Patents by Inventor David William Thornthwaite

David William Thornthwaite 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).

  • Publication number: 20210122698
    Abstract: A process for preparing dialkyl terephalate comprising the following steps:—i) providing furan-2,5-dicarboxylate; ii) esterifying the furan-2,5-dicarboxylate with alcohol to form furan-2,5-carboxylic acid dialkyl ester; iii) reacting the furan-2,5-carboxylic acid dialkyl ester with ethylene under Diels Alder conditions, elevated temperature and pressure and in the presence of a catalyst such that dialkyl terephthalate is produced; wherein the Diels-Alder reaction is free from solvent; wherein the catalyst comprises a clay comprising metal ions and having Lewis acidity.
    Type: Application
    Filed: March 28, 2019
    Publication date: April 29, 2021
    Inventors: Simon William BREEDEN, James Hanley CLARK, Thomas James FARMER, Duncan James MACQUARRIE, Con Robert MCELROY, Joseph Kolawole OGUNJOBI, David William THORNTHWAITE
  • Patent number: 10918107
    Abstract: A method of measuring a wet friction of a bundle of hair, using a system which includes a friction probe having a contact surface and fitted with a weight in the range of from 10 g to 500 g, inclusive, a means for securing the bundle of hair, and a water bath, the friction probe being connected to a texture analyser, the method including the step of i) providing a bundle of hair fibres. The method also includes the steps of ii) aligning the bundle of hair fibres; iii) securing the bundle of hair fibres; iv) immersing the bundle of hair fibres under water in the water bath; v) contacting the bundle of hair fibres with the contact surface of the friction probe, which is fitted with the weight; vi) moving the probe along the hair fibres; and vii) recording the friction generated under step vi).
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: February 16, 2021
    Assignee: Conopco, Inc.
    Inventors: Christopher Fidge, Stephen Golding, Paul Damien Price, David William Thornthwaite
  • Publication number: 20200383891
    Abstract: The present invention relates to a deodorant composition comprising an oxazolidine- or, a thiazolidine-carboxylic acid compound, a cosmetic carrier and optionally a fragrance. The invention also relates to a manufacturing process for the deodorant composition, a method of treating malodour and a method of screening deodorant actives as well as inhibiting a Staphylococcus hominis C-S ?-lyase.
    Type: Application
    Filed: December 12, 2018
    Publication date: December 10, 2020
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Diana Sheila Cox, Alexander Gordon JAMES, Mrinalini Jayant PURANIK, David William THORNTHWAITE, Jason Richard WILLIAMS
  • Patent number: 10377707
    Abstract: A process for the synthesis of lactams suitable for use in antimicrobial, anti-biofilm bacteriostatic compositions.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: August 13, 2019
    Assignee: CONOPCO INC.
    Inventors: Andrew Martyn Norbury, David William Thornthwaite
  • Publication number: 20180244616
    Abstract: Compositions comprising a lactam. The compositions are suitable for use as anti-microbial, anti-biofilm and bacteriostatic compositions.
    Type: Application
    Filed: August 3, 2016
    Publication date: August 30, 2018
    Applicant: Conopco, Inc., a/b/a UNILEVER
    Inventors: Joanne Clare O'KEEFFE, Neil James PARRY, Paul Damien PRICE, Peter David STEINBERG, David William THORNTHWAITE
  • Publication number: 20180237388
    Abstract: A process for the synthesis of lactams suitable for use in antimicrobial, anti-biofilm bacteriostatic compositions.
    Type: Application
    Filed: August 1, 2016
    Publication date: August 23, 2018
    Applicant: Conopco, Inc., a/b/a UNILEVER
    Inventors: Andrew Martyn NORBURY, David William THORNTHWAITE
  • Publication number: 20180228151
    Abstract: Encapsulated lactams suitable for use in compositions and compositions comprising encapsulated lactams. The compositions may be useful as antimicrobial, anti-biofilm and bacteriostatic compositions. Methods of encapsulating lactams.
    Type: Application
    Filed: July 25, 2016
    Publication date: August 16, 2018
    Applicant: Conopco, Inc., a/b/a UNILEVER
    Inventors: Christopher FIDGE, Stephen GOLDING, Paul Damien PRICE, David William THORNTHWAITE
  • Publication number: 20110182840
    Abstract: A deodorant composition comprising an aminoacid compound of formula I or II and a carrier material. R1R2N—X—O—CH?CH—CH(NH2)CO2H??I R1R2N—X—O—CH2CH2—CH(NH2)CO2H??II where X is an optionally substituted alkylene group comprising two carbons and R1 and R2 are independently H or CH3.
    Type: Application
    Filed: March 22, 2011
    Publication date: July 28, 2011
    Applicant: CONOPCO, INC., D/B/A UNILEVER
    Inventors: Alexander Gordon James, David Taylor, David William Thornthwaite, Joanne Elizabeth Stockton
  • Publication number: 20090156680
    Abstract: A deodorant composition comprising an aminoacid compound of formula I or II and a carrier material. I R1R2N—X—O—CH?CH—CH(NH2)CO2H II R1R2N—X—O—CH2CH2—CH(NH2)CO2H where X is an optionally substituted alkylene group comprising two carbons and R1 and R2 are independently H or CH3.
    Type: Application
    Filed: April 26, 2006
    Publication date: June 18, 2009
    Inventors: Alexander Gordon James, David Taylor, David William Thornthwaite, Joanne Elizabeth Stockton
  • Publication number: 20090029899
    Abstract: A fabric softening composition having a pH of from 2 to 3 and comprising a) from 1.5 to 50% by weight of a cationic fabric softening compound having two or more alkyl or alkenyl chains each having an average chain length equal to, or greater than C8 each connected to a nitrogen atom via at least one ester linkage, the iodine value of the parent fatty acyl compound or acid from which the alkyl or alkenyl chains are derived being from 0 to 20, preferably 0 to 5, more preferably 0 to 2, most preferably 0, the softening compound being free from acid amide links, b) at least 0.15% by weight of perfume, and c) a plasticizer which is liquid at ambient temperature, in an effective amount such that the fabric conditioning composition has a major phase transition peak of not more than 52° C. measured by differential scanning calorimetry (DSC).
    Type: Application
    Filed: July 24, 2008
    Publication date: January 29, 2009
    Inventors: David Stephen Grainger, Christopher John Roberts, David William Thornthwaite, Shaun Charles Walsh
  • Patent number: 7049278
    Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with atmospheric oxygen and a peroxyl species. A method of bleaching a substrate is provided that comprises applying to the substrate, in an aqueous medium, a specified organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by atmospheric oxygen and a peroxyl species. Also provided is a bleaching composition comprising, in an aqueous medium, atmospheric oxygen and an organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by the atmospheric oxygen, wherein the aqueous medium is provided with a peroxygen bleach or a peroxy-based or peroxy-generating bleach system.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: May 23, 2006
    Assignee: Unilever Home and Personal Care USA Division of Conopco, Inc.
    Inventors: Ronald Hage, Ton Swarthoff, David Tetard, David William Thornthwaite
  • Publication number: 20040141928
    Abstract: An oral care composition comprising a compound of Formula (1) 1
    Type: Application
    Filed: November 21, 2003
    Publication date: July 22, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Melanie Gayle Brading, Victoria Cromwell, Steven Paul Rannard, David William Thornthwaite
  • Patent number: 6709647
    Abstract: The present invention concerns deodorant products based on a synergistically active antimicrobial mixture of picolinic acid and a peroxyl species or equivalent source thereof. Also described is the cosmetic use of such products to treat malodour on the human body.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: March 23, 2004
    Assignee: Unilever Home & Personal Care USA, a division of Conopco, Inc.
    Inventors: Manmohan Bhakoo, Sally Gillian Grimshaw, Karen Anne Steele, David Taylor, Katherine Mary Thompson, David William Thornthwaite
  • Publication number: 20040038844
    Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with atmospheric oxygen and a peroxyl species. A method of bleaching a substrate is provided that comprises applying to the substrate, in an aqueous medium, a specified organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by atmospheric oxygen and a peroxyl species. Also provided is a bleaching composition comprising, in an aqueous medium, atmospheric oxygen and an organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by the atmospheric oxygen, wherein the aqueous medium is provided with a peroxygen bleach or a peroxy-based or peroxy-generating bleach system.
    Type: Application
    Filed: August 22, 2003
    Publication date: February 26, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Ronald Hage, Ton Swarthoff, David Tetard, David William Thornthwaite
  • Patent number: 6689738
    Abstract: There is provided an enzymatic oxidation composition and process wherein an oxidisable substance is reacted with (a) a compound having the formula: and (b) molecular oxygen, in the absence of peroxidase. The process is useful in detergent compositions for stain bleaching and/or anti dye-transfer.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: February 10, 2004
    Assignee: Unilever Home and Personal Care USA Division of Conopco, Inc.
    Inventors: Daniel Convents, Monique Doornink, Richard George Smith, David William Thornthwaite
  • Publication number: 20030215403
    Abstract: An oral composition with an improved teeth whitening effect, comprising a first formulation comprising an effective amount of a peroxy amido phthalamide having the structural formula: 1
    Type: Application
    Filed: July 25, 2002
    Publication date: November 20, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Andrew Joiner, David William Thornthwaite, Philip Christopher Waterfield
  • Patent number: 6638901
    Abstract: The invention relates to catalytically bleaching substrates, especially laundry fabrics, with atmospheric oxygen and a peroxyl species. A method of bleaching a substrate is provided that comprises applying to the substrate, in an aqueous medium, a specified organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by atmospheric oxygen and a peroxyl species. Also provided is a bleaching composition comprising, in an aqueous medium, atmospheric oxygen and an organic substance which forms a complex with a transition metal, the complex catalysing bleaching of the substrate by the atmospheric oxygen, wherein the aqueous medium is provided with a peroxygen bleach or a peroxy-based or peroxy-generating bleach system.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: October 28, 2003
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Ronald Hage, Ton Swarthoff, David Tetard, David William Thornthwaite
  • Publication number: 20030059396
    Abstract: The present invention concerns deodorant products based on a synergistically active antimicrobial mixture of picolinic acid and a peroxyl species or equivalent source thereof. Also described is the cosmetic use of such products to treat malodour on the human body.
    Type: Application
    Filed: January 16, 2002
    Publication date: March 27, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Manmohan Bhakoo, Sally Gillian Grimshaw, Karen Anne Steele, David Taylor, Katherine Mary Thompson, David William Thornthwaite
  • Patent number: 6471947
    Abstract: An oral composition comprising picolinic acid and a peroxyl species or equivalent source thereof, characterised in that the molar ratio of picolinic acid to peroxyl species or equivalent source thereof is from 1:30 to 100:1.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: October 29, 2002
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Manmohan Bhakoo, Andrew Joiner, Karen Anne Steele, David Taylor, Katherine Mary Thompson, David William Thornthwaite
  • Patent number: 6472360
    Abstract: The invention provides liquid hard surface cleaning compositions comprising multiple partial compositions held separately from each other in a multiple compartment container which is provided with a non-spray dispensing system. One partial composition comprises a peroxygen bleach compound, preferaqbly hydrogen peroxide. The total composition comprises a multi-component thickening system of which the components are divided over the partial compositions in such a way that the total composition thickens on dispensing. Each partial composition has a pH at which the components in it are stable, while after mixting the total composition has a pH suitable for cleaning. The compositions preferably contain a quaternary imine salt bleach activator and a detergent surfactant. The number of partial compositions and of the compartments in the container is preferably 2.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: October 29, 2002
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: David Victor Beggs, Alexander Martin, Nicola Rogers, David William Thornthwaite, Joan Lesley Williams, Fraser William Whyte