Patents by Inventor Thomas J. Engardio
Thomas J. Engardio 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).
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Patent number: 8633292Abstract: A photochromic composition for making optical materials comprising a polyurethane prepolymer formed by combining an isocyanate and a compound having an active hydrogen containing group, a polysilsequioxane and a photochromic compound. The photochromic composition may also include a monomer that has both an active hydrogen containing group and an unsaturated group. The polysilsesquioxane is incorporated as a copolymer and/or as a polysilsequioxane-chemically modified polyurethane.Type: GrantFiled: March 26, 2009Date of Patent: January 21, 2014Assignee: Signet ArmorliteInventors: Geoffrey Yuxin Hu, Thomas J. Engardio
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Patent number: 8343391Abstract: 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: GrantFiled: January 14, 2011Date of Patent: January 1, 2013Assignee: Signet Armorlite, Inc.Inventors: Paul D. Schlunt, Thomas J. Engardio
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Patent number: 8163357Abstract: A scratch-resistant coating comprising a polymer including a functionalized polysilsesquioxane. The scratch-resistant coating is exposed to oxidizing conditions (e.g., ozone or ultraviolet light) that modify the surface chemistry of the coating to enhance adhesion to inorganic thin film coatings, such as antireflective coatings.Type: GrantFiled: March 26, 2009Date of Patent: April 24, 2012Assignee: Signet Armorlite, Inc.Inventors: Thomas J. Engardio, Geoffrey Yuxin Hu, Dae Ki Kang, Erick S. Rorye
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Publication number: 20120018686Abstract: 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: ApplicationFiled: January 14, 2011Publication date: January 26, 2012Inventors: Paul D. Schlunt, Thomas J. Engardio
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Patent number: 7892459Abstract: 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: GrantFiled: December 30, 2008Date of Patent: February 22, 2011Assignee: Signet Armorlite, Inc.Inventors: Paul D. Schlunt, Thomas J. Engardio
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Publication number: 20100249265Abstract: A scratch-resistant coating comprising a polymer including a functionalized polysilsesquioxane. The scratch-resistant coating is exposed to oxidizing conditions (e.g., ozone or ultraviolet light) that modify the surface chemistry of the coating to enhance adhesion to inorganic thin film coatings, such as antireflective coatings.Type: ApplicationFiled: March 26, 2009Publication date: September 30, 2010Inventors: Thomas J. Engardio, Geoffrey Yuxin Hu, Dae Ki Kang, Erick S. Rorye
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Publication number: 20100249264Abstract: A photochromic composition for making optical materials comprising a polyurethane prepolymer formed by combining an isocyanate and a compound having an active hydrogen containing group, a polysilsequioxane and a photochromic compound. The photochromic composition may also include a monomer that has both an active hydrogen containing group and an unsaturated group. The polysilsesquioxane is incorporated as a copolymer and/or as a polysilsequioxane-chemically modified polyurethane.Type: ApplicationFiled: March 26, 2009Publication date: September 30, 2010Inventors: Geoffrey Yuxin Hu, Thomas J. Engardio
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Publication number: 20090114889Abstract: 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: ApplicationFiled: December 30, 2008Publication date: May 7, 2009Inventors: Paul D. Schlunt, Thomas J. Engardio
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Patent number: 7488510Abstract: 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: GrantFiled: October 28, 2003Date of Patent: February 10, 2009Assignee: Signet Armorlite, Inc.Inventors: Paul D. Schlunt, Thomas J. Engardio
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Patent number: 6863848Abstract: A method of manufacturing a composite photochromic ophthalmic lens having an index of refraction of at least 1.49 is disclosed.Type: GrantFiled: August 30, 2002Date of Patent: March 8, 2005Assignee: Signet Armorlite, Inc.Inventors: Thomas J. Engardio, Paul D. Schlunt, Jimmie E Adcock
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Patent number: 6863844Abstract: 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: GrantFiled: August 30, 2002Date of Patent: March 8, 2005Assignee: Signet Armorlite, Inc.Inventors: Thomas J. Engardio, Paul D. Schlunt
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Publication number: 20040041132Abstract: 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: ApplicationFiled: August 30, 2002Publication date: March 4, 2004Inventors: Thomas J. Engardio, Paul D. Schlunt
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Publication number: 20040041287Abstract: A method of manufacturing a composite photochromic ophthalmic lens having an index of refraction of at least 1.49 is disclosed.Type: ApplicationFiled: August 30, 2002Publication date: March 4, 2004Inventors: Thomas J. Engardio, Paul D. Schlunt, Jimmie E. Adcock
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Patent number: 6099123Abstract: Unsaturated polyester resin-based ophthalmic lens compositions that are modified for unexpected improvement in speed of manufacture while maintaining uniform, low optical distortion and/or improved tint speed by the addition to the polyester composition of at least one photoinitiator, preferably having at least some activity at a wavelength above about 380 nm so that a UV-absorbing compound can be included in the polyester lens composition, and the polyester resin composition is photocured to gelation in about 7 minutes or less, e.g., using a light intensity of at least about 300 microwatts/cm.sup.2, more preferably at least about 500 microwatts/cm.sup.2, most preferably at least about 1,000 microwatts/cm.sup.2.Type: GrantFiled: September 4, 1997Date of Patent: August 8, 2000Assignee: Signet Armorlite, Inc.Inventors: Thomas J. Engardio, Philip D. Dalsin
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Patent number: 5886764Abstract: Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.Type: GrantFiled: June 13, 1997Date of Patent: March 23, 1999Assignee: Signet Armorlite, Inc.Inventors: Thomas J. Engardio, Philip D. Dalsin, Dae Ki Kang, Jean S. Lee
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Patent number: 5852112Abstract: Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.Type: GrantFiled: June 27, 1997Date of Patent: December 22, 1998Assignee: Signet Armorlite, Inc.Inventors: Thomas J. Engardio, Philip D. Dalsin, Dae Ki Kang
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Patent number: 5694195Abstract: Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.Type: GrantFiled: September 30, 1994Date of Patent: December 2, 1997Assignee: Signet Armorlite, Inc.Inventors: Thomas J. Engardio, Philip D. Dalsin, Dae Ki Kang, Jean S. Lee