Patents by Inventor Hari P. Reddy

Hari P. Reddy 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).

  • Architectural concrete and process to make same
    Patent number: 6951686
    Abstract: A concrete article comprised of concrete having therein a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester. The concrete article is made by mixing concrete, water and a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester and curing said concrete mixture forming the concrete article.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: October 4, 2005
    Assignee: Dow Global Technologies Inc.
    Inventors: Aleksander J. Pyzik, Kenneth B. Stewart, Jr., John M. Beckerdite, Hari P. Reddy, Uday V. Deshmukh, Ted A. Morgan, Sharon M. Allen, Kwanho Yang, Nicholas M. Shinkel, David F. Pawlowski
  • Plastic fibers for improved concrete
    Patent number: 6844065
    Abstract: A monofilament plastic fiber useful in reducing plastic shrinkage cracking of concrete articles has been discovered. The fiber has a core that is a polyolefin that is at least partially enveloped by a sheath that is a copolymer of an olefin and at least one olefinically unsaturated comonomer selected from the group consisting of an unsaturated carboxylic acid, alkyl acrylate, alkyl methacrylate and vinyl ester.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: January 18, 2005
    Assignee: Dow Global Technologies, Inc.
    Inventors: Hari P. Reddy, Aleksander J. Pyzik, Ted A. Morgan, Sharon M. Allen, Jill R. Marra, Nicholas M. Shinkel
  • Substantially random interpolymer grafted witn one or more olefinically unsaturated organic monomers
    Publication number: 20030216509
    Abstract: A graft polymer according to the invention contains a backbone of one or more substantially random interpolymers, comprising: (1) polymer units derived from: (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or (c) a combination of at least one aromatic vinyl or vinylidene monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, and (2) polymer units derived from at least one of ethylene and/or a C3-20 &agr;-olefin; and (3) optionally polymer units derived from one or more of ethylenically unsaturated polymerizable monomers other than those derived from (1) and (2); said backbone being grafted with one or more olefinically unsaturated organic monomer(s). In a preferred embodiment such graft polymers were prepared using a reactive extrusion process.
    Type: Application
    Filed: November 15, 2002
    Publication date: November 20, 2003
    Inventors: Gabriele Goethel, Michael E Rowland, Martin J Guest, Steve R Betso, Karin Katzer, Thomas T Allgeuer, Ronald Wevers, Hari P Reddy
  • Architectural concrete and process to make same
    Publication number: 20030170439
    Abstract: A concrete article comprised of concrete having therein a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester. The concrete article is made by mixing concrete, water and a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester and curing said concrete mixture forming the concrete article.
    Type: Application
    Filed: February 19, 2003
    Publication date: September 11, 2003
    Inventors: Aleksander J. Pyzik, Kenneth B. Stewart, John M. Beckerdite, Hari P. Reddy, Uday V. Deshmukh, Ted A. Morgan, Sharon M. Allen, Kwanho Yang, Nicholas M. Shinkel, David F. Pawlowski
  • Plastic fibers for improved concrete
    Publication number: 20030134116
    Abstract: A monofilament plastic fiber useful in reducing plastic shrinkage cracking of concrete articles has been discovered. The fiber is comprised of a core that is a polyolefin that is at least partially enveloped by a sheath that is a copolymer of an olefin and at least one olefinically unsaturated comonomer selected from the group consisting of an unsaturated carboxylic acid, alkyl acrylate, alkyl methacrylate and vinyl ester.
    Type: Application
    Filed: December 23, 2002
    Publication date: July 17, 2003
    Inventors: Hari P. Reddy, Aleksander J. Pyzik, Ted A. Morgan, Sharon M. Allen, Jill R. Marra, Nicholas M. Shinkel
  • Architectural concrete and process to make same
    Publication number: 20020110678
    Abstract: A concrete article comprised of concrete having therein a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester. The concrete article is made by mixing concrete, water and a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester and curing said concrete mixture forming the concrete article.
    Type: Application
    Filed: December 7, 2000
    Publication date: August 15, 2002
    Inventors: Aleksander J. Pyzik, Kenneth B. Stewart, John M. Beckerdite, Hari P. Reddy, Uday V. Deshmukh, Ted A. Morgan, Sharon M. Allen, Kwanho Yang, Nicholas M. Shinkel, David F. Pawlowski