent: May 26, 1987Assignees: Showa Sangyo Co., Ltd., Shikishima Starch Manufacturing Co., Ltd.Inventors: Hiroshi Ogawa, Tomoei Kanno