Patents by Inventor Steven Paul Rannard
Steven Paul Rannard has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100144958Abstract: The present invention relates to a branched polymer obtainable an addition polymerisation process, preferably a free-radical polymerisation process, which is the reaction product of: (a) an initiator, optionally but preferably a free-radical initiator, (b) optionally but preferably a compatible chain transfer agent (E and E?), (c) at least one ethylenically monounsaturated monomer (G and/or J), (d) at least one ethylenically polyunsaturated monomer (L), wherein at least one of (a)-(d) has a molecular weight of at least 1000 Daltons, and the mole ratio of (d) to (c) is greater than 0.0005 to 1.Type: ApplicationFiled: December 10, 2007Publication date: June 10, 2010Applicants: UNILEVER PLC, UNILEVER N.V.Inventors: Paul Hugh Findlay, Steven Paul Rannard, Brodyck James Lachlan Royles, Jonathan Victor Mark Weaver
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Publication number: 20100130641Abstract: The present invention relates to an amphiphilic branched copolymer obtainable by an addition polymerisation process, preferably a free-radical polymerisation process, which is the reaction product of: (a) an initiator, optionally but preferably a free-radical initiator, (b) optionally but preferably a compatible chain transfer agent (E and E?), (c) at least one ethylenically monounsaturated monomer (G and/or J), (d) at least one ethylenically polyunsaturated monomer (L), wherein at least one of E, E?, G, J and L is a hydrophilic residue; and at least one of E, E?, G, J and L is a hydrophobic residue, and the mole ratio of (d) to (c) is greater than 0.0005 to 1. The invention further relates to a branched copolymer particle comprising such an amphiphilic branched copolymer, methods for their preparation, compositions containing such copolymers and particles and their use as, for instance, encapsulating agents, nanoreactors, Pickering emulsifiers, controlled release agents and/or triggered release agents.Type: ApplicationFiled: December 10, 2007Publication date: May 27, 2010Applicants: UNILEVER PLC, UNILEVER N.V.Inventors: Paul Hugh Findlay, Steven Paul Rannard, Brodyck James Lachlan Royles, Jonathan Victor Mark Weaver
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Patent number: 7691873Abstract: A process for the production of a composition comprising a water-insoluble opioid which comprises the steps of: a) providing a mixture comprising: i) a water-insoluble opioid, ii) a water soluble carrier, and iii) a solvent for each of the opioid and the carrier, and b) spray-drying the mixture to remove the or each solvent and obtain a substantially solvent-free nano-dispersion of the opioid in the carrier.Type: GrantFiled: July 13, 2007Date of Patent: April 6, 2010Assignee: Conopco, Inc.Inventors: David John Duncalf, Steven Paul Rannard, James Long, Dong Wang, Andrew James Elphick, John Staniforth, Daniele Chauvin, Alison Jayne Foster
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Publication number: 20100015233Abstract: The present invention relates to nanodisperse antiparasitics and provides a composition comprising at least one water insoluble anti-parasitic drug and a water-soluble carrier material, wherein the water-insoluble anti-parasitic drug (preferably an Artemisinin-type drug or a quinine type drug) is dispersed through the carrier material in nano-disperse form having a peak diameter of the nano-disperse form below 1000 nm.Type: ApplicationFiled: June 29, 2007Publication date: January 21, 2010Inventors: David John Duncalf, Asha Hassan Essa, Alison Jayne Foster, James Long, Steven Paul Rannard, Dong Wang
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Publication number: 20100015229Abstract: A process for the production of a composition comprising a water-insoluble statin which comprises the steps of: a) providing a mixture comprising: i) a water-insoluble statin ii) a water soluble carrier, iii) a solvent for each of the statin and the carrier, and b) spray-drying the mixture to remove the or each solvent and obtain a substantially solvent-free nano-dispersion of the statin in the carrier.Type: ApplicationFiled: June 29, 2007Publication date: January 21, 2010Inventors: David John Duncalf, Alison Jayne Foster, James Long, Steven Paul Rannard, Dong Wang
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Publication number: 20090325995Abstract: A process for the production of a composition comprising a water-insoluble opioid which comprises the steps of: a) providing a mixture comprising: i) a water-insoluble opioid, ii) a water soluble carrier, and iii) a solvent for each of the opioid and the carrier, and b) spray-drying the mixture to remove the or each solvent and obtain a substantially solvent-free nano-dispersion of the opioid in the carrierType: ApplicationFiled: July 13, 2007Publication date: December 31, 2009Inventors: David John Duncalf, Steven Paul Rannard, James Long, Dong Wang, Andrew James Elphick, John Staniforth, Daniele Chauvin, Alison Jayne Foster
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Publication number: 20090304806Abstract: A process for the production of a composition comprising a water-insoluble sartan which comprises the steps of: a) providing a mixture comprising: i) a water-insoluble sartan, ii) a water soluble carrier, iii) a solvent for each of the sartan and the carrier, and b) spray-drying the mixture to remove the or each solvent and obtain a substantially solvent-free nano-dispersion of the sartan in the carrier.Type: ApplicationFiled: June 29, 2007Publication date: December 10, 2009Inventors: David John Duncalf, Andrew James Elphick, Alison Jayne Foster, James Long, Steven Paul Rannard, Dong Wang
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Publication number: 20090239749Abstract: The invention provides a solvent-free biocidal composition of improved efficacy comprising at least one water insoluble biocide (preferably a herbicide) and a water-soluble carrier material, wherein the water-insoluble biocide is dispersed through the carrier material in nano-disperse form having a peak diameter of the nano-disperse form below 1000 nm. The invention also provides a process which comprises spray drying a solution of the biocide and a solution of a water-soluble carrier to obtain a solvent free dispersion of the biocide in the carrier, which, when dissolved in water, produces a nano-disperse biocide. The invention also provides an aqueous dispersion of a water insoluble biocide and a water-soluble carrier obtained by the dispersion of the composition of the solvent free composition in water.Type: ApplicationFiled: June 29, 2007Publication date: September 24, 2009Inventors: David John Duncalf, Alison Jayne Foster, James Long, Steven Paul Rannard, Dong Wang
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Publication number: 20090175953Abstract: The invention provides process for making contra-soluble nano-dispersions of at most sparingly-soluble materials in a soluble carrier material comprising the steps of: (i) providing a single phase mixture of: a) a solvent or a mixture of miscible solvents, b) at least one carrier material soluble in solvent (a), said carrier material being also contra-soluble to payload material (c) and solid at ambient temperature, c) at least one a payload material which is soluble in solvent (a), and, (ii) drying the mixture to remove solvent (a) and thereby obtain the carrier material (b) in solid form with payload (c) dispersed therein as nanoparticles.Type: ApplicationFiled: June 29, 2007Publication date: July 9, 2009Inventors: Doris Angus, David John Duncalf, Andrew James Elphick, Alison Jayne Foster, James Long, Steven Paul Rannard, Dong Wang
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Patent number: 7544720Abstract: Water dispersible or water soluble porous bodies comprising a three dimensional open-cell lattice containing 10 to 95% by weight of a polymeric material which is soluble in water, and, less than 5% by weight of a surfactant, said porous bodies having an intrusion volume as measured by mercury porosimetry (as hereinafter described) of at least about 3 ml/g, and, with the proviso that said porous bodies are not spherical beads having an average bead diameter of 0.2 to 5 mm.Type: GrantFiled: January 28, 2005Date of Patent: June 9, 2009Assignee: Conopco, Inc.Inventors: Andrew Ian Cooper, David John Duncalf, Alison Jayne Foster, Steven Paul Rannard, Haifei Zhang
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Publication number: 20080262100Abstract: The invention provides a method for the preparation of a carrier liquid which comprises the steps of: (I) preparing an emulsion comprising: a) an aqueous phase, b) A second liquid phase which is volatile and which is immiscible with aqueous phase (a), c) A carrier material which is soluble in the continuous phase of the emulsion and which is liquid at ambient temperature, and d) A dopant which is soluble in the disperse phase of the emulsion, (II) cooling the emulsion produced in step (I) to a temperature at which at least both the continuous phase and the carrier material become solid, (III) removing water and the volatile second phase from the cooled emulsion in vapor form, and, (IV) returning the product of step (III) to ambient temperature to obtain a liquid product with the dopant dispersed therein.Type: ApplicationFiled: December 20, 2005Publication date: October 23, 2008Inventors: Andrew Ian Cooper, David John Duncalf, Alison Jayne Foster, Steven Paul Rannard, Jeremy Nicholas Winter, Haifei Zhang
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Publication number: 20080226721Abstract: Porous bodies which are soluble or dispersible in non-aqueous media comprising a three dimensional open-cell lattice containing (a) 10 to 70% by weight of a polymeric material which is soluble in water immiscible non-aqueous media and (b) 30 to 90% by weight of a surfactant, said porous bodies having an intrusion volume as measured by mercury porosimetry of at least 3 ml/g.Type: ApplicationFiled: December 23, 2004Publication date: September 18, 2008Inventors: Andrew Ian Cooper, Alison Jayne Foster, Steven Paul Rannard, Haifei Zhang
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Publication number: 20080221231Abstract: The invention provides a method for preparing water dispersible or water soluble porous bodies and the bodies themselves The bodies have an intrusion volume as measured by mercury porosimetry of at least about 3 ml/g and comprise a three dimensional open-cell lattice containing less than 10% by weight of a water soluble polymeric material and 5 to 90% by weight of a surfactant, with the proviso that said porous bodies are not spherical beads having an average bead diameter of 0.2 to 5 mm.Type: ApplicationFiled: January 28, 2005Publication date: September 11, 2008Inventors: Andrew Ian Cooper, David John Duncalf, Alison Jayne Foster, Steven Paul Rannard, Haifei Zhang
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Publication number: 20080206349Abstract: The invention provides a method comprising the steps of: (i) providing an emulsion of: a) an aqueous solvent, such as water, b) a carrier material dispersible or soluble in (a), said carrier material being solid at ambient temperature, and preferably being a polymer and inorganic salt or a surfactant, c) a volatile second liquid phase (for example, chloroform) which is not miscible with (a), and d) a material which is dispersible or soluble in (c) but not in (a), and, (ii) Drying the emulsion at above ambient temperature (preferably by spray drying) to simultaneously remove (a) and (c) and thereby obtain the material (b) in solid form with (d) dispersed therein.Type: ApplicationFiled: December 20, 2005Publication date: August 28, 2008Inventors: Stephen George Barnwell, Adrew Ian Cooper, David John Duncalf, Alison Jayne Foster, Steven Paul Rannard
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Patent number: 7083047Abstract: A water soluble package comprises a polymeric film, the polymeric film comprising a polymeric backbone derived from a polymer which is water soluble, as defined herein, and one or more derivatising groups attached to the backbone, the derivatising group(s) being derived from a material having a ClogP of from 0.5 to 6 and/or being derived from a parent material comprising a C4 to C22 hydrocarbyl chain.Type: GrantFiled: October 3, 2003Date of Patent: August 1, 2006Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.Inventors: Gavin Bone, Robert Walter Fuss, Craig Warren Jones, Steven Paul Rannard, Michael Stephen White
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Publication number: 20040141928Abstract: An oral care composition comprising a compound of Formula (1) 1Type: ApplicationFiled: November 21, 2003Publication date: July 22, 2004Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Melanie Gayle Brading, Victoria Cromwell, Steven Paul Rannard, David William Thornthwaite
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Publication number: 20040065578Abstract: A water soluble package comprises a polymeric film, the polymeric film comprising a polymeric backbone derived from a polymer which is water soluble, as defined herein, and one or more derivatising groups attached to the backbone, the derivatising group(s) being derived from a material having a ClogP of from 0.5 to 6 and/or being derived from a parent material comprising a C4 to C22 hydrocarbyl chain.Type: ApplicationFiled: October 3, 2003Publication date: April 8, 2004Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Gavin Bone, Robert Walter Fuss, Craig Warren Jones, Steven Paul Rannard, Michael Stephen White
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Publication number: 20030226210Abstract: A method of washing and rinsing a textile fabric, the method comprising a washing step wherein the washing liquor comprises an anionic surfactant and a nonionic surfactant and a rinse additive encapsulated in a terpolymer.Type: ApplicationFiled: August 8, 2002Publication date: December 11, 2003Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Fakhruddin Esmail Pacha, Steven Paul Rannard
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Patent number: 6037444Abstract: A process for the preparation of a compound or polymer having at least one functional group selected from hydroxyl, thiol, amino and carboxylic acid groups is characterized in that a compound or polymer (A) containing a group of formula (I), ##STR1## where Q represents O or S and X represents --O--, --S--, --NH-- or a direct bond, the group being linked to the remainder of the compound or polymer through a carbon atom, is reacted with a compound (B) containing at least two functional groups selected from hydroxyl, thiol, amino and carboxylic acid groups, one of which functional groups (II) reacts with the group of formula (I) and one of which functional groups (III) is substantially unreactive with the group of formula (I) under the conditions of reaction, so that the compound (B) becomes bonded to (A) through the reaction of groups (I) and (II) forming a compound or polymer containing unreacted functional groups (III).Type: GrantFiled: June 18, 1998Date of Patent: March 14, 2000Assignee: Courtaulds Coatings (Holdings) LimitedInventors: Steven Paul Rannard, Nicola Jane Davis