Patents by Inventor Robert Blomquist
Robert Blomquist 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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Printing form precursor having indicia and a method for preparing a printing form from the precursor
Patent number: 9477152Abstract: The present invention relates to a photosensitive printing form precursor and a method for forming a printing form from the precursor. The precursor includes a support and a layer of a photosensitive composition adjacent the support, in which at least one indicia is disposed between the support and the photosensitive layer. The indicia identifies the precursor, is retained throughout a multi-step process to convert the precursor into a printing form and in the end-use of the printing form.Type: GrantFiled: September 3, 2013Date of Patent: October 25, 2016Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Robert Blomquist, Violeta Lungu, Adrian Lungu, Rajgopal Subramanian -
PRINTING FORM PRECURSOR HAVING INDICIA AND A METHOD FOR PREPARING A PRINTING FORM FROM THE PRECURSOR
Publication number: 20140087306Abstract: The present invention relates to a photosensitive printing form precursor and a method for forming a printing form from the precursor. The precursor includes a support and a layer of a photosensitive composition adjacent the support, in which at least one indicia is disposed between the support and the photosensitive layer. The indicia identifies the precursor, is retained throughout a multi-step process to convert the precursor into a printing form and in the end-use of the printing form.Type: ApplicationFiled: September 3, 2013Publication date: March 27, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Robert Blomquist, Violeta Lungu, Adrian Lungu, Rajgopal Subramanian -
Publication number: 20090295041Abstract: The invention pertains to a printing form precursor and a method for preparing a stamp from the precursor for use in soft lithographic applications. The printing form precursor includes a composition layer of a fluorinated compound capable of polymerization upon exposure to actinic radiation and a flexible support transparent to the actinic radiation adjacent the composition layer.Type: ApplicationFiled: July 31, 2009Publication date: December 3, 2009Applicant: E.I.DU PONT DE NEMOURS AND COMPANYInventors: MARIA PETRUCCI-SAMIJA, Graciela Beatriz Blanchet, Robert Blomquist, Hee Hyun Lee
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Publication number: 20080000373Abstract: The invention pertains to a printing form precursor and a method for preparing a stamp from the precursor for use in soft lithographic applications. The printing form precursor includes a composition layer of a fluorinated compound capable of polymerization upon exposure to actinic radiation and a flexible support transparent to the actinic radiation adjacent the composition layer.Type: ApplicationFiled: June 30, 2006Publication date: January 3, 2008Inventors: Maria Petrucci-Samija, Graciela Beatriz Blanchet, Robert Blomquist, Hee Hyun Lee
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Patent number: 7030209Abstract: The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to the aromatic or heteroaromatic moiety through an ether or thioether; and at least one ethylenically unsaturated moiety, each ethylenically unsaturated moiety being linked to one of the fluorinated alkylene, arylene or polyether moieties. The present invention also provides an energy curable composition including a compound having an isocyanurate moiety, three fluorinated alkylene, arylene, or polyether moieties linked to the isocyanurate moiety at the nitrogens of the isocyanurate, and at least one ethylenically unsaturated moiety linked to one of the fluorinated alkylene, arylene, or polyether moieties. The present invention further provides polymeric materials and optical devices made using these compositions.Type: GrantFiled: February 4, 2002Date of Patent: April 18, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Blomquist, Jian Ming S. Deng
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Patent number: 6943232Abstract: The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to the aromatic or heteroaromatic moiety through an āOā or āSā linkage; and at least one ethylenically unsaturated moiety, each ethylenically unsaturated moiety being linked to one of the fluorinated alkylene, arylene or polyether moieties. The present invention also provides an energy curable composition including a compound having an isocyanurate moiety, three fluorinated alkylene, arylene, or polyether moieties linked to the isocyanurate moiety at the nitrogens of the isocyanurate, and at least one ethylenically unsaturated moiety linked to one of the fluorinated alkylene, arylene, or polyether moieties. The present invention further provides polymeric materials and optical devices made using these compositions.Type: GrantFiled: September 23, 2002Date of Patent: September 13, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Blomquist, Jian Ming S. Deng
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Publication number: 20040209202Abstract: Vinyl ether compounds having the formula: R—O—X—O—CH═CH2 wherein R is a radical selected from R1—CnHm—C(═O)—, R1—CnHm—CH[—O—X—O—CH═CH2—], R1—CnHm—CH['O—X—O—CH═CH2—]C(═O)—, R1—CnHm—CH[—C(═O)—O—X—O—CH═CH2—], R1—CnHm—CH[—C(═O)—O—X—O—CH═CH2—]C(═O)—, R1—[CFCl—CF2—]pCH2— and HCFCl—CF2—, wherein R1 is an unsubstituted or substituted fluorinated aliphatic radical, an unsubstituted or substituted fluorinated cyclic aliphatic radical, an unsubstituted or substituted fluorinated aromatic radical, an unsubstituted or substituted fluorinated araliphatic radical, or an unsubstituted or substituted fluorinated heterocyclic radical; n is an integer between 1 and 6, inType: ApplicationFiled: May 11, 2004Publication date: October 21, 2004Applicant: Honeywell International Inc.Inventors: David Nalewajek, David Bradley, John Schabel, Robert Blomquist
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Patent number: 6800424Abstract: The invention provides organic optical waveguide devices which employ perfluoropolymeric materials having low optical loss and low birefringence. An optical element has a substrate; a patterned, light transmissive perfluoropolymer core composition; and a light reflecting cladding composition on the pattern of the core. Writing of high-efficiency waveguide gratings is also disclosed.Type: GrantFiled: January 8, 2003Date of Patent: October 5, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Baopei Xu, Louay Eldada, Robert A. Norwood, Robert Blomquist
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Patent number: 6768839Abstract: Provided are polymeric or polymeric and glass optical fiber devices which have a tunable wavelength response in a polymeric fiber Bragg grating. An optical fiber is formed having a tubular cladding of a first polymeric or glass composition having a first index of refraction, wherein the cladding has a longitudinal axis. A core of a second polymeric composition is within the cladding and extends along and around the longitudinal axis. The second polymeric composition has a second index of refraction which is greater than the index of refraction of the first polymeric composition. A Bragg grating having a plurality of spaced grating elements is formed in the core. The arrangement then has a means, such as a heater, for changing the spacing between the grating elements.Type: GrantFiled: September 14, 2001Date of Patent: July 27, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Blomquist, Robert Norwood
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Patent number: 6728445Abstract: A wavelength selective optical device for locking to a selected wavelength in an ITU grid includes a first waveguide, a second waveguide, a heating element and a control unit. The first waveguide includes a tunable filter formed in the first waveguide and the second waveguide includes a reference filter formed in the second waveguide. The heating element is in thermal contact with the tunable filter and the reference filter and the control unit is coupled to the heating element and the reference filter. The control unit varies a temperature of the heating element responsive to an indication signal provided by the reference filter to adjust the selected channel of the tunable filter.Type: GrantFiled: May 30, 2002Date of Patent: April 27, 2004Assignee: E. I. du Ponte de Nemours and CompanyInventors: Robert Blomquist, George Boudoughian, Louay Eldada, Michael J. McFarland, Lawrence W. Shacklette
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Patent number: 6711336Abstract: A fluorinated polymerizable compound useful for fabricating planar optical devices includes at least one fluorinated alkylene or alkylene ether moiety and at least two terminal acrylate moieties, each terminal acrylate moiety being connected to one of the fluorinated alkylene or fluorinated alklene ether moieties by an ester linking group. The fluorinated polymerizable compounds, or macromers, of this invention are useful for forming optical components exhibiting a refractive index comparable to that of glass fiber waveguides, while also exhibiting very low absorption losses. Polymerizable compositions suitable for preparing optical components can be prepared by combining the macromers of the invention with a photoinitiator. Conventional optical monomers may also be employed, if desired.Type: GrantFiled: October 29, 2002Date of Patent: March 23, 2004Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert Blomquist, Jian Ming S. Deng, Lawrence W. Shacklette, MacRae Maxfield
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Publication number: 20030223687Abstract: A wavelength selective optical device for locking to a selected wavelength in an ITU grid includes a first waveguide, a second waveguide, a heating element and a control unit. The first waveguide includes a tunable filter formed in the first waveguide and the second waveguide includes a reference filter formed in the second waveguide. The heating element is in thermal contact with the tunable filter and the reference filter and the control unit is coupled to the heating element and the reference filter. The control unit varies a temperature of the heating element responsive to an indication signal provided by the reference filter to adjust the selected channel of the tunable filter.Type: ApplicationFiled: May 30, 2002Publication date: December 4, 2003Inventors: Robert Blomquist, George Boudoughian, Louay Eldada, Michael J. McFarland, Lawrence W. Shacklette
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Publication number: 20030207215Abstract: The invention provides organic optical waveguide devices which employ perfluoropolymeric materials having low optical loss and low birefringence. An optical element has a substrate; a patterned, light transmissive perfluoropolymer core composition; and a light reflecting cladding composition on the pattern of the core. Writing of high-efficiency waveguide gratings is also disclosed.Type: ApplicationFiled: January 8, 2003Publication date: November 6, 2003Inventors: Baopei Xu, Louay Eldada, Robert A. Norwood, Robert Blomquist
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Publication number: 20030181633Abstract: The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to the aromatic or heteroaromatic moiety through an —O— or —S— linkage; and at least one ethylenically unsaturated moiety, each ethylenically unsaturated moiety being linked to one of the fluorinated alkylene, arylene or polyether moieties. The present invention also provides an energy curable composition including a compound having an isocyanurate moiety, three fluorinated alkylene, arylene, or polyether moieties linked to the isocyanurate moiety at the nitrogens of the isocyanurate, and at least one ethylenically unsaturated moiety linked to one of the fluorinated alkylene, arylene, or polyether moieties. The present invention further provides polymeric materials and optical devices made using these compositions.Type: ApplicationFiled: September 23, 2002Publication date: September 25, 2003Inventors: Robert Blomquist, Jian Ming S. Deng
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Publication number: 20030176629Abstract: The present invention provides an energy curable composition including a compound having an aromatic or heteroaromatic moiety; at least two fluorinated alkylene, arylene or polyether moieties, each fluorinated alkylene, arylene or polyether moiety being linked to the aromatic or heteroaromatic moiety through an ether or thioether; and at least one ethylenically unsaturated moiety, each ethylenically unsaturated moiety being linked to one of the fluorinated alkylene, arylene or polyether moieties. The present invention also provides an energy curable composition including a compound having an isocyanurate moiety, three fluorinated alkylene, arylene, or polyether moieties linked to the isocyanurate moiety at the nitrogens of the isocyanurate, and at least one ethylenically unsaturated moiety linked to one of the fluorinated alkylene, arylene, or polyether moieties. The present invention further provides polymeric materials and optical devices made using these compositions.Type: ApplicationFiled: February 4, 2002Publication date: September 18, 2003Inventors: Robert Blomquist, Jian Ming S. Deng
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Publication number: 20030108326Abstract: A fluorinated polymerizable compound useful for fabricating planar optical devices includes at least one fluorinated alkylene or alkylene ether moiety and at least two terminal acrylate moieties, each terminal acrylate moiety being connected to one of the fluorinated alkylene or fluorinated alklene ether moieties by an ester linking group. The fluorinated polymerizable compounds, or macromers, of this invention are useful for forming optical components exhibiting a refractive index comparable to that of glass fiber waveguides, while also exhibiting very low absorption losses. Polymerizable compositions suitable for preparing optical components can be prepared by combining the macromers of the invention with a photoinitiator. Conventional optical monomers may also be employed, if desired.Type: ApplicationFiled: October 29, 2002Publication date: June 12, 2003Inventors: Robert Blomquist, Jian Ming S. Deng, Lawrence W. Shacklette, MacRae Maxfield
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Patent number: 6555288Abstract: The invention provides organic optical waveguide devices which employ perfluoropolymeric materials having low optical loss and low birefringence. An optical element has a substrate; a patterned, light transmissive perfluoropolymer core composition; and a light reflecting cladding composition on the pattern of the core. Writing of high-efficiency waveguide gratings is also disclosed.Type: GrantFiled: December 20, 2000Date of Patent: April 29, 2003Assignee: Corning IncorporatedInventors: Baopei Xu, Louay Eidada, Robert A. Norwood, Robert Blomquist
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Publication number: 20030053774Abstract: Provided are polymeric or polymeric and glass optical fiber devices which have a tunable wavelength response in a polymeric fiber Bragg grating. An optical fiber is formed having a tubular cladding of a first polymeric or glass composition having a first index of refraction, wherein the cladding has a longitudinal axis. A core of a second polymeric composition is within the cladding and extends along and around the longitudinal axis. The second polymeric composition has a second index of refraction which is greater than the index of refraction of the first polymeric composition. A Bragg grating having a plurality of spaced grating elements is formed in the core. The arrangement then has a means, such as a heater, for changing the spacing between the grating elements.Type: ApplicationFiled: September 14, 2001Publication date: March 20, 2003Inventors: Robert Blomquist, Robert Norwood
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Patent number: 6496637Abstract: A fluorinated polymerizable compound useful for fabricating planar optical devices includes at least one fluorinated alkylene or alkylene ether moiety and at least two terminal acrylate moieties, each terminal acrylate moiety being connected to one of the fluorinated alkylene or fluorinated alklene ether moieties by an ester linking group. The fluorinated polymerizable compounds, or macromers, of this invention are useful for forming optical components exhibiting a refractive index comparable to that of glass fiber waveguides, while also exhibiting very low absorption losses. Polymerizable compositions suitable for preparing optical components can be prepared by combining the macromers of the invention with a photoinitiator. Conventional optical monomers may also be employed, if desired.Type: GrantFiled: December 21, 2000Date of Patent: December 17, 2002Assignee: Corning IncorporatedInventors: Robert Blomquist, Jian Ming S. Deng, Lawrence W. Shacklette, MacRae Maxfield
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Publication number: 20020122647Abstract: A fluorinated polymerizable compound useful for fabricating planar optical devices includes at least one fluorinated alkylene or alkylene ether moiety and at least two terminal acrylate moieties, each terminal acrylate moiety being connected to one of the fluorinated alkylene or fluorinated alklene ether moieties by an ester linking group. The fluorinated polymerizable compounds, or macromers, of this invention are useful for forming optical components exhibiting a refractive index comparable to that of glass fiber waveguides, while also exhibiting very low absorption losses. Polymerizable compositions suitable for preparing optical components can be prepared by combining the macromers of the invention with a photoinitiator. Conventional optical monomers may also be employed, if desired.Type: ApplicationFiled: December 21, 2000Publication date: September 5, 2002Inventors: Robert Blomquist, Jian Ming S. Deng, Lawrence W. Schacklette, MacRae Maxfield