Class 568/66 - Polythiol

Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain two or more -SH groups.
No. of patents: 41
Last issue date: 11/01/2011

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Number	Title	Issue Date
8049042	Resist polymer, resist composition, process for pattern formation, and starting compounds for production of the resist polymer To provide a resist polymer comprising, as a structural unit, an acid-decomposable unit having a structure represented by formula (1) or (2) which exhibits a small line edge roughness and produces little defects in DUV excimer laser lithography or the like.	11/01/2011
7183441	Method for producing vicinal dithiol A vicinal dithiol is produced by the reaction of an episulfide compound having at least one thiirane ring in its molecule and a thiocarboxylic S-acid. ...	02/27/2007
7173156	Thioacetate deprotection A method of thioacetate deprotection by providing a compound of the formula R1—S—CO—R2, and reacting the compound with a quaternary ammonium cyanide salt in the presence of a protic solvent in an inert atmosphere to convert the compound t...	02/06/2007
7026372	Enic compounds, sulfur-containing polyenic compound, sulfur-containing polythiol compound, high refractive index photocurable composition and cured product thereof A composition containing 3,3′-thiobis(propane-1,2-dithiol) and one or more enic compounds which composition is photocurable and can give a cured product having a high refractive index and adequate hardness. ...	04/11/2006
6379590	Method for making unsymmetrically substituted fluorenyl compounds for nonlinear optical applications A new method for producing unsymmetrically substituted fluorenyl compounds, one step of which is the preparation of 2,7-disubstituted fluoren-9-one derivatives via the nucleophilic substitution of a compound of the formula D ##STR1## wherein A' is se...	04/30/2002
6248687	Process for presulfurizing a desulfurization catalyst used in a hydrodesulfurization unit of petroleum refinery and presulfurization promoter Presulfurizing process and presulfurization promoter for a desulfurization catalyst to be used in a hydrodesulfurization unit of petroleum refinery of high molecular hydrocarbons, in which fresh metal oxide in said desulfurization catalyst is sulfurized w...	06/19/2001
5981809	Process for the preparation of difunctional compounds of high enantiomeric purity A process for preparing a difunctional compound having high enantiomeric purity that is a 1,2-, 1,3-, or 1,4-diol, dithiol, or mercapto alcohol from an optically active starting material that includes an ଱-, ଲ-, or γ-hydroxy (or mercapto) ald...	11/09/1999
5741884	Process for making poly(thioether ether)s from diallyl ether and dithiols Processes for making poly(thioether ether)s and hydroxy-terminated poly(thioether ether)s are disclosed. The poly(thioether ether)s are made by bulk free-radical polymerization of diallyl ether and an aliphatic C2 -C10 dithiol. Liqui...	04/21/1998
5712357	Method for metathetically preparing sulphur containing polymers or organic compounds A process for the preparation of organic compounds or polymers containing one or more sulphur atoms and including one or more double bonds in a hydrocarbon chain is described. An acyclic sulphur-containing olefin or an unsaturated sulphur-containing cycli...	01/27/1998
5608115	Polythiol useful for preparing sulfur-containing urethane-based resin and process for producing the same A novel polythiol having four or more functional groups, a process for producing the polythiol comprising reacting thiourea with a specific compound, a sulfur-containing urethane-based resin prepared from the polythiol and a lens made of the resin. The re...	03/04/1997
5600035	Positive photoactive compounds based on 2,6-dinitro benzyl groups and 2,5-dinitro benzyl groups Photoreactive compounds are synthesized from 2,5- or 2,6-dintrobenzyl groups. Also disclosed are methods of synthesizing reactive monomers containing 2,5- or 2,6-dintrobenzyl groups....	02/04/1997
5457235	Halogenated diphenyldiacetylene liquid crystals The present invention provides liquid crystals that are diphenyldiacetylenes of the general formulas: ##STR1## where W, X, Y and Z are, independently of one another, a halogen atom, a hydrogen atom or a trihalomethyl group, T1 and T2	10/10/1995
5352758	Mercapto compound, its preparation process, and sulfur-containing urethane resins and lenses using the same A mercapto compound represented by the following formula (1): ##STR1## is obtained by reacting, in the presence of a mineral acid, thiourea with a compound represented by the following formula (2): ##STR2## wherein X means a hydroxyl group or a ...	10/04/1994
5338886	Process for preparation of aromatic thiols Disclosed is a process for preparation of an aromatic thiol corresponding to the structure A-(SH)n wherein A is a substituted or unsubstituted aromatic radical and n is 1, 2, 3, 4, 5 or 6 comprising contacting at a temperature of at least 80° C. an aroma...	08/16/1994
5283312	Mercapto compound, its preparation process, and sulfur-containing urethane resins and lenses using the same A mercapto compound represented by the following formula (1): ##STR1## is obtained by reacting, in the presence of a mineral acid, thiourea with a compound represented by the following formula (2): wherein X means a hydroxyl group or a chlorine or b...	02/01/1994
5274182	Saturated, liquid isobutylene polymers terminally functionalized by special groups Saturated, liquid, low molecular weight and low-viscosity isobutylene polymers terminally functionalized by special groups, which correspond to the following formula ##STR1## are produced by solution ozonolysis of high molecular weight isobutyle...	12/28/1993
5216181	Liquid telechelic polymers having high 1,4-diene structure Liquid telechelic polymers are made from dienes and are produced via anionic polymerization. While having low molecular weight, for example less than 15,000, the telechelic polymers are generally gel-free, have high amounts of trans-1,4 structure, low vin...	06/01/1993
5210216	Calixarene and oxacalixarene derivatives and use thereof of sequestration metals Calixarene and oxacalixarene derivatives of the formula IV: ##STR1## wherein m'+m"=0-8 n=0-8 m'ࣙ1/2(m'+m") 3ࣘm'+m"+nࣘ8 if n=0, m'+m"ࣙ4 R3 is H, halogen, or hydrocarbyl, aryl, hydrocarbylaryl or a substituted derivative thereof and R	05/11/1993
5105028	Separation of hetero-atom(s) containing hydrocarbons Process for preparing one or more hetero-atoms containing hydrocarbons by contacting one or more hydrocarbons with a plasma-generated system derived from a source containing hydrogen atoms(s) and at least one hetero-atom in which process the plasma-genera...	04/14/1992
5095164	Process for cleaving alkyl tert.-alkyl ethers Alkyl tert.-alkyl ethers can be cleaved into the underlying alkanols and tert.-olefins in the presence of strongly acidic substances in a column apparatus, the strongly acidic substance being made available at the foot of the column. A particularly advant...	03/10/1992
5087759	Synthesis of vicinal alkanedithiols The invention relates to the manufacture of vicinal alkanedithiols from the corresponding alkylene trithiocarbonates. The method according to the invention consists in treating alkylene trithiocarbonate with an alkaline sulfide, followed by acidification of ...	02/11/1992
4985582	Pesticidal compounds Bicyclo-[2,2,1]-heptanes, bicyclo-[2,2,2]-octanes and bicyclo-[2,2,3]-nonanes, having 2 or 3 ring hetero atoms selected from O, S and N substituted at the 1-position by a carbocyclic group other than an alkynylphenyl group, and substituted at the 4-positi...	01/15/1991
4943662	Process for preparation of dithiols The invention relates to the synthesis of dithiols and more particularly that of ଱,ω-dithiols having 5 to 20 carbon atoms. The process according to the invention comprises reacting a di-(tertiary-alkylthio)alkane with hydrogen sulphide in the presence o...	07/24/1990
4857179	Ore flotation and mineral flotation agents for use therein A process for the recovery of minerals from an ore or concentrate containing the same wherein the minerals are recovered in a froth from an aqueous pulp containing the ore or concentrate and wherein one or more mineral flotation agents are employed in the...	08/15/1989
4835317	4-tert.-butyl-1,2-benzenedithiol, complex compounds derived therefrom, and a method of producing the same Novel compounds, 4-tert.-butyl-1,2-benzenedithiol and bis(4-tert.-butyl-1,2-dithiophenolate) metal complexes having the general formula of ##STR1## wherein M represents a trivalent transition metal, and A represents a quarternary ammonium are pr...	05/30/1989
4783285	Process for the nucleophilic substitution of unactivated aromatic and heteroaromatic substrates The nucleophilic substitution upon unactivated monocyclic or polycyclic aromatic or heteroaromatic substrates bearing suitable leaving groups can be achieved by catalyzing the substitution of said leaving groups by an anionic nucleophile with a cyclic or ...	11/08/1988
4721814	Mercaptan-containing polyphenols Compounds of formula I or II ##STR1## in which formulae R1 and R2 are each independently of the other hydrogen, alkyl, alkenylmethyl, cyclohexyl, phenyl, benzyl or tolyl, or are a --CH2 CHR3 --CH2	01/26/1988
4683091	Process for the nucleophilic substitution of unactivated aromatic and heteroaromatic substrates The nucleophilic substitution upon unactivated monocyclic or polycyclic aromatic or heteroaromatic substrates bearing suitable leaving groups can be achieved by catalyzing the substitution of said leaving groups by an anionic nucleophile with a cyclic or ...	07/28/1987
4631143	Triphenylene derivatives Triphenylene derivatives of the formula I ##STR1## wherein X1 to X6 are each, independently of one another, --SH, --SR, --SOR, --SO2 R or --S--COR, and each R is an alkyl group with up to 20 C atoms, it being possible...	12/23/1986
4542233	Process for preparing biaryl compounds via coupling of an arylamine with an arene Improvement in the process for preparing biaryl compounds via coupling of an arylamine with an arene in the presence of a nitrite, an acid and copper metal or a derivative thereof; the improvement is consisting in adding to the reaction mixture a trialkyl...	09/17/1985
4231970	Reaction products of unsaturated hydrocarbons with P₄ S₁₀ and PSX₃ Unsaturated hydrocarbons such as ethylene, propylene, butylene, pentene, cyclohexene and 1,3-butadiene among others are reacted with P4 S10 and PSX3, wherein X is selected from the group consisting of Cl and Br, under auto...	11/04/1980
4147643	Organic compositions useful as additives for fuels and lubricants Compositions useful as additives for fuels and lubricants can be made by reacting (A) an aromatic compound having an OH or SH group attached to an aromatic nucleus and an aromatic hydrogen atom (e.g., a substituted phenol wherein the substituent is an alk...	04/03/1979
4117017	Process for preparation of thiols using a benzopinacol initiator This invention relates to a process for preparing thiols and polythiols by the addition of a thiolcarboxylic acid, e.g., thiolacetic acid, to ethylenically unsaturated compounds in the presence of an initiator comprising a pinacol of the general formula: ...	09/26/1978
4101557	Selective synthesis of 2-haloalkanethiols and episulfides therefrom Haloalkanethiols are synthesized through the free radical liquid phase reaction of halogenated olefins with an excess of hydrogen sulfide. High product yields to the desired haloalkanethiol products are secured when a 3 to 20 fold molar excess of hydrogen...	07/18/1978
4088698	Production of thiophenols A method for preparing thiophenolic compounds is described comprising reacting a phenol and hydrogen sulfide in the presence of a vanadia catalyst. It is preferred to carry out the process of this invention at low pressures, i.e. at pressures lower than 1...	05/09/1978
4035506	Fluorocarbon dermal protective compositions Dermal protective compositions are disclosed which comprise a pharmaceutical extending medium having incorporated therein a substantive, dermally non-irritating compound which is a polyfunctional organic molecule containing one or more fluorocarbon-contai...	07/12/1977
4001279	Asymmetric macrocycles containing oxygen and binaphthyl ring members Chiral, hinged and functionalized host multiheteromacrocycles of the oxygen, nitrogen and sulfur-containing type are disclosed possessing holes sized to afford selective complexation of specific guest substances and shapes to recognize chirally guest mole...	01/04/1977
4000078	Reaction product of 1,5,9-decatriene and hydrogen sulfide as lubricant anti-wear additives Improved anti-wear additives for lubricants are provided which additives comprise the reaction product obtained by the reaction of 1,5,9-decatriene and hydrogen sulfide. Lubricating oil compositions containing said additives are also provided....	12/28/1976
3994980	Cobalt molybdate as catalyst for preparation of mercaptans from carbonyl compounds hydrogen sulfide and hydrogen Mercaptans are prepared by reacting an organic carbonyl compound with sulfur or hydrogen sulfide in the presence of a catalyst consisting essentially of cobalt, molybdenum and an inorganic oxide support material....	11/30/1976
3992289	Method for production of sulfhydryl compounds using ultra-violet radiation An improved process is disclosed for production of sulfhydryl-terminated compounds by reaction of an allene and hydrogen sulfide initiated with ultraviolet light of wavelength above about 2600 Angstroms to obtain a colorless product of improved purity. Th...	11/16/1976

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Class 568/66 - Polythiol