Patents by Inventor Gary D. Parsons

Gary D. Parsons 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: 6815475
    Abstract: Compositions comprising hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, pultruded articles, fibers, coated articles, injection molded articles and blow or rotational molded articles.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: November 9, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Robert J. Donald, Jerry L. Hahnfeld, Gary D. Parsons, Stephen F. Hahn, Rajen M. Patel, Calvin P. Esneault, Laura M. Phipps, James E. Pate, III
  • Publication number: 20030119971
    Abstract: Compositions comprising hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, pultruded articles, fibers, coated articles, injection molded articles and blow or rotational molded articles.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 26, 2003
    Inventors: Robert J. Donald, Jerry L. Hahnfeld, Gary D. Parsons, Stephen F. Hahn, Rajen M. Patel, Calvin P. Esneault, Laura M. Phipps, James E. Pate
  • Patent number: 6451924
    Abstract: The present invention is directed to a hydrogenated block copolymer of a vinyl aromatic and butadiene which is useful in the preparation of optical media discs having very low birefringence.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: September 17, 2002
    Assignee: Dow Global Technologies Inc.
    Inventors: Jerry L. Hahnfeld, Gary D. Parsons, Stephen F. Hahn, Mary Ann Jones
  • Patent number: 6426390
    Abstract: The present invention is directed to a composition comprising a hydrogenated block copolymer of a vinyl aromatic and conjugated diene polymer, having a lamellar morphology and high aromatic hydrogenation level.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: July 30, 2002
    Assignee: Dow Global Technology Inc.
    Inventors: Jerry L. Hahnfeld, Mary Ann Jones, Charles A. Berglund, Gary D. Parsons, Cora M. Leibig, Stephen F. Hahn
  • Patent number: 6416875
    Abstract: The present invention is directed to a multi-component article which comprises at least two components, each component being produced from a different polymer composition, and at least one polymer composition comprises a hydrogenated block copolymer comprising at least two distinct blocks of hydrogenated vinyl aromatic polymer, and at least one block of hydrogenated conjugated diene polymer, characterized by: a hydrogenation level such that each hydrogenated vinyl aromatic polymer block has a hydrogenation level of greater than 90 percent and the hydrogenated conjugated diene polymer block has a hydrogenation level of greater than 95 percent, with the proviso that when more than one component is prepared from compositions comprising hydrogenated block copolymers, each composition differs compositionally such that the vinyl aromatic polymer block content of the compositions differs by at least 20 percent.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: July 9, 2002
    Assignee: Dow Global Technologies Inc.
    Inventors: Gary D. Parsons, James P. Maher
  • Publication number: 20020061981
    Abstract: Compositions comprising hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, pultruded articles, fibers, coated articles, injection molded articles and blow or rotational molded articles.
    Type: Application
    Filed: August 31, 2001
    Publication date: May 23, 2002
    Inventors: Robert J. Donald, Gary D. Parsons, Jerry L. Hahnfeld, Stephen F. Hahn, Rajen M. Patel, Laura M. Phipps, Calvin P. Esneault, James E. Pate
  • Publication number: 20020061982
    Abstract: Flexible hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, coatings, injection molded articles, blow or rotational molded articles and pultruded articles.
    Type: Application
    Filed: August 31, 2001
    Publication date: May 23, 2002
    Inventors: Robert J. Donald, Jerry L. Hahnfeld, Gary D. Parsons, Stephen F. Hahn, Rajen M. Patel, Calvin P. Esneault, Laura M. Phipps, James E. Pate, Debkumar Bhattacharjee
  • Patent number: 6350820
    Abstract: The present invention is directed to a hydrogenated copolymer of a vinyl aromatic and conjugated diene monomer which produces optical media discs having extremely low birefringence.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: February 26, 2002
    Assignee: The Dow Chemical Company
    Inventors: Jerry L. Hahnfeld, Gary D. Parsons, Stephen F. Hahn, Mary Ann Jones
  • Publication number: 20010048991
    Abstract: The present invention is related to flexible information-carrying substrates, such as optical media discs, which can withstand the stresses of being handled, processed and deformed, yet maintain enough integrity and properties such that it can still be read without the use of a rigid adapter.
    Type: Application
    Filed: November 30, 2000
    Publication date: December 6, 2001
    Inventors: Henri-Luc Martin, Mary Ann Jones, Jerry L. Hahnfeld, Gary D. Parsons
  • Patent number: 6299802
    Abstract: The present invention relates to a process for producing DVD's using injection molding techniques, without the use of compression, from a polymer having a glass transition temperature (Tg) of greater than 110° C. as measured by Differential Scanning Calorimetry (DSC) at 10° C./min., an elastic modulus (G′) of less than or equal to 1000 dynes/cm2 at a temperature of 240° C., as measured by Dynamic Mechanical Spectroscopy measurements at a temperature ramp rate of 3° C./min., and a shear rate of 1 radian/sec using a parallel plate geometry (under nitrogen), and a complex viscosity (Eta*) of less than 2000 poise, as measured according to Dynamic Mechanical Spectroscopy measurements, using shear rate sweeps at 280° C., and a shear rate of 1 radian/sec using a parallel plate geometry (under nitrogen).
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: October 9, 2001
    Assignee: The Dow Chemical Company
    Inventors: Gary D. Parsons, James P. Maher
  • Patent number: 4740560
    Abstract: A polyblend of a high graft copolymer, a low graft copolymer and a matrix interpolymer is made by:(A) mixing a latex of the high graft copolymer and a latex of the low graft copolymer to provide a mixture thereof;(B) coagulating and at least partially dewatering the mixture of step (A);(C) melt blending the mixture of step (B) to provide a first polyblend; and(D) melt blending the first polyblend of step (C) with matrix interpolymer to provide a second polyblend.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: April 26, 1988
    Assignee: The Dow Chemical Company
    Inventors: Eugene R. Moore, Gary D. Parsons, Paul C. Balliet