Patents by Inventor Thomas Charles Castle

Thomas Charles Castle 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).

  • Patent number: 9732177
    Abstract: An amphiphilic polymeric material which has a straight or branched chain polymer backbone and a multiplicity of side chains attached to the backbone, wherein the backbone is a copolymer of at least one ethylenically-unsaturated aliphatic hydrocarbon monomer and maleic anhydride, or is a terpolymer of maleic anhydride, ethylene, and a further ethylenically unsaturated monomer. A method of synthesizing said polymeric material is also provided, together with chewing gum bases, compositions and emulsions comprising amphiphilic polymeric materials.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 15, 2017
    Assignee: REVOLYMER (U.K.) LIMITED
    Inventors: Thomas Charles Castle, Roger B. Pettman, Terence Cosgrove
  • Publication number: 20160250134
    Abstract: Uses of polymers including monomeric units based on salts of itaconic acid as film formers are disclosed. The polymers confer good film-forming characteristics to the compositions to which they are added, making them suitable for use in cosmetic and personal care product, in particular those that are applied to the skin, hair or nails. The polymers offer a variety of benefits to the products into which they are incorporated, increasing their performance, longevity or adhesion to the human body and improving their feel or appearance during use. Also disclosed are methods of preparing the polymers and the cosmetic and personal care compositions.
    Type: Application
    Filed: February 23, 2016
    Publication date: September 1, 2016
    Applicant: REVOLYMER (U.K.) LIMITED
    Inventors: Thomas Charles CASTLE, Robert Louis FINCH, David Alan PEARS, Brian David YOUNG
  • Publication number: 20160130533
    Abstract: A latex composition including a dispersion of an amphiphilic copolymer in an aqueous medium, wherein the copolymer is: (i) a graft copolymer including a hydrophobic straight or branched chain carbon-carbon backbone having at least one hydrophilic side chain, wherein each chain is independently of formula (I), wherein R1 and R2 are each independently H1-C(O)WR4 or —C(O)Q; provided that at least one of R1 and R2 is the group —C(O)Q; or R1 and R2 together form a cyclic structure together with the carbon atoms to which they are attached.
    Type: Application
    Filed: May 16, 2014
    Publication date: May 12, 2016
    Inventors: Thomas Charles CASTLE, David Alan PEARS, Maurice PRESTON, Pennadam Shanmugam SIVANAND
  • Publication number: 20160130382
    Abstract: A amphiphilic polymeric material that includes a straight or branched chain carbon-carbon backbone and a multiplicity of side chains attached to the backbone, wherein the side chains have formula (I): At least one of R1 and R2 is the group —C(O)Q; wherein Q includes a hydrophilic polymeric group terminated with an amine.
    Type: Application
    Filed: January 20, 2016
    Publication date: May 12, 2016
    Inventors: David Alan Pears, Pennadam Shanmugam Sivannand, Thomas Charles Castle
  • Publication number: 20140141262
    Abstract: A functionalized homopolymer or copolymer of vinyl alcohol of the formula P—(R)n, where: P represents a straight or branched chain polymer backbone that is a homopolymer of vinyl alcohol or a copolymer of vinyl alcohol and at least one other monomer, the homopolymer or copolymer comprising one or more reactive coupling group; R represents an aminosilane-containing and/or an aminosilanol-containing side chain attached to the polymer backbone via the one or more reactive coupling group; and n represents the number of side chains, which are present in an amount from about 1 to about 25 mol % of the polymer backbone; and ink or coating compositions containing the functionalized polymer.
    Type: Application
    Filed: December 16, 2013
    Publication date: May 22, 2014
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Thomas Charles CASTLE, Robert Louis FINCH, David Alan PEARS, Maurice PRESTON, Pennadam Shanmugam SIVANAND, Brian David YOUNG, Derek Ronald ILLSLEY
  • Publication number: 20130095047
    Abstract: A cosmetic composition including: (i) at least one amphiphilic copolymer; and (ii) one or more cosmetically acceptable diluents, excipients or carriers; wherein the amphiphilic copolymer is selected from the group consisting of a graft copolymer including a hydrophobic straight or branched chain carbon-carbon backbone having at least one hydrophilic side chain attached thereto; a graft copolymer comprising a hydrophilic straight or branched chain backbone having at least one hydrophobic side chain attached thereto; a block copolymer including at least one hydrophilic block and at least one hydrophobic block in a straight or branched chain backbone; and a cross-linked/network copolymer.
    Type: Application
    Filed: November 29, 2010
    Publication date: April 18, 2013
    Applicant: REVOLYMER LIMITED
    Inventors: Thomas Charles Castle, Yasmine El Mourabit, David Alan Pears
  • Publication number: 20100266513
    Abstract: The present invention concerns an amphiphilic polymeric material which comprises a straight or branched chain carbon-carbon backbone and a multiplicity of side chains attached to the backbone, wherein the side chains have formula (I). At least one of R1 and R2 is the group —C(O)Q; wherein Q comprises a hydrophilic polymeric group terminated with an amine. Chewing gum bases and chewing gum compositions comprising the amphiphilic polymeric material are provided.
    Type: Application
    Filed: November 26, 2008
    Publication date: October 21, 2010
    Applicant: REVOLYMER LIMITED
    Inventors: David Alan Pears, Pennadam Shanmugam Sivanand, Thomas Charles Castle
  • Publication number: 20100233100
    Abstract: An amphiphilic polymeric material which has a straight or branched chain polymer backbone and a multiplicity of side chains attached to the backbone, wherein the backbone is a copolymer of at least one ethylenically-unsaturated aliphatic hydrocarbon monomer and maleic anhydride, or is a terpolymer of maleic anhydride, ethylene, and a further ethylenically unsaturated monomer. A method of synthesising said polymeric material is also provided, together with chewing gum bases, compositions and emulsions comprising amphiphilic polymeric materials.
    Type: Application
    Filed: November 26, 2008
    Publication date: September 16, 2010
    Applicant: REVOLYMER LIMITED
    Inventors: Thomas Charles Castle, Roger B. Pettman, Terence Cosgrove