Patents by Inventor Mitchell G. Dibbs

Mitchell G. Dibbs 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).

  • Acid functional polymers based on benzocyclobutene
    Patent number: 6361926
    Abstract: The invention is a curable cyclobutarene based polymer comprising acid functional pendant groups. The cured polymer displays excellent qualities of toughness, adhesion, dielectric constant, and low stress. The preferred system is soluble in an aqueous base and can be used to generate patterned films with excellent resolution without the need to handle organic developer solvents.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: March 26, 2002
    Assignee: The Dow Chemical Company
    Inventors: Ying H. So, Robert A. DeVries, Mitchell G. Dibbs, Robert L. McGee, Edward O. Shaffer, II, Michael J. Radler, Richard P. DeCaire
  • Intrinsically low birefringent molding polymers and optical storage disks therefrom
    Patent number: 5218068
    Abstract: Intrinsically low birefringent molding polymers having a molten stress optic coefficient that is greater than or equal to -1000 Brewsters and less than or equal to +1000 Brewsters, a glass transition temperature of at least 140.degree. C., and a water absorption (A.sub.H.sbsb.2.sub.O) according to ASTM D570-81 after 24 hours immersion in water at 23.degree. C. of less than 0.25 percent comprising in polymerized form at least one structural component providing a positive melt homopolymer stress optic coefficient and at least one other structural component providing a negative melt homopolymer stress optic coefficient.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: June 8, 1993
    Assignee: The Dow Chemical Company
    Inventors: Brian R. Maurer, Mitchell G. Dibbs
  • Optically isotropic blends of styrene/acrylonitrile and methyl methacrylate/glutarimide copolymers
    Patent number: 5218051
    Abstract: Optically isotropic blends comprising styrene/acrylonitrile copolymers containing from 18 to 32 percent acrylonitrile and methyl methacrylate/glutarimide resins containing from 10 to 50 weight percent methyl methacrylate and having stress optical coefficient of between -500 Brewsters and +500 Brewsters are usefully employed in the preparation of molded objects having reduced birefringence.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: June 8, 1993
    Assignee: The Dow Chemical Company
    Inventors: Brian R. Maurer, Mitchell G. Dibbs
  • Aromatic polycyanate/monocyanate comonomer compositions and polytriazines derived therefrom
    Patent number: 5089660
    Abstract: A comonomer composition of an aromatic polycyanate and an aromatic monocyanate substituted at each position ortho to the cyanate group, and a polytriazine copolymer derived therefrom.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: February 18, 1992
    Assignee: The Dow Chemical Company
    Inventors: Daniel J. Murray, Mitchell G. Dibbs, Philip C. Yang
  • Acid functional polymers based on benzocyclobutene
    Patent number: RE40728
    Abstract: The invention is a curable cyclobutarene based polymer comprising acid functional pendant groups. The cured polymer displays excellent qualities of toughness, adhesion, dielectric constant, and low stress. The preferred system is soluble in an aqueous base and can be used to generate patterned films with excellent resolution without the need to handle organic developer solvents.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: June 9, 2009
    Inventors: Ying H. So, Robert A. DeVries, Mitchell G. Dibbs, Robert L. McGee, Edward O. Shaffer, II, Michael J. Radler, Richard P. DeCaire