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5362317 |
Sealant compositions and process for sealing aluminum oxide films
Aluminum oxide sealant compositions, concentrates, and processes employing the same are described which comprise an alkaline earth metal salt and certain sulfonated compounds. Unexpected...
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5233081 |
Method for sulfonation using porous absorber material
A method for preparing a sulfonated compound with minimal or no waste products using a porous inorganic material absorber. The absorber is saturated with a compound to be sulfonated and then...
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5206427 |
Process for the preparation of aromatic (di)chlorosulphonic acids and (di)bromosulphonic acids
Aromatic (di)chlorosulphonic acids and (di)bromosulphonic acids can be prepared by reacting aromatic sulphonic acids with chlorine or bromine respectively, the reaction advantageously being carried...
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4620950 |
Process for preparing aryl sulfone sulfonic acids
A process for preparing aryl sulfone sulfonic acids by reacting an aryl sulfone in the molten state with sulfur trioxide under substantially anhydrous conditions.
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4386037 |
Sulphonic acids of tolyl ether sulphones
The present invention relates to sulphonic acids of ditolylether sulphones of formula I ##STR1## in which n is 0 to 6, each of x and y, independently, is 0 or 1 with the proviso that x+y is at...
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4366079 |
Sulfonated rubrene and aqueous chemiluminescent compositions containing the same
Water-soluble sulfonated rubrenes are used as fluorescer components in water-soluble chemiluminescent mixtures and particularly in combination with a water-soluble amide of oxalic acid which reacts...
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4357281 |
Alkylated biphenylyl phenyl ether sulfonates
The title compounds are of the formula ##STR1## wherein R is an alkyl radical of at least 6 carbon atoms and each R can be the same or different; M♁ is hydrogen, alkali metal ion, alkaline...
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4325890 |
Phenol-formaldehyde condensates, their preparation and their use as dispersing agents, liquefaction agents and tanning agents
Polycondensates of phenols and formaldehyde which contain sulphonic acid groups and salts thereof bonded to the phenol either directly or via a methylene bridge are prepared by reacting a...
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4288386 |
Ullmann reaction for the synthesis of diaryl ethers
The Ullman reaction for the preparation of diaryl ethers by coupling aryl halides with metal phenolates is conducted in the presence of at least one tertiary amine sequestering agent having the...
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4245996 |
Condensation products of terphenylsulphonic acids, naphthalenesulphonic acids, bis-(4-hydroxyphenyl) sulphone and formaldehyde
Condensation products which are obtained by co-condensation, in an acid aqueous medium, of terphenylsulphonic acids, naphthalenesulphonic acid, bis-(4-hydroxyphenyl) sulphone and compounds which...
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4202838 |
Sulphonated condensation products
Sulphonated condensation products which are obtained, irrespective of sequence, by reaction of an aromatic compound that contains at least two replaceable hydrogen atoms in the nucleus with a...
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4046806 |
Method of preparing a disalt of 3,3-sulfonylbis (6-hydroxybenzene sulfonic acid)
When 4,4'-dihydroxydiphenyl sulfone is sulfonated to form 3,3'-sulfonylbis(6-hydroxybenzene sulfonic acid), the product can be recovered from the reaction mixture by adding methanol or ethanol and...
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3994963 |
Schaeffer salt purification
A process for recovering purified Schaeffer's Salt from a sulfonation mixture is disclosed wherein unreacted 2-naphthol is removed by activated carbon treatment, 6,6'-oxybis(2-naphthalene sulfonic...
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3888913 |
Novel cyclic sulphones and derivatives thereof
Levelling agents for dyeing anionic dyestuffs are constituted by diphenylene ioxide sulphones, hydroxydiphenylene oxide sulphones, diphenyl oxide sulphones, diphenyl sulphide sulphones, mixtures of...
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3873606 |
SULFONE SALTS DERIVING FROM 2,5-DIHYDROXY BENZENE MONOSULFONIC AND 2,5-DIHYDROXY BENZENE DISULFONIC ACIDS
Sulfone salts deriving from 2,5-dihydroxy benzene monosulfonic and 2,5-dihydroxy benzene disulfonic acids have the general formula: ##SPC1## Wherein R is an aryl, alkylaryl or aralkyl radical, and...
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3627758 |
STYRYL-NAPHTHALENE DERIVATIVES
The invention relates to new styryl-naphthalene derivatives which are useful as optical brighteners. These new compounds are bis-styryl-naphthalenes containing in at least one of their ring systems...
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3547988 |
PROCESS FOR THE PREPARATION OF DIALKALI DIHYDROXYBENZENE DISULFONATES
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3538151 |
DIPHENYLOXIDE SULFONE SULFONIC ACIDS
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3529015 |
ALKYLHALODIPHENYL OXIDE SULFONATES
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3505265 |
PROCESS FOR THE PREPARATION OF ESSENTIALLY WATER-INSOLUBLE ADDITION POLYMERS IN AQUEOUS DISPERSION
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3488284 |
ORGANIC METAL COMPOSITIONS AND METHODS OF PREPARING SAME
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3423452 |
SYNTHETIC TANNING AGENTS FOR PRODUCING SHRUNKEN GRAIN LEATHER
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3412022 |
Scrouping agent for bulked multifilament yarns
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3394175 |
4, 4'-bis (heptafluoroisopropyl)-diphenyl ether-2, 2'-disulfonic acid and alkali metal salts thereof
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3264242 |
Aqueous dispersions containing alkylated diphenyloxidedisulfonic acid and a non-ionic surface active agent
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3252856 |
Alkylhalodiphenyl oxide sulfonates as microbiocides
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3247245 |
Alkylated polyphenyl ether sulfonates
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3159684 |
Process for preparing polyphenyl ethers
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3127441 |
Process for making substituted diphenyl ether sulfonates
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3110683 |
Process of inhibiting corrosion
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2992999 |
Dry cleaning solvent containing haloalkyldiphenyl oxide sulfonates
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2990375 |
Heavy duty liquid detergent compositions
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2898267 |
Emulsifiable toxicant compositions and emulsifying agents therefor
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2854477 |
Method of making alkyl diphenyl ether sulfonates
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3712919 |
Title is not available
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3663509 |
Title is not available
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