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Class 558/211 - Benzene ring bonded directly to each of the three chalcogens


Subclass of Class 558 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein each of the three single bonded chalcogens
No. of patents: 45
Last issue date: 03/27/2012


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NumberTitleIssue Date
8143433Low triphenylphosphate, high phosphorous content isopropyl phenyl phosphates with high ortho alkylation
The present invention relates to low triphenyl phosphate, high phosphorous content aryl phosphates with high ortho alkylation that are suitable for use as flame retardant compositions, processes for their preparation, and their use as flame retardants. ...
03/27/2012
7365113Phosphate ester flame retardants from resorcinol-ketone reaction products
Flavan-based and spirodichroman compound-based phosphate esters prepared by reacting flavans and spirodichroman compounds with phosphorus oxychloride, monophenyl dichlorophosphate, or diphenyl chlorophosphate compounds are described. The flavans and spirodichroman c...
04/29/2008
7223747Halocombstatins and methods of synthesis thereof
The invention relates to novel compounds denominated halocombstatins. The halocombstatins are derivatives of combretastatin A-3, and include compounds that exhibit cancer growth cell inhibition against a panel of human cancer cell lines and the murine P388 leukemia,...
05/29/2007
6855702Combretastatin A-4 phosphate prodrug mono-and di-organic amine salts, mono-and di-amino acid salts, and mono-and di-amino acid ester salts
Provided herein are novel and useful combretastatin A-4 prodrug salts that increase the solubility of combretastatin A-4, readily regenerate combretastatin A-4 in vivo under normal physiological conditions, and which produce physiologically tolerable products as a r...
02/15/2005
6746732Triacetyl cellulose film with reduced water transmission property
Disclosed is a triacetyl cellulose film comprising (a) an unsubstituted triphenyl phosphate compound and (b) a lower alkyl-substituted triphenyl phosphate ester compound. Such a film exhibits a reduced rate of water vapor transmission. ...
06/08/2004
6670344Combretastatin A-4 phosphate prodrug mono- and di-organic amine salts, mono- and di- amino acid salts, and mono- and di-amino acid ester salts
Provided herein are novel and useful combretastatin A-4 prodrug salts that increase the solubility of combretastatin A-4, readily regenerate combretastatin A-4 in vivo under normal physiological conditions, and which produce physiologically tolerable prod...
12/30/2003
6486339Phosphorylated product made by heating alkylated phenol in presence of solid acid catalyst
The isomerization of an alkylated phenol composition that contains an ortho-alkyl substituted phenol component to isomerize and reduce the level of ortho-alkyl substituted phenol component therein can be accomplished by heating that composition in the pre...
11/26/2002
6479688Process for making di(hydroxyalkylaryl) aryl phosphate compounds
A process for the formation of a di(hydroxyalkylaryl) aryl phosphate is disclosed which comprises the reaction of an o-alkyl substituted aromatic diol, e.g., an o-alkyl substituted hydroquinone such as o-t-butylhydro-quinone, and monoaryl dihalophosphate,...
11/12/2002
6242631Triaryl phosphate ester composition
The invention relates to a composition of mixed alkylated triphenyl phosphate esters comprising no less than 65% to about 100%, by weight, monoalkylphenyl diphenyl phosphate, up to about 30%, by weight, dialkylphenyl phenyl phosphate, up to about 3%, by w...
06/05/2001
6218344Antiwear additives for spacecraft lubricants
Lubricants for satellite applications consist essentially of a base fluid having low volatility and a minor amount, i.e., about 0.1 to 10 weight percent, of a chlorinated tris(phenoxyphenyl)phosphate....
04/17/2001
6150443Flame-retardant polycarbonate resin composition and its injection moldings
Provided are a flame-retardant polycarbonate resin composition capable of being formed into moldings having good impact resistance, high strength and good thermal stability that are intrinsic to polycarbonate resins and having good antistatic properties a...
11/21/2000
6140399Polymer compositions
The invention relates to a polymeric composition comprising at least one engineering polymer and at least one phosphate ester flame retardant additive which is characterized in that the phosphate ester is a mixed tri (tertiary butylphenyl) phosphate ester...
10/31/2000
5663461Process for producing geranylgeraniol
A process for producing geranylgeraniol is provided, which comprising the steps of subjecting a mixture of at least one ester derivative wherein one or more carbon-carbon double bonds in the molecule are in cis form represented by the general formula (1):...
09/02/1997
5550277Perfluoroalkyl and perfluoroalkylether substituted aromatic phosphates, phosphonates and related compositions
Perfluoroalkyl and perfluoroalkylether substituted aromatic phosphates, phosphonates and related compositions prepared by reaction of pefluoroalkyl or pefluoroakylether substituted phenols with mono- and dihalophosphite and primary and secondary phosphony...
08/27/1996
5278212Flow modifier for thermoplastic resin and thermoplastic resin composition containing the same
A flow modifier for a thermoplastic resin, which is a hydroxyphenyl-containing organophosphorus compound represented by formula (I): ##STR1## wherein R1, R2, R3, and R4 each represents a hydroxyl group...
01/11/1994
5210261Production of phosphorothioate salts
Amine salts of phosphorothioic acids, useful for example in lubricant compositions, are made by forming a mixture of sulphur and an amine, and then adding a phosphite ester. The reaction is controlled by the rate of addition of the ester....
05/11/1993
5206404Triaryl phosphate ester composition and process for its preparation
The invention is a novel composition of alkylated phenyl phosphate esters comprising by weight 1% to 20% trialkylphenyl phosphate, 10% to 50% dialkylphenyl monophenyl phosphate, 15% to 60% monoalkylphenyl diphenyl phosphate and less than 2% triphenyl phos...
04/27/1993
5196130Lubricity additive for high-temperature gas turbine engine oils
A tris[4-(chlorophenoxy)phenyl] phosphate of the formula: ##STR1## wherein n has a value of 1 to 5. This compound is effective as a lubricity additive for high temperatures lubricants....
03/23/1993
5138085Process for purifying polybrominated triaryl phosphate esters
The invention is a process for purifying a solid, storage-stable tris(bromophenyl)phosphate ester dissolving a crude tris(bromophenyl)phosphate in an ester at an elevated temperature, and cooling the solution sufficiently to recover a solid phase....
08/11/1992
5130452Phosphorus compounds and their use as flame retardant for polymers
Compounds of general formula I ##STR1## wherein X1 is chloro or bromo, X2 is chloro, bromo or hydrogen, and Y is O or S, and R1 and R2 are each independently of the other C1 -C4 alkyl, and ...
07/14/1992
5128496Process for preparing storage-stable tris(bromophenyl)phosphates
The invention is a process for preparing a solid, storage-stable tris(bromophenyl)phosphate ester by the phosphorylation of a bromophenol and recovering the product by cooling a solution of the reaction mixture from a hydrocarbon solvent containing 2 to 2...
07/07/1992
4814451Process for preparing phosphorothioates and phosphates and phosphonothioates and phosphonates
Certain phenyl and N-heterocyclic phosphorothioates and phosphonothioates and phosphates are prepared by the reaction of an appropriate alkali metal or alkaline earth metal --0-phenyl or N-heterocyclic compound with an appropriate phosphorochloridate, ph...
03/21/1989
4814448Process for preparing phosphorothioates and phosphates
Certain phenyl and N-heterocyclic phosphorothioates and phosphates are prepared by the reaction of an appropriate alkali metal or alkaline earth metal -O-phenyl or N-heterocyclic compound with an appropriate phosphorochloridate or phosphorochloridothioate...
03/21/1989
4724265Process for preparing liquid triaryl thiophosphate mixtures
Liquid mixed triaryl thiophosphate mixtures can be prepared by forming a mixture of phenol and substituted phenols, forming a phosphite from that mixture and sulfurizing the phosphite, washing the thiophosphate with aqueous base, and drying the so washed ...
02/09/1988
4526917Flame retardant mixture of triaryl phosphates and resinous compositions thereof
Flame retardant admixtures of triaryl phosphates and a resin as well as a process for preparation are described. The triaryl phosphate mixture includes at least one phosphate where 1 or 2 of the 3 aryl groups are mesityl and the remaining group or groups ...
07/02/1985
4492660Low temperature stable tert-butylphenyl diphenyl phosphate
A process for producing tert-butylphenyl diphenyl phosphate which is stable at low temperature by a process wherein phenol is butylated to produce tert-butylphenol which is isomerized to produce mixed meta and para isomers thereof, and which thereafter is...
01/08/1985
4402883Reclamation of organophosphate fluids
Acidity of used organophosphate containing functional fluids is reduced by contact with activated alumina. The activated alumina is regenerated for reuse by a sequential leaching/heating process....
09/06/1983
4378320Meta-tertiary-butylphenyl diphenyl phosphate
Tertiary-butylphenyl diphenyl phosphate esters in which the nominal molar ratio of tertiary-butyl radicals to phenyl radicals ranges from about 1:5 to about 1:2, the meta-tertiary-butylphenyl content ranges from about 25% to about 100 % and the ortho-tert...
03/29/1983
4370281Triaryl phosphates
The invention provides triaryl phosphates of the general formula ##STR1## wherein x is 1 or 2, R1 is hydrogen, R2 and R3 are the same or different and represent hydrogen, t-butyl or isopropyl, R4 is hydroge...
01/25/1983
4280945Vinyl chloride compositions plasticized with meta-tertiary-butylphenyl diphenyl phosphate
Tertiary-butylphenyl diphenyl phosphate esters in which the nominal molar ratio of tertiary-butyl radicals to phenyl radicals ranges from about 1:5 to about 1:2, the meta-tertiary-butylphenyl content ranges from about 25% to about 100% and the ortho-terti...
07/28/1981
4199517Cumylphenol derivatives
New cumylphenol derivatives are described which are useful as reactive diluents, plasticizers and impact modifiers for polymeric materials. The derivatives include the higher alkanoic, alkenoic, aryl carboxylic and alkaryl carboxylic esters of monocarboxy...
04/22/1980
4153562Antioxidants for low ash and medium ash lubricating oils
Highly effective antioxidants that are particularly useful in crankcase lubricating oil formulations of relatively low ash content are prepared by the condensation of phosphorodithioates of alkyl phenol sulfides with compounds having activated double bond...
05/08/1979
4118329Amine phosphate salts and phosphoramides
A mixture containing a major proportion of amine phosphate salts and a minor proportion of phosphoramides is prepared by reacting a triaryl phosphate and an aliphatic amine in the presence of a catalytic amount of a trialkyl borate. Certain of these mixtu...
10/03/1978
4118330Amine phosphate salts and phosphoramides
A mixture of phosphate salts and phosphoramides are prepared by reacting a triaryl phosphate and an aliphatic amine in the presence of a catalytic amount of boron trifluoride. These phosphorus mixtures are useful as additives for lubricating oils....
10/03/1978
4118328Amine phosphate salts
Phosphate salts are prepared by reacting a triaryl phosphate and an aliphatic amine in the presence of a catalytic amount of boric acid. Certain of the phosphate salts are useful as additives for lubricating oils....
10/03/1978
4096209Phosphorylated secondary butylated phenol/phenol ester mixtures
Phosphorylated alkylated phenol/phenol ester mixtures in which the weight ratio of the alkyl moiety to the phenol moiety ranges from 0.05 to about 0.65, and the number of carbon atoms per alkyl moiety ranges from 3 to 16, preferably from 3 to 12, which mi...
06/20/1978
4093680Phosphorylated tertiary butylated phenol/phenol ester reaction mixtures
Phosphorylated alkylated phenol/phenol ester mixtures in which the weight ratio of the alkyl moiety to the phenol moiety ranges from 0.05 to about 0.63, and the number of carbon atoms per alkyl moiety ranges from 3 to 16, preferably from 3 to 12, which mi...
06/06/1978
4069189Chemical process and products
Phosphorylated alkylated phenol/phenol ester mixtures in which the weight ratio of the alkyl moiety to the phenol moiety ranges from 0.05 to 0.65, and the number of carbon atoms per alkyl moiety ranges from 3 to 16, preferably from 3 to 12, which mixtures...
01/17/1978
3931361Color improvement of phosphate esters
A method for decolorizing and stabilizing alkylphenyl esters of phosphoric acid which comprises contacting the esters with an effective amount of a sodium salt selected from the group consisting of sodium dithionite and sodium formaldehyde sulfoxylate for...
01/06/1976
3931362Color improvement of phosphate esters
A method for decolorizing and stabilizing alkylphenyl esters of phosphoric acid which comprises contacting the esters with an effective amount of an oxidizable nitrogenous compound for a sufficient length of time to decolorize and stabilize the esters aga...
01/06/1976
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