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7622613 |
Thiol compound and photosensitive composition using the same
The present invention relates to a thiol compound represented by formula (1): wherein R 1 , R 2 and n have the same meanings as in the specification, method for producing the compound, and to a...
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7456323 |
1,3-bis(3-formyl-4-hydroxyphenyl)adamantanes and polynuclear polyphenols derived therefrom
A new 1,3-bis(3-formyl-4-hydroxyphenyl)adamantane, which provides a material offering excellent properties such as heat resistance and mechanical strength for use as an intermediate material for...
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7446234 |
Bisphenol compound and process for preparation thereof
The present invention provides a novel bisphenol compound of formula (I).
wherein R 1 and R 2 are the same or different and are independently either hydrogen or methyl at each occurrence. The...
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7414160 |
Process for producing aromatic compounds
A process produces an aromatic compound by bringing an aromatic compound (B) into contact with molecular oxygen (C) in the presence of a catalyst (A) comprising at least one of (A1) a...
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7291756 |
Method for producing molecular compound
A method for producing a molecular compound which comprises mixing and kneading a solid host compound and a solid or liquid guest compound by using a kneader and optionally followed by extruding...
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7126031 |
Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance...
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7125951 |
Monomers containing at least one biaryl unit and polymers and derivatives prepared therefrom
The invention relates to bisphenol monomers containing one or more biaryl units and related polymers, derivatives and resins thereof and more particularly to Bisphenol monomers containing two...
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7119123 |
Antimicrobially active 4-methyl-4-aryl-2-pentanols, their preparation and use
Antimicrobially active 4-methyl-4-aryl-2-pentanols of the Formula 1 below, methods for the preparation of these compounds and their use as antimicrobial active compounds are described.
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7087799 |
Amino group containing phenol derivative
An object of the present invention is to provide a material which resolves the drawbacks associated with polyimide polymers, and yet retains the advantages offered by conventional polyimide...
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7019179 |
Process for producing aromatic compounds
A process produces an aromatic compound by bringing an aromatic compound (B) into contact with molecular oxygen (C) in the presence of a catalyst (A) comprising at least one of (A1) a...
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6906226 |
Hydroxymethyl-substituted polyfunctional phenols
Hydroxymethyl-substituted polyfunctional phenols, expressed by the following structure:
General structure (I)
(wherein X represents: bivalent group (a) expressed by the following structure:
...
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6872858 |
Diphenol and process for producing the same
The invention provides a diphenol represented by the general formula (I)
wherein X is a divalent cyclic hydrocarbon group selected from 1-cyclohexene-1,4-ylene group, 1,4-cyclohexylene group...
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6620978 |
Positive photoresist composition and process for synthesizing polyphenol compound
The present invention provides a positive photoresist composition including (A) an alkali-soluble resin and (B) a photosensitizer, and the ingredient (B) is a quinonediazide ester of, for example,...
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6358431 |
Calixarenes
A method of imparting a water repellent surface to a hydrophilic substrate which comprises contacting the substrate with a solution or dispersion of a suitable calixarene in a liquid medium.
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6344505 |
Mono- and bis-benzotriazolyldihydroxybiaryl UV absorbers
Provided is a composition which contains a mono- or bis-benzotriazole compound, an N-oxide thereof, or a mixture of at least two of the preceding compounds. Representative bis-benzotriazole...
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6326522 |
Process for production of 1,3-di(2-p-hydroxyphenyl-2-propyl)benzene
The invention provides a process for production of 1,3-di(2-p-hydroxyphenyl-2-propyl)benzene which comprises: reacting 1,3-di(2-hydroxy-2-propyl)benzene with phenol in an amount of 4-6 times in...
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5866724 |
Positive resist composition and photosensitizers
A positive photoresist compositions comprising, as a photosensitizer, a quinonediazide sulfonic acid ester of a phenol compound represented by the following formula (I): ##STR1## wherein Q 1 , Q 2...
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5770763 |
Difunctional bitricyclodecatriene monomers
Novel difunctionalized cyclobutabenzene monomers of the general formula: ##STR1## wherein Z can be hydrogens or a cyclobutane ring; and X and Y are carboxyl, amino, alcohol, isocyanate, acid...
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5744653 |
Method for preparing 1,3-dihydroxy-4,6-bis(α-methyl-α(4'-hydroxyphenyl)ethyl)benz ene
A method for preparing 1,3-dihydroxy-4,6-bis α-methyl-α-α(4'-hydroxyphenyl)ethy l!benzene represented by the following formula (1): ##STR1## comprising the step of initiating a reaction of...
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5698600 |
Process for the production of bisphenols with the use of new cocatalysts
The invention relates to the synthesis of bisphenols from monophenols and carbonyl compounds such as aldehydes and ketones with concentrated mineral acids such as hydrochloric acid and/or hydrogen...
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5618984 |
Phenol aralkyl resins, preparation process thereof and epoxy resin compositions
An allyletherificated phenol aralkyl resin is obtained through the reaction of a phenol aralkyl resin with an allyl halide in the presence of a base in an organic solvent at room temperature to...
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5541282 |
Aromatic polyhydroxy compounds and process for the preparation thereof
The invention involves aromatic polyhydroxy compounds, including triaromatic bisphenols and tris-[1,1,1-(4-hydroxyphenyl)] toluenes, and a process for the preparation thereof by reacting a phenolic...
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5493060 |
Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane
This invention provides a unique method of producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane ("BPTMC"). The disclosed method manufactures BPTMC from ketals and hemithioketals of...
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5406003 |
Phenolic compounds
A phenolic compound is provided which can be described by the formula ##STR1## in which Ar is a C 6 -20 aromatic moiety, L is a cyclohexanenorbornane linking moiety, L' is a divalent cycloaliphatic...
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5364977 |
Clathrate compounds comprising tetrakisphenols as host
The present invention provides novel clathrate compounds using tetrakisphenols as host. The clathrate compounds are obtained easily and efficiently by reacting tetrakisphenols represented by the...
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5340937 |
Avoiding sulfonic phenols in production of phenols
This invention includes an improved process of converting a phenate to a phenol using acid in which a two phase system having an aqueous phase containing phenate and an organic, phenol-containing,...
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5336752 |
Method for producing phenolic resin
A method is provided for producing a phenolic resin represented by the formula (I) ##STR1## wherein R 1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R 2 is a divalent cyclic...
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5319149 |
Bis[4'-(4-hydroxyphenyl)-phenyl]alkanes and polycarbonates prepared therefrom
Bis[4-(4-hydroxyphenyl)-phenyl]alkanes, as illustrated by 2,2-bis[4-(4-hydroxyphenyl)-phenyl]propane, may be prepared by the reaction of a bisphenol A ester or a similar compound with a...
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5306748 |
Fluorine-modified thermosetting resin and thermosetting resin composition
Fluorine-modified thermosetting reins are available as phenolic or epoxy resins having trifluoromethyl groups and a naphthalene skeleton in a molecule. They are useful as components of resin...
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5300698 |
Process for the prepartion of 1,3,5-tris(4'-hydroxyaryl)benzene
Novel 4-substituted acetophenone anils and methods for preparing 1,3,5-tris(4'-hydroxyphenyl)benzenes from 4-substituted acetophenones such as 4-hydroxyacetophenones or, from substituted...
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5283374 |
Selected phenolic derivatives of 4-(4-hydroxyphenyl)-cyclohexanone and their use as sensitivity enhancers for radiation sensitive mixtures
A radiation-sensitive composition comprising an admixture in a solvent of: at least one alkali-soluble binder resin, at least one photoactive compound and an effective sensitivity enhancing amount...
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5276213 |
Special dihydroxydiphenyl bicycloalkanes, their production and their use for the production of high molecular weight polycarbonates
Dihydroxydiphenyl bicycloalkanes characterized in that they contain 9 to 13 ring C atoms in the bicycloaliphatic component are disclosed. The disclosed compounds were found to be suitable for the...
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5248838 |
Process for preparing bisphenol fluorene compounds
A process for preparing bisphenol fluorene products which comprises reacting fluorenone with a phenol compound in the presence of an acidic condensing agent in a solution of an organic liquid...
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5236608 |
Alkyl phenol-sulfur condensates as fuel and lubricating oil additives
Additives for improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and...
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5219978 |
Poly(arylene ether)from 9,9-bis(3,5-diphenyl-4-hydroxyphenyl)fluorene
9,9-Bis(3,5-diphenyl-4-hydroxyphenyl)fluorene a novel compound can be used to produce amorphous poly(arylene ethers) which have high glass transition temperatures and good thermo-oxidative...
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5210328 |
Process for the preparation of substituted cycloalkylidene bisphenols
This invention relates to a process for the preparation of substituted cycloalkylidene bisphenols from phenols and special cycloalkanones in the presence of acid condensation catalysts and in the...
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5169990 |
Preparation of 9,9-bis-(4-hydroxyphenyl)-fluorene
In the production of 9,9-bis-(4-hydroxphenyl)-fluorene by condensation by fluorenone and phenol in a molar ratio of 1:4 to 1:8 at 30° to 90° C. in the presence of gaseous hydrogen chloride and...
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5151531 |
Dihydric phenols
Dihydric phenol suitable for the preparation of polycarbonates are represented by the following formula: ##STR1##
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5146006 |
Process for preparing tetraphenoic compounds
A process is disclosed for preparing a tetrakisphenol by the reaction of a dialdehyde with a phenolic compound in the presence of a cationic exchange resin catalyst, and then subjecting a solution...
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5118874 |
Partially fluorinated biphenyls, processes for their preparation and their use
Compounds of the formula ##STR1## in which, independently of one another, each R is OH or lower alkyl having 1-4 carbon atoms and each R' is hydrogen or lower alkyl having 1-4 carbon atoms, are...
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5110994 |
Process for synthesizing 9,9-bis-(hydroxyphenyl)fluorene
The invention concerns a process for synthesizing 9,9-bis(hydroxyphenyl)fluorene by reacting fluorene with excess phenol using a liquid catalyst prepared by dissolving aluminum trichloride in an...
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5110993 |
9,9-bis(3,5-diphenyl-4-hydroxyphenyl)fluorene and poly(arylene ethers)
9,9-Bis(3,5-diphenyl-4-hydroxyphenyl)fluorene a novel compound can be used to produce amorphous poly(arylene ethers) which have high glass transition temperatures and good thermo-oxidative...
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5105025 |
2',4,4"-m-terphenyltriols and fungal strain used to make same
A. parasiticus is employed to hydroxylate 2'-hydroxyterphenyl compounds to terphenyltriols, which can be used to form branched polycarbonates. The hydroxylation reaction is enhanced by maintaining...
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5087766 |
Process for producing allyl-substituted phenol compound and the product
A process for producing an allyl-substituted phenol compound is described, which comprises a combination of a first step in which a phenol is reacted with an allyl halide in the presence of an...
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5082470 |
Alkyl phenol-formaldehyde condensates as fuel additives
Additives for improving the low temperature flow properties of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and aldehyde, wherein: (a) the...
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5043483 |
Process for the alkylation of phenols
Process for the alkylation of phenols comprising reacting a phenol with a vinyl-aromatic hydrocarbon in the presence of an acidic catalyst and of a solvent.
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5039437 |
Alkyl phenol-formaldehyde condensates as lubricating oil additives
Additives for improving the low temperature flow properties of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and aldehyde, wherein: (a) the...
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4994628 |
Phenolic antioxidant process
3,5-dialkyl-4-hydroxybenzyl-substituted benzene compounds are made by reacting 2,6-dialkyl-4-methoxymethyl phenols with a benzene compound having an unsubstituted nuclear position in an inert...
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4992596 |
Selected trinuclear novolak oligomers and their use in photoactive compounds and radiation sensitive mixtures
A trinuclear novolak oligomer of the formula (I): ##STR1## wherein each X is selected from the group consisting of hydroxyl group and halide group and Y is selected from the group consisting of a...
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4992597 |
Antioxidant process
3,5-dialkyl-4-hydroxybenzyl-substituted benzene compounds are made by reacting 2,6-dialkyl-4-methoxymethyl phenols with a benzene compound having an unsubstituted nuclear position in an inert...
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