| Patent Number |
Title Of Patent |
Date Issued |
| 4753754 |
Concentrated aqueous surfactant compositions |
June 28, 1988 |
| Surfactant mixtures are prepared in a fluid "G" phase of more than 50% concentration, the mixtures comprise different surfactant products selected respectively from at least two of the following classes, that is to say alkyl sulphates, alkyl ether sulphates, olefin sulphonates, alkyl |
| 4673509 |
Biocidal water treatment |
June 16, 1987 |
| The growth of microbiological contaminants in industrial cooling and process waters and in aqueous based products, susceptible to microbiological spoilage on storage, is inhibited by the presence of a phosphorus compound having a hydroxy alkyl group directly attached to the phosphoru |
| 4659497 |
Liquid detergent compositions |
April 21, 1987 |
| Pourable, fluid, non sedimenting, laundry detergent composition, comprising water, surfactant, builder, a surfactant desolubilizing electrolyte and, optionally, the usual minor ingredients, consist essentially of: at least one predominantly aqueous liquid phase which is separable into a |
| 4655787 |
Deposition processes: incorporating solvent dye into electrophoretic resin on metal surface |
April 7, 1987 |
| A process for the deposition of a film of an electrophoretic resin upon the surface of a substrate which comprises the steps of(i) electrophoretically depositing from a bath comprising water, a water miscible organic solvent and the resin, a film of the resin upon the surface of the subs |
| 4618446 |
Spherulitic liquid detergent composition |
October 21, 1986 |
| Liquid detergent compositions suitable for laundry use consist essentially of water, Electrolyte, Active Ingredient and preferably a Builder. They comprise a space-filling, floc-like aggregate of surfactant containing spherulites, substantially cocontinuous with an aqueous liquid micella |
| 4515704 |
Pourable non-sedimenting aqueous based detergent composition having an organic lamellar structur |
May 7, 1985 |
| Pourable, fluid, non sedimenting, laundry detergent composition, comprising water, surfactant, builder, a surfactant desolubilizing electrolyte and, optionally, the usual minor ingredients, consist essentially of : at least one predominantly aqueous liquid phase which is separable into a |
| 4494951 |
Flameproofing textiles |
January 22, 1985 |
| The cure efficiency for the treatment of fabrics with tetra(hydroxymethyl) phosphonium compounds and their precondensates e.g. with urea especially from THP sulphate, is improved by passing gaseous ammonia through impregnated fabric then wetting the fabric and completing the cure with |
| 4440665 |
Concentrated aqueous surfactant compositions |
April 3, 1984 |
| Aqueous surfactant mixtures comprising a first amphoteric surfactant and at least one non-ionic surfactant and/or at least one amphoteric surfactant non-homologous with the first amphoteric surfactant, are obtained at a concentration substantially higher than previously obtainable by pre |
| 4383898 |
De-watering of metal surfaces |
May 17, 1983 |
| After a metal finishing treatment by means of an aqueous solution that forms a surface of free metal, or comprising metal ions, exposed to the environment, the surface is rinsed, contacted with a soap solution and subjected to a final rinse. The treatment provides enhanced corrosion |
| 4382066 |
Uranium extraction process |
May 3, 1983 |
| Uranium is extracted from wet process phosphoric acid by extraction with a mixture of a diorganophosphate and a neutral phosphorus compound, which is preferably a triorgano phosphine oxide, in the presence of nitrate to form an organic extract layer containing uranium and an aqueous acid |
| 4340700 |
Process for preparing a phenolic resin from an aralkylene ether and an aromatic aldehyde |
July 20, 1982 |
| A process for preparing a resin containing phenolic groups, in which an aralkylene ether of formula ROCH.sub.2.Ar. CH.sub.2 OR, wherein Ar represents a phenylene group and R is an alkyl group of 1-4 carbon atoms, is reacted with a phenol containing 1-3 hydroxyl groups and at least 2 |
| 4325928 |
Rock treatment process |
April 20, 1982 |
| Phosphate rock can be heat treated at 380.degree.-600.degree. C. to convert the organics to filterable carbon and the rock converted to wet process phosphoric acid of reduced color and with reduced foaming. Rocks having high acid soluble organics but low total organics, and rocks contain |
| 4318821 |
Polymeric compositions |
March 9, 1982 |
| A composition of (a) of product of condensing a phenylene di- or tri(methyl halide) or di- or tri-(methyl alkoxy ether) with a molar excess of a phenol and (b) 10-20% of hexamethylene tetramine is curable and can be used in the preparation of moulding compounds, laminates and coating |
| 4304932 |
Process for producing novel carboalkylated surface active agents and product |
December 8, 1981 |
| The reaction of an imidazoline base of the formula: ##STR1## wherein R represents an aliphatic group comprising from 6 to 22 carbon atoms and R.sub.1 represents a substituted or unsubstituted alkyl or alkenyl group comprising 1 to 4 carbon atoms, with a carbo-alkylating agent is |
| 4296082 |
Purification of wet process phosphoric acid |
October 20, 1981 |
| Wet process phosphoric acid is heated by passing alternating current through the acid, preferably in carbon apparatus to concentrations above 76% P.sub.2 O.sub.5 and preferably temperatures above 500.degree. C. to remove sulphate and fluoride and convert organic and basic impurities into |
| 4277455 |
Process for purifying phosphoric acid |
July 7, 1981 |
| Wet process phosphoric acid is purified by extraction with a hexanone of pentanone to form an organic extract, containing phosphoric acid, from which the acid content is recovered by treatment with water or aqueous phosphoric acid in 2 or more portions to give 2 or more purified acids, |
| 4261916 |
Sulph(on)ation process |
April 14, 1981 |
| An orifice plate mixer for mixing 2 fluids has an axial orifice perpendicular to the plate through which bore a first fluid passes and a port in the internal wall of the orifice through which the second fluid passes. The mixer can impart high turbulence to the first fluid and is espe |
| 4231949 |
Process for preparing organotin esters |
November 4, 1980 |
| Organotin esters from acid esters of di or poly carboxylic acids are made by adding a base to a mixture of an organotin halide and the acid ester in the presence of water, and reacting to form the organotin ester, the amount of base and acid ester being to provide 0.9-1.3 equivalents and |
| 4226796 |
Sulph(on)ation process |
October 7, 1980 |
| Sulph(on)ation of organic feedstocks is performed with undiluted sulphur trioxide in a recycle loop reactor in which the feedstock is diluted with its recycled sulph(on)ation product, contact of the feedstock and sulphur trioxide occurs under conditions of turbulent flow and the recycle |
| 4215098 |
Purification of wet process phosphoric acid |
July 29, 1980 |
| Wet process phosphoric acid is heated, preferably in carbon apparatus, by passing alternating current through the acid, to concentrations above 80% P.sub.2 O.sub.5 and preferably temperatures above 500.degree. C. to remove sulphate and fluoride and convert organic and basic impurities in |
| 4212983 |
Manufacture of imidazoline compounds |
July 15, 1980 |
| The invention provides a process for reducing the diamide content of imidazolines having the formula: ##STR1## wherein R represents an aliphatic group having from at least 4 carbon atoms and R.sub.1 represents an alkyl or alkenyl group having from 1 to 4 carbon atoms.The mixture |
| 4181791 |
Process for preparing aralkylene phenol resins prepared from phenols and aralkylene esters |
January 1, 1980 |
| Aralkylene phenol resins, curable to thermoset polymers are made by reacting an aralkylene ester of formula R'(CH.sub.2 OYR,).sub.a, where R' is aromatic, Y is carbonyl or sulphonyl and R' is alkyl or aryl, a is 2 or 3 with a molar excess of a phenol or mixture thereof with a non-phenoli |
| 4179458 |
Process for preparing organotin compounds |
December 18, 1979 |
| Organotin compounds comprising at least 50% and often at least 90% tetraorganotin compound and the remainder triorganotin halide, which are suitable for conversion to organotin precursors of stabilizers for polymers or fungicides, are made by reacting an alkyl or alkenyl halide with |
| 4174346 |
Process for preparing organotin compounds |
November 13, 1979 |
| Tricycloalkyltin chlorides e.g. tricyclohexyltin chlorides, which may be converted to the fungicide tricyclohexyl hydroxide, are made by reacting an organic tricycloalkyltin, in which the organic is not cycloalkyl and cycloalkyl is optionally substituted cyclohexyl, with organic tin |
| 4166719 |
Testing of aqueous solutions |
September 4, 1979 |
| Aqueous solutions such as chromium plating solutions are tested by contacting the solution with a water permeable medium such as a folded filter paper, causing the solution to diffuse upwardly through the medium and contacting separate portions of the diffusing solution in the medium |
| 4145463 |
Flameproofing of textiles |
March 20, 1979 |
| A process for flameproofing cellulosic fabrics which comprises impregnating the fabric with an aqueous solution of a THP salt with or without condensation with a nitrogen-containing compound, and treating the impregnated fabric with ammonia to produce a cured resin, wherein the treat |
| 4139487 |
Mixed tri-aryl (phenyl and alkylphenyl) phosphate esters |
February 13, 1979 |
| A composition consisting essentially of liquid mixed phenyl alkylphenyl phosphate having the average general formula (RO).sub.3 PO wherein from 30 to 85 mole-percent of the "R" group are secondary alkylphenyl groups, wherein the secondary alkyl group has from 3-4 carbon atoms, and the |
| 4132540 |
Process for removing solvent from the raffinate of extracted phosphoric acid and for preparing p |
January 2, 1979 |
| When crude wet process phosphoric acid is solvent extracted, an aqueous raffinate containing phosphoric acid and a small amount of solvent is produced as a by-product. Certain materials are added to the raffinate, in order to produce two phases, one aqueous and the other of solvent. The |
| 4105566 |
Dispersion for timber treatment |
August 8, 1978 |
| The invention provides a homogenous stable aqueous dispersion containing an organo-tin biocide and certain ammonium polyphosphate flame retardants which can be diluted and used to treat timber. The compositions further comprise a quaternary ammonium compound having surfactant activity, a |
| 4096131 |
One pack polysulphide sealants |
June 20, 1978 |
| Moisture curable extrudable polysulphide sealants comprise the reaction product of (a) a silanized polysulphide obtained by reacting an SH terminated polysulphide with a silane having 2 or 3 hydrolyzable groups and 1 or 2 groups capable of reacting with the SH group in order to cover |
| 4093662 |
Ether phosphoric acid compound |
June 6, 1978 |
| A solid anhydrous crystalline compound of the formula H.sub.3 PO.sub.4 [(CH.sub.3).sub.2 CH].sub.2 O. The invention also provides a method of preparing phosphoric acid by evaporating diisopropyl ether off said anhydrous crystalline compound under reduced pressure. |
| 4092340 |
Process for preparing organotin compounds |
May 30, 1978 |
| Tetraalkyltin compounds substantially free from tin, tin alkyl and di alkyl contaminants are prepared by reacting an alkyl halide of 1 - 4 carbon atoms with tin in the presence of an 'onium salt e.g. a quaternary ammonium halide and at least 0.5 g atom of zinc per g atom of tin, and |
| 4081333 |
Method and apparatus for distillation |
March 28, 1978 |
| Phosphorus is recovered from phosphorus mud by introducing a skip of phosphorus mud into a furnace, closing the furnace and contacting the skip inside the furnace with a pool of molten lead. Phosphorus vapour is distilled from the mud and recovered. |
| 4071603 |
Process for preparing phosphoric acid |
January 31, 1978 |
| In a process for preparing phosphoric acid by contact of sulphuric acid and phosphate rock with filtration of the gypsum slurry and recycle of the rest for contact with fresh rock, a fraction of the recycle slurry is treated with sulphuric acid to convert at least some of the gypsum to |
| 4069279 |
Dialkylphenol phosphorylation |
January 17, 1978 |
| A process of manufacturing triaryl phosphate mixtures which comprises:1. reacting a phosphorylation agent with a recycle composition of phenols, optionally in the presence of an additional composition of phenols, the total molar proportion to atoms of phosphorus in the phosphorylating agent |
| 4053374 |
Chromium electroplating baths |
October 11, 1977 |
| In trivalent chromium electroplating baths of the type which comprise an aqueous solution of a complex of trivalent chromium with a carboxylic acid such as a glycolic acid and a halide such as a chloride, the invention provides an improvement by adding ammonia to the baths in a proportio |
| 4038160 |
Method of regenerating a chromium electroplating bath |
July 26, 1977 |
| Trivalent chromium electroplating baths which have developed characteristic faults due to accumulation of trace metal contaminants are treated with just sufficient of a water soluble ferrocyanide to restore the bath to normal working order. |
| 4020090 |
Organotin compounds |
April 26, 1977 |
| Novel organotin compounds exhibit the general formula ##STR1## where R and R.sub.1 are individually selected from the group consisting of C.sub.1 and C.sub.12 alkyl groups, cycloalkyl radicals and phenyl radicals; X is a group of the formula ##STR2## wherein R' is a hydrogen, |
| 4020035 |
Resin compositions |
April 26, 1977 |
| Compositions of at least 50% by weight of a resin having repeat units of formula ##STR1## WHEREIN Ar.sup.x is a divalent or trivalent aromatic hydrocarbyl group, optionally substituted, Ar is a phenol residue, and n is 0 or 1 and up to 50% (based on the total weight of resins) of |
| 4019916 |
Air entraining agents |
April 26, 1977 |
| It is known to mix cement, mortar and the like in the presence of an air entraining agent. According to the invention a water soluble sulphosuccinamate is employed as the air entraining agent. A particularly preferred air entraining composition is provided comprising a water soluble |
| 3994480 |
Mixing method |
November 30, 1976 |
| A method for mixing liquids and solids to form a mixture, and preferably nitrogen phosphorus potassium fertilizers in which the liquid is introduced tangentially into a mixer to establish a continuous vortex and the solids in the form of a stream are deflected from the central portion |
| 3987005 |
Organotin compounds |
October 19, 1976 |
|
| 3984525 |
Manufacture of phosphoric acid |
October 5, 1976 |
| Production of phosphoric acid by the wet process and by-product calcium sulphate hemihydrate. Sulphuric acid reacts with phosphate rock in such conditions that gypsum is precipitated, the resulting slurry is transferred to a second vessel in which the conditions are such that the gyp |
| 3978102 |
Novel diorganotin maleate half esters and process for preparing same |
August 31, 1976 |
| Organotin compounds with low tin content suitable as stabilizers for halogen containing resins e.g. polyvinyl chloride are of formula ##EQU1## where R.sub.1 and R.sub.2 are C.sub.1-20 alkyl, cycloalkyl or phenyl groups, Q.sub.1 represents a radical selected from the group consisting |
| 3978023 |
Stabilization of polymeric compositions |
August 31, 1976 |
| Halogenated vinyl resins such as poly(vinyl chloride) (P.V.C.) are stabilized against degradation by the addition of stabilizers comprising specified monoorganotin sulfur-containing compounds, for example the reaction product of a mono-organotin tris mercapto carboxylic acid ester an |
| 3972908 |
Organotin compounds |
August 3, 1976 |
| Organotin compounds of formula ##EQU1## where a is 0 or 1, x, x', y and y' are 1-6, R.sub.1, R.sub.2 R.sub.6 and R.sub.7 are C.sub.1-12 alkyl, cycloalkyl, aromatic or aralkyl hydrocarbyl, R.sub.4 and R.sub.9 are as defined for R.sub.1 or are C.sub.13-21 alkyl, C.sub.2-21 alkenyl |
| 3965211 |
Curable composition of resin, cycloaliphatic epoxide and an amino compound |
June 22, 1976 |
| A curable composition comprising (a) a resin containing free hydroxyl groups which is obtained by the reaction of a compound of formula R'(CH.sub. 2 X).sub.a, wherein R' is a divalent or trivalent aromatic hydrocarbon or a di(aromatic hydrocarbon) ether, X is an alkoxy group of 1 to |
| 3960611 |
Coating compositions with magnesium phosphate pigment |
June 1, 1976 |
| Pigments containing a magnesium phosphate as a component of an active pigment to be used in an anti-corrosive paint have been found to be especially useful when the pigment is present in a pigment volume concentration of from 20 to 30%. It has also been discovered that the proportion |
| 3954574 |
Trivalent chromium electroplating baths and electroplating therefrom |
May 4, 1976 |
| It is known to attempt to plate chromium from a solution containing trivalent chromium salts and organic complexants. The invention provides an aqueous chromium electroplating system containing trivalent chromium, together with both a formate or acetate and a bromide. Optionally the |
| 3947499 |
Phosphoric acid purification |
March 30, 1976 |
| A solid anhydrous 1:1 molar compound of phosphoric acid and diisopropyl ether is prepared from a mixture of the ether and phosphoric acid in a molar ratio (R:1) of 0.6:1 to 1.4:1 at a temperature at least as low as the crystallization temperature (T.degree.C) governed by the relationship |
