Patents by Inventor Steven P. Armes

Steven P. Armes 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: 9611335
    Abstract: A method of preparing a block copolymer of Formula (B) wherein P1 represents a substantially aqueously soluble polymeric component and P2 represents a substantially aqueously insoluble polymeric component, comprises admixing an aqueously soluble polymer macro-chain transfer agent comprising P1 with a monomer (M2) and initiating an aqueous dispersion-type radical addition fragmentation chain transfer (RAFT) polymerization. (P1) is derived from a monomer (M1) selected from monomers of the Formulae (M1A), (M1B) and/or (M1C) where R1, R10 and R11 represent a substituent of (M1A) or (M1C) which allows P1 to be at least partially aqueously soluble, R2 represents H, CH3 or CN, RS represents one or more substituents of the aromatic ring effective to allow P1 to be at least partially aqueously soluble, and monomer M2 is selected from: where R3 is a substituent of (M2) which allows P2 to be substantially aqueously insoluble, and R4 and R6 independently represent H or methyl.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: April 4, 2017
    Assignee: University of Sheffield
    Inventors: Steven P. Armes, Yuting Li
  • Publication number: 20130046052
    Abstract: A method of preparing a block copolymer of Formula (B) wherein P1 represents a substantially aqueously soluble polymeric component and P2 represents a substantially aqueously insoluble polymeric component, comprises admixing an aqueously soluble polymer macro-chain transfer agent comprising P1 with a monomer (M2) and initiating an aqueous dispersion-type radical addition fragmentation chain transfer (RAFT) polymerisation. (P1) is derived from a monomer (M1) selected from monomers of the Formulae (M1A), (M1B) and/or (M1C) where R1, R10 and R11 represent a substituent of (M1A) or (M1C) which allows P1 to be at least partially aqueously soluble, R2 represents H, CH3 or CN, RS represents one or more substituents of the aromatic ring effective to allow P1 to be at least partially aqueously soluble, and monomer M2 is selected from: where R3 is a substituent of (M2) which allows P2 to be substantially aqueously insoluble, and R4 and R6 independently represent H or methyl.
    Type: Application
    Filed: March 8, 2011
    Publication date: February 21, 2013
    Applicant: THE UNIVERSITY OF SHEFFIELD
    Inventors: Steven P. Armes, Yuting Li
  • Publication number: 20100160491
    Abstract: In a process for producing composite particles comprising a polymer and a finely divided inorganic solid, the process comprises providing an aqueous dispersion of a sol of the modified finely divided solid, adding at least one monomer suitable for free radical type polymerisation and adding a suitable free radical polymerisation initiator to initiate polymerisation of the monomer, wherein the reaction mixture is free from added surfactant, dispersant or auxiliary co-monomer. Compositions comprising the resulting particles are also disclosed.
    Type: Application
    Filed: May 16, 2008
    Publication date: June 24, 2010
    Inventors: Steven P. Armes, Andreas Schmid
  • Patent number: 5021193
    Abstract: Processable conductive polymers including an oxidized, polymerized aromatic heterocyclic monomer, e.g., pyrrole, an stabilizing effective amount of a poly(vinyl acetate) and dopant anions, and a process of preparing said processable conductive polymers directly in a nonaqueous medium such as methyl acetate, methyl formate, ethyl formate, and propyl formate are disclosed.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: June 4, 1991
    Assignee: United States Department of Energy
    Inventors: Steven P. Armes, Mahmoud Aldissi
  • Patent number: 4959162
    Abstract: Processable electrically conductive latex polymer compositions including colloidal particles of an oxidized, polymerized aromatic heterocyclic monomer, a stabilizing effective amount of a vinyl pyridine-containing polymer and dopant anions and a method of preparing such polymer compositions are disclosed.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: September 25, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Steven P. Armes, Mahmoud Aldissi
  • Patent number: 4959180
    Abstract: Processable electrically conductive latex polymer compositions including colloidal particles of an oxidized, polymerized amino-substituted aromatic monomer, a stabilizing effective amount of a random copolymer containing amino-benzene type moieties as side chain constituents, and dopant anions, and a method of preparing such polymer compositions are provided.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: September 25, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Steven P. Armes, Mahmoud Aldissi