| Patent Number |
Title Of Patent |
Date Issued |
| 6200586 |
Biocidal and agrochemical suspensions |
March 13, 2001 |
| A suspension comprising an aqueous structured surfactant having suspended therein particles or droplets of a substantially water insoluble or sparingly soluble biocidal or agrochemical active substance in a weight ratio of total surfactant to said active substance of less than 20:1. |
| 5964692 |
Functional fluids and liquid cleaning compositions and suspending media |
October 12, 1999 |
| Aqueous structured surfactants, e.g., lamellar, or preferably spherulitic systems optionally containing suspended solids are used as functional fluids, such as drilling fluids, cutting fluids, hydraulic fluids, heat transfer fluids, construction muds and lubricants. A composition con |
| 5952285 |
Concentrated aqueous surfactant compositions |
September 14, 1999 |
| A liquid detergent composition containing water; surfactant in a concentration which would in the absence of electrolyte form a pourable hexagonal, or cubic phase at 20.degree. C.; and sufficient dissolved electrolyte to form a substantially Newtonian or optically isotropic liquid. |
| 5807810 |
Functional fluids and liquid cleaning compositions and suspending media |
September 15, 1998 |
| Aqueous structured surfactants, e.g., lamellar, or preferably spherulitic systems optionally containing suspended solids are used as functional fluids, such as drilling fluids, cutting fluids, hydraulic fluids, heat transfer fluids, construction muds and lubricants. A composition con |
| 5741757 |
Biocidal mixture of tetrakis (hydroxymethyl) phosphonium salt and a surfactant |
April 21, 1998 |
| The biocidal activity of THP (tetrakis hydroxymethyl phosphonium) compounds is synergistically enhanced by using them in conjunction with wetting agents. |
| 5710332 |
Carbohydrate-derived surfactants and their precursors |
January 20, 1998 |
| A method for the manufacture of N,N dialkylglycamine compounds of general formula R.sub.2 NR.sub.1 R.sub.3 (I) by reacting a secondary amine of general formula R.sub.2 NHR.sub.3 (II) in which R.sub.2 is a straight or branched chain alkyl or hydroxyalkyl group having from 1 to 4 carbon at |
| 5659035 |
Substituted phosphonic acids |
August 19, 1997 |
| A method for the production of azacycloalkane-2,2-diphosphonic acids of general formula; ##STR1## where n is a whole number of from 2 to 16, Y is H, an alkyl or alkenyl, a substituted alkyl, or an aryl, such that the group "Y" remains unchanged during the reaction,by reaction of |
| 5656074 |
Pigment which is substantially free of water-soluble salts and confers corrosion resistance |
August 12, 1997 |
| Anticorrosive compositions for use in paints comprise (i) zinc oxide with (ii) the reaction product of an acidic trivalent metal compound and a silicate or (iii) an aluminium/silicate material eg a clay. |
| 5618385 |
Method of peroxide bleaching of pulp using a peroxide decomposing inactivator |
April 8, 1997 |
| Chlorine dioxide is used to stabilize hydrogen peroxide in bleach liquor at alkaline pH. This is thought to be aided by the destruction of enzymes (especially catalase) produced by bacteria. The method is useful for the reprocessing of pulps, especially when a de-inking stage is involved |
| 5606105 |
Water treatment agent |
February 25, 1997 |
| Unsaturated compounds which can be dissolved in aqueous based solvents, such as ethylenic or acetylenic carboxylate or alcohols with less than 10 carbon atoms, especially maleic and/or acrylic acid or propargyl alcohol, are reacted with alkali metal phosphite in aqueous solution at neutr |
| 5523478 |
Carbohydrate-derived surfactants and their precursors |
June 4, 1996 |
| A method for the manufacture of N,N dialkylglycamine compounds of general formula R.sub.2 NR.sub.1 R.sub.3 (I) by reacting a secondary amine of general formula R.sub.2 NHR.sub.3 (II) in which R.sub.2 is a straight or branched chain alkyl or hydroxyalkyl group having from 1 to 4 carbon at |
| 5498791 |
Nitrosamine and nitrite inhibition |
March 12, 1996 |
| A synergistic mixture of a carbonate and/or bicarbonate with a phosphonate, especially an organoamino methylene phosphonate or an N-oxide thereof, inhibits or reduces nitrosamine contamination during preparation, storage and/or heating of products which are susceptible to contamination w |
| 5495064 |
Immobilization of metal contaminants from a liquid to a solid medium |
February 27, 1996 |
| A method for the immobilization of heavy metal contaminant from a liquid medium containing sulfuric acid and one or more acids of phosphorus, for example in the treatment of acid raffinates generated during the purification of phosphoric acid. The method includes the steps of (i) neu |
| 5476519 |
Dye suspensions |
December 19, 1995 |
| Water insoluble or sparingly soluble dyestuffs such as disperse dyes as concentrates for making up dyebaths or for use as printing pastes, and optical brightening agents for laundry detergents are formulated as stable suspensions in aqueous structured surfactants. |
| 5442113 |
Nitrosamine and nitrite inhibition |
August 15, 1995 |
| A synergistic mixture of a carbonate and/or bicarbonate with a phosphonate, especially an organoamino methylene phosphonate or an N-oxide thereof, inhibits or reduces nitrosamine contamination during preparation, storage and/or heating of products which are susceptible to contamination w |
| 5439999 |
Bulk polymerisation process and product |
August 8, 1995 |
| Copolymers of aryl phosphonic acids can be made in a bulk polymerization process with unsaturated monomeric hydrocarbons. Preferred are alpha-phenyl vinyl phosphonic acid and styrene. Bulk polymerization process avoids suspending agents, emulsifying agents or water. Absence of haloge |
| 5386038 |
Water treatment agent |
January 31, 1995 |
| Unsaturated compounds which can be dissolved in aqueous based solvents, such as ethylenic or acetylenic carboxylate or alcohols with less than 10 carbon atoms, especially maleic and/or acrylic acid or propargyl alcohol, are reacted with alkali metal phosphite in aqueous solution at neutr |
| 5385896 |
Biocidal compositions and treatments |
January 31, 1995 |
| Phosphonium salts such as THP and aldehydes such as formaldehyde exhibit synergistic biocidal activity. |
| 5378243 |
Flame retardant and water-resistant treatment of fabrics |
January 3, 1995 |
| In a method for the flame-retardant treatment of fabrics by impregnation with a condensate of a tetrakis (hydroxyorgano) phosphonium salt and, e.g., urea, the addition of one or more protonated and neutralized amines to the impregnation solution increases the efficiency of fixation of th |
| 5376142 |
Method to treat animal skins prior to tanning |
December 27, 1994 |
| A method for treating animal skins, prior to tanning including contacting animal skins with an aqueous degreasing solution containing brine and an effective amount of a shrink inhibitor, the shrink inhibitor being(a) at least one hydroxyalkyl phosphine compound of the formulawhereinR is a C. |
| 5351596 |
Processing of powder |
October 4, 1994 |
| A method and apparatus are provided for introducing a flammable powder such as red phosphorus into a hot melt such as an extrudable polymer which is in motion at the point of introduction of the flammable powder. |
| 5284555 |
Process for preparing organophosphines |
February 8, 1994 |
| Olefins can be induced to react with phosphines at ambient temperature and pressure to produce organophosphines by free-radical addition. Suitable olefins include C.sub.1 to C.sub.4 alpha-olefins, cyclic olefins, polycycloalkenyl species, allyl alcohol and esters of vinyl phosphonic |
| 5270370 |
Red phosphorus |
December 14, 1993 |
| Evolution of phosphine from red phosphorus is reduced by means of acyclic, aliphatic compounds having at least one carbon-to-carbon double bond, in the alpha-position relative to an electron-withdrawing group. A preferred example of such a compound is trans-cinnamaldehyde. |
| 5223644 |
Nitrosamine inhibition |
June 29, 1993 |
| Bicarbonates and/or carbonates are used in greater than catalytic amounts to inhibit the formation of nitrosamines during the preparation, storage and/or use of amine oxides. |
| 5198353 |
Method for preparing stabilized enzyme dispersion |
March 30, 1993 |
| Disclosed is a method for preparing a stabilized enzyme dispersion wherein the dispersion is prepared by precipitating a water-soluble polymer from a single phase, aqueous solution to form an aqueous dispersion, and before, simultaneously with or after precipitating the polymer, contacti |
| 5168655 |
Hydroponic crop production |
December 8, 1992 |
| Hydroponic substrates are disinfected in situ, prior to a crop production cycle, with a dilute aqueous solution containing hydrogen peroxide and at least one peracid having a ##STR1## group. |
| 5139561 |
Method for protecting growing plants against fungal or microbial path pathogens |
August 18, 1992 |
| A method for protecting growing plants against fungal or microbial plant pathogens which comprises applying thereto, or to the medium on which they are growing or to be grown, a composition comprising a water soluble tetrakis (hydroxymethyl) phosphonium salt. |
| 5139531 |
Fabric treatment processes |
August 18, 1992 |
| Flame retardant cellulosic fabrics having reduced shrinkage are obtained by treatment involving reaction of fabric with a non self-condensing methylolamide under aqueous acid conditions, followed by treatment of fabric with tetrakis hydroxylmethyl phosphonium compound or condensate and |
| 5135541 |
Flame retardant treatment of cellulose fabric with crease recovery: tetra-kis-hydroxy-methyl pho |
August 4, 1992 |
| Flame retardant cellulosic fabrics having reduced shrinkage are obtained by treatment of fabric with a tetrakis hydroxymethyl phosphonium compound or condensate and then curing with ammonia, followed by treatment involving reaction of the fabric with a non self-condensing methylolamide u |
| 5126387 |
Flame retardant compositions and method of use |
June 30, 1992 |
| A flame retardant composition comprises at least one cyclic phosphonate ester and at least one phosphono amide. The ester and the amide are present in a ratio by weight of 0.1 to 2:1. A co-curing agent (e.g. urea, ethylene urea or an amino-triazine) may be included. The composition may |
| 5094890 |
Wood treatment composition and process |
March 10, 1992 |
| Compositions for flame proofing wood e.g. in the form of aqueous solutions containing tetrakis (hydroxymethyl) phosphonium salt, methylolmelamine with at least 3.5 optionally alkylated hydroxymethyl groups per melamine nucleus, a polyfunctional nitrogen compound with at least 2 N-H group |
| 5085846 |
Process for producing phosphorous acid |
February 4, 1992 |
| Phosphorous acid is made by a continuous recycling process from a mixture of phosphorous and hydrochloric acids, comprising:(i) continuously recycling the mixture in a loop apparatus;(ii) adding water to and passing phosphorus trichloride into said recycling mixture so as to generate a condi |
| 5075088 |
Production of red phosphorus |
December 24, 1991 |
| Amorphous red phosphorus useful for matches, or as flame retardant is made by forming a slurry of 10-45% red phosphorus in molten white phosphorus, reducing the content of yellow phosphorus to less than 20% of the red phosphorus by separation at less than 280.degree. C., and then heating |
| 5073234 |
Composition and method of deinking of recycled cellulosic material |
December 17, 1991 |
| A method for deinking recycled waste cellulosic material such as newsprint includes pulping the waste in the presence of an aqueous dispersion of a resin precursor, curable in said dispersion and curing the resin precursor during the pulping operation. |
| 5061315 |
Products for treating surfaces |
October 29, 1991 |
| Silica products obtained from trivalent metal e.g. Al compounds and silica can be used as corrosion inhibitors or adhesion promoters for organic coatings on surfaces by way of no-rinse or phosphating treatment or as pigments. |
| 5061314 |
Products for treating surfaces |
October 29, 1991 |
| Silica products obtained from trivalent metal e.g. Al compounds and silica can be used as corrosion inhibitors or adhesion promoters for organic coatings on surfaces by way of no-rinse or phosphating treatment or as pigments. |
| 5053119 |
Ore flotation |
October 1, 1991 |
| Ores of metal oxides and oxide-like compounds such as chromite and pyrochlore are beneficiated by froth flotation in the presence of substituted amino phosphonic acids or salts thereof. |
| 5039451 |
Manufacturing concentrated surfactant compositions |
August 13, 1991 |
| Mixtures of surfactants capable of forming "G" phase are prepared by forming one component of the mixture from a precursor in the presence of the other component or components and sufficient water form the product in the "G" phase. |
| 5030358 |
Deactivation of phosphonium biocides |
July 9, 1991 |
| Solutions of organophosphorus biocides which also contain dissolved oxygen are deactivated by adding a catalytic amount of activated carbon. |
| 5008015 |
Purification of phosphorus compounds |
April 16, 1991 |
| The content of hydrogen chloride and phosphorous acid of crude amino organic phosphonic acids, especially diethylenetriaminepentakis (methylene phosphonic acid) is reduced by solvent extraction into an alcoholic phase leaving purified phosphonic acid behind. |
| 4960433 |
Deposition processes |
October 2, 1990 |
| 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 uncured resin upon the surfac |
| 4919754 |
Composition wherein recycled cellulosic pulp is deinked |
April 24, 1990 |
| A composition containing an aqueous, recycled cellulosic fibre pulp, print pigments contaminating the pulp, from 0.1% to 10% based on the weight of the pulp solids of a curable precursor of a solid polymer resin which is not substantive to the cellulosic fibres of the pulp, and a catalys |
| 4919725 |
Novel dispersible active sizing composition |
April 24, 1990 |
| A water dispersible active sizing composition comprises an active size such as alkyl succinic acid and an effective proportion (e.g. 10-30% by weight) of a dispersant therefor, said dispersant comprising a polyalkoxylate of a rosin or fortified rosin, and/or a water dispersible organic d |
| 4909805 |
Textile treatment |
March 20, 1990 |
| A process for flame retarding blends of cellulosic and other fibres e.g. polyester fibres involves impregnation thereof with tetra kis (hydroxyorgano) phosphonium compounds or condensates thereof followed by curing with ammonia, the operation being performed in at least two steps, an |
| 4906396 |
Protected enzyme systems |
March 6, 1990 |
| A protected enzyme system suitable for storage, prior to use, in a medium such as a liquid detergent which causes degradation of the unprotected enzyme, which system comprises at least one enzyme dispersed in a hydrophobic substance which does not dissolve on storage and which is liq |
| 4881975 |
Products for treating surfaces |
November 21, 1989 |
| Silica products obtained from trivalent metal e.g. Al compounds and silica can be used as corrosion inhibitors or adhesion promoters for organic coatings on surfaces by way of no-rinse or phosphating treatment or as pigments. |
| 4871467 |
Non-sedimenting liquid detergent compositions resistant to shear |
October 3, 1989 |
| 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 liguid phase which is separable into a |
| 4793943 |
Liquid detergent compositions |
December 27, 1988 |
| 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 |
| 4781855 |
Sodium phosphate composition and process |
November 1, 1988 |
| A particulate hydrated trisodium phosphate composition useful in heavy duty cleansers has a core and shell structure, the shell being of trisodium phosphate hexahydrate and the core comprising trisodium orthophosphate dodecahydrate and sodium hydroxide. The composition may be made by |
| 4775407 |
Method of treating surfaces to control bryophytes or lichens using a water soluble tetrakis (hyd |
October 4, 1988 |
| A method of treating surfaces colonized or colonizable by bryophites or lichens which comprises applying thereto sufficient of a water soluble tetrakis (hydroxymethyl) phosphonium salt to kill, or inhibit the growth thereon of said bryophytes or lichens. |
