Patents by Inventor Paul D. Schlunt

Paul D. Schlunt 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).

  • Compositions for the preparation of composite photochromic polycarbonate lenses
    Patent number: 8343391
    Abstract: Photochromic matrix compositions and tie layer compositions useful for the preparation of photochromic polycarbonate lenses are disclosed. The tie layer compositions facilitate adhesion of the photochromic matrix composition to the polycarbonate lens. The photochromic matrix compositions can contain a flexible hydrophilic dimethacrylate monomer, one or more hydrophobic monomers, a flexible hydrophobic multi(meth)acrylate monomer, one or more urethane methacrylate oligomers, and one or more photochromic dyes. The tie layer compositions can contain one or more methacrylate monomers, a (meth)acrylated oligomer with a polycarbonate backbone, one or more urethane methacrylate oligomers, and a solvent or solvent mixture. Methods of preparing photochromic polycarbonate lenses are also disclosed, involving the serial application of the tie layer composition, then the photochromic matrix composition to the lens.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: January 1, 2013
    Assignee: Signet Armorlite, Inc.
    Inventors: Paul D. Schlunt, Thomas J. Engardio
  • Compositions for the preparation of composite photochromic polycarbonate lenses
    Publication number: 20120018686
    Abstract: Photochromic matrix compositions and tie layer compositions useful for the preparation of photochromic polycarbonate lenses are disclosed. The tie layer compositions facilitate adhesion of the photochromic matrix composition to the polycarbonate lens. The photochromic matrix compositions can contain a flexible hydrophilic dimethacrylate monomer, one or more hydrophobic monomers, a flexible hydrophobic multi(meth)acrylate monomer, one or more urethane methacrylate oligomers, and one or more photochromic dyes. The tie layer compositions can contain one or more methacrylate monomers, a (meth)acrylated oligomer with a polycarbonate backbone, one or more urethane methacrylate oligomers, and a solvent or solvent mixture. Methods of preparing photochromic polycarbonate lenses are also disclosed, involving the serial application of the tie layer composition, then the photochromic matrix composition to the lens.
    Type: Application
    Filed: January 14, 2011
    Publication date: January 26, 2012
    Inventors: Paul D. Schlunt, Thomas J. Engardio
  • Compositions for the preparation of composite photochromic polycarbonate lenses
    Patent number: 7892459
    Abstract: Photochromic matrix compositions and tie layer compositions useful for the preparation of photochromic polycarbonate lenses are disclosed. The tie layer compositions facilitate adhesion of the photochromic matrix composition to the polycarbonate lens. The photochromic matrix compositions can contain a flexible hydrophilic dimethacrylate monomer, one or more hydrophobic monomers, a flexible hydrophobic multi(meth)acrylate monomer, one or more urethane methacrylate oligomers, and one or more photochromic dyes. The tie layer compositions can contain one or more methacrylate monomers, a (meth)acrylated oligomer with a polycarbonate backbone, one or more urethane methacrylate oligomers, and a solvent or solvent mixture. Methods of preparing photochromic polycarbonate lenses are also disclosed, involving the serial application of the tie layer composition, then the photochromic matrix composition to the lens.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: February 22, 2011
    Assignee: Signet Armorlite, Inc.
    Inventors: Paul D. Schlunt, Thomas J. Engardio
  • Compositions for the preparation of composite photochromic polycarbonate lenses
    Publication number: 20090114889
    Abstract: Photochromic matrix compositions and tie layer compositions useful for the preparation of photochromic polycarbonate lenses are disclosed. The tie layer compositions facilitate adhesion of the photochromic matrix composition to the polycarbonate lens. The photochromic matrix compositions can contain a flexible hydrophilic dimethacrylate monomer, one or more hydrophobic monomers, a flexible hydrophobic multi(meth)acrylate monomer, one or more urethane methacrylate oligomers, and one or more photochromic dyes. The tie layer compositions can contain one or more methacrylate monomers, a (meth)acrylated oligomer with a polycarbonate backbone, one or more urethane methacrylate oligomers, and a solvent or solvent mixture. Methods of preparing photochromic polycarbonate lenses are also disclosed, involving the serial application of the tie layer composition, then the photochromic matrix composition to the lens.
    Type: Application
    Filed: December 30, 2008
    Publication date: May 7, 2009
    Inventors: Paul D. Schlunt, Thomas J. Engardio
  • Compositions and methods for the preparation of composite photochromic polycarbonate lenses
    Patent number: 7488510
    Abstract: Photochromic matrix compositions and tie layer compositions useful for the preparation of photochromic polycarbonate lenses are disclosed. The tie layer compositions facilitate adhesion of the photochromic matrix composition to the polycarbonate lens. The photochromic matrix compositions can contain a flexible hydrophilic dimethacrylate monomer, one or more hydrophobic monomers, a flexible hydrophobic multi(meth)acrylate monomer, one or more urethane methacrylate oligomers, and one or more photochromic dyes. The tie layer compositions can contain one or more methacrylate monomers, a (meth)acrylated oligomer with a polycarbonate backbone, one or more urethane methacrylate oligomers, and a solvent or solvent mixture. Methods of preparing photochromic polycarbonate lenses are also disclosed, involving the serial application of the tie layer composition, then the photochromic matrix composition to the lens.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: February 10, 2009
    Assignee: Signet Armorlite, Inc.
    Inventors: Paul D. Schlunt, Thomas J. Engardio
  • Methods for preparing composite photochromic ophthalmic lenses
    Patent number: 6863848
    Abstract: A method of manufacturing a composite photochromic ophthalmic lens having an index of refraction of at least 1.49 is disclosed.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 8, 2005
    Assignee: Signet Armorlite, Inc.
    Inventors: Thomas J. Engardio, Paul D. Schlunt, Jimmie E Adcock
  • Photochromic matrix compositions for use in ophthalmic lenses
    Patent number: 6863844
    Abstract: Photochromic compositions are disclosed herein. The compositions comprise mixtures of methacrylate monomers, which when polymerized, provide a polymer matrix that exhibits improved fading characteristics of incorporated photochromic dyes and good photochromic temperature stability. The compositions are particularly useful as a composite layer on polymer-based ophthalmic lenses.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 8, 2005
    Assignee: Signet Armorlite, Inc.
    Inventors: Thomas J. Engardio, Paul D. Schlunt
  • Photochromic matrix compositions for use in ophthalmic lenses
    Publication number: 20040041132
    Abstract: Photochromic compositions are disclosed herein. The compositions comprise mixtures of methacrylate monomers, which when polymerized, provide a polymer matrix that exhibits improved fading characteristics of incorporated photochromic dyes and good photochromic temperature stability. The compositions are particularly useful as a composite layer on polymer-based ophthalmic lenses.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventors: Thomas J. Engardio, Paul D. Schlunt
  • Methods for preparing composite photochromic ophthalmic lenses
    Publication number: 20040041287
    Abstract: A method of manufacturing a composite photochromic ophthalmic lens having an index of refraction of at least 1.49 is disclosed.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventors: Thomas J. Engardio, Paul D. Schlunt, Jimmie E. Adcock