Patents by Inventor Richard L. Severance
Richard L. Severance 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: 9127101Abstract: Presently described are curable compositions comprising a mixture of at least one (e.g. free-radically) polymerizable ionic liquid and at least one other ethylenically unsaturated monomer, oligomer, or polymer. The polymerizable ionic liquid is characterized as having an air to nitrogen curing exotherm ratio of at least 0.70. Also described are articles and methods of making articles from such curable compositions. A monofunctional polymerizable ionic liquid is also described comprising a non-polymerizable substituted imidazolium cationic group and a polymerizable sulfonate anion.Type: GrantFiled: July 15, 2014Date of Patent: September 8, 2015Assignee: 3M Innovative Properties CompanyInventors: Yizhong Wang, Joel D. Oxman, Larry R. Krepski, Peiwang Zhu, Kevin M. Lewandowski, Brian N. Holmes, Richard L. Severance, Joseph D. Rule, Thomas P. Klun
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Publication number: 20140322550Abstract: Presently described are curable compositions comprising a mixture of at least one (e.g. free-radically) polymerizable ionic liquid and at least one other ethylenically unsaturated monomer, oligomer, or polymer. The polymerizable ionic liquid is characterized as having an air to nitrogen curing exotherm ratio of at least 0.70. Also described are articles and methods of making articles from such curable compositions. A monofunctional polymerizable ionic liquid is also described comprising a non-polymerizable substituted imidazolium cationic group and a polymerizable sulfonate anion.Type: ApplicationFiled: July 15, 2014Publication date: October 30, 2014Inventors: YIZHONG WANG, JOEL D. OXMAN, LARRY R. KREPSKI, PEIWANG ZHU, KEVIN M. LEWANDOWSKI, BRIAN M. HOLMES, RICHARD L. SEVERANCE, JOSEPH D. RULE, THOMAS P. KLUN
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Patent number: 8816029Abstract: Presently described are curable compositions comprising a mixture of at least one (e.g. free-radically) polymerizable ionic liquid and at least one other ethylenically unsaturated monomer, oligomer, or polymer. The polymerizable ionic liquid is characterized as having an air to nitrogen curing exotherm ratio of at least 0.70. Also described are articles and methods of making articles from such curable compositions. A monofunctional polymerizable ionic liquid is also described comprising a non-polymerizable substituted imidazolium cationic group and a polymerizable sulfonate anion.Type: GrantFiled: August 26, 2010Date of Patent: August 26, 2014Assignee: 3M Innovative Properties CompanyInventors: Yizhong Wang, Joel D. Oxman, Larry R. Krepski, Peiwang Zhu, Kevin M. Lewandowski, Brian N. Holmes, Richard L. Severance, Joseph D. Rule, Thomas P. Klun
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Publication number: 20120101184Abstract: Presently described are curable compositions comprising a mixture of at least one (e.g. free-radically) polymerizable ionic liquid and at least one other ethylenically unsaturated monomer, oligomer, or polymer. The polymerizable ionic liquid is characterized as having an air to nitrogen curing exotherm ratio of at least 0.70. Also described are articles and methods of making articles from such curable compositions. A monofunctional polymerizable ionic liquid is also described comprising a non-polymerizable substituted imidazolium cationic group and a polymerizable sulfonate anion.Type: ApplicationFiled: August 26, 2010Publication date: April 26, 2012Inventors: Yizhong Wang, Joel D. Oxman, Larry R. Krepski, Peiwang Zhu, Kevin M. Lewandowski, Brian N. Holmes, Richard L. Severance, Joseph D. Rule, Thomas P. Klun
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Patent number: 7943681Abstract: Low viscosity, radiation curable fluid formulations that can be used advantageously as radiation curable, inks. The formulations are easily prepared for use in ink jet systems. The viscosity of the compositions is low enough so that conventional solvent is not required in order to satisfy the requisite low ink jet viscosity specifications. After curing, the compositions form durable, weatherable, abrasion resistant, printed images on a wide variety of porous and nonporous substrates. The formulations are very suitable for outdoor printing applications, especially for printing outdoor graphics onto a variety of surfaces, including vinyl or other polymer films commonly used for signage, retroreflective signage or other retroreflective items.Type: GrantFiled: August 5, 2008Date of Patent: May 17, 2011Assignee: 3M Innovative Properties CompanyInventors: Jennifer L. Lee, Ronald K. Thery, Caroline M. Ylitalo, Richard L. Severance, Dong Wu, Bruce A. Nerad, Verna J. LeMire, James G. Carlson, William J. Hunt
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Publication number: 20090004478Abstract: Flexible hardcoat compositions and protective films are described comprising the reaction product one or more urethane (meth)acrylate oligomers; at least one monomer comprising at least three (meth)acrylate groups; and optionally inorganic nanoparticles. The cured hardcoat composition is preferably sufficiently flexible such that a 5 micron film can be bent around a 2 mm mandrel without cracking.Type: ApplicationFiled: June 11, 2008Publication date: January 1, 2009Inventors: JOHN P. BAETZOLD, Richard J. Pokorny, Richard L. Severance, Stephen A. Johnson, Steven J. McMan, John J. Stradinger
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Publication number: 20080287563Abstract: Low viscosity, radiation curable fluid formulations that can be used advantageously as radiation curable, inks. The formulations are easily prepared for use in ink jet systems. The viscosity of the compositions is low enough so that conventional solvent is not required in order to satisfy the requisite low ink jet viscosity specifications. After curing, the compositions form durable, weatherable, abrasion resistant, printed images on a wide variety of porous and nonporous substrates. The formulations are very suitable for outdoor printing applications, especially for printing outdoor graphics onto a variety of surfaces, including vinyl or other polymer films commonly used for signage, retroreflective signage or other retroreflective items.Type: ApplicationFiled: August 5, 2008Publication date: November 20, 2008Inventors: Jennifer L. Lee, Ronald K. Thery, Caroline M. Ylitalo, Richard L. Severance, Dong Wu, Bruce A. Nerad, Verna J. LeMire, James G. Carlson, William J. Hunt
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Patent number: 7423072Abstract: Low viscosity, radiation curable fluid formulations that can be used advantageously as radiation curable, inks. The formulations are easily prepared for use in ink jet systems. The viscosity of the compositions is low enough so that conventional solvent is not required in order to satisfy the requisite low ink jet viscosity specifications. After curing, the compositions form durable, weatherable, abrasion resistant, printed images on a wide variety of porous and nonporous substrates. The formulations are very suitable for outdoor printing applications, especially for printing outdoor graphics onto a variety of surfaces, including vinyl or other polymer films commonly used for signage, retroreflective signage or other retroreflective items.Type: GrantFiled: November 7, 2001Date of Patent: September 9, 2008Assignee: 3M Innovative Properties CompanyInventors: Jennifer L. Lee, Ronald K. Thery, Caroline M. Ylitalo, Richard L. Severance, Dong Wu, Bruce A. Nerad, Verna J. LeMire, James G. Carlson, William J. Hunt
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Publication number: 20080175995Abstract: A system for printing adhesives immerses a wire in a reservoir of adhesive for a period of time sufficient to allow the wire to be coated with the adhesive. The system places the coated wire in close proximity to a designated medium onto which the adhesive will be applied and directs a stream of gas to contact the coated wire and cause at least some of the adhesive on the wire to be deposited onto the designated medium. Two-part ink systems include a fluid and a second material that is microencapsulated in the fluid, a second material that exists as a microemulsion in the fluid, and two fluids that are mixed or combined upon jetting and that react on the print medium.Type: ApplicationFiled: January 22, 2008Publication date: July 24, 2008Inventors: Scott A. Boyd, Jennifer L. Lee, Richard L. Severance, Billy L. Weaver
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Patent number: 7140711Abstract: Inkjet printing apparatus for use with radiation curable ink includes a sensor for sensing the amount of radiation emitted by a source of radiation. A controller is connected to the sensor and is operable to vary the amount of radiation emitted by the radiation source in accordance with a signal received from the sensor. A drive mechanism moves the source of radiation to a location laterally offset from the substrate where the sensor is positioned.Type: GrantFiled: July 21, 2003Date of Patent: November 28, 2006Assignee: 3M Innovative Properties CompanyInventors: Bruce A. Nerad, Robin E. Wright, Richard L. Severance, William J. Hunt, Caroline M. Ylitalo
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Patent number: 7025453Abstract: The present invention relates to an imaged article including a substrate having a primed surface layer. The primed surface layer is included of a base polymer having a solubility parameter, molecular weight (Mw) and glass transition temperature within a specified range. The presence of the primer improves the overall image quality by improving at least one property including ink uptake, dot gain, color density and/or ink adhesion. Preferred primer compositions are soluble at least in part in the ink composition resulting in an increase in ink layer thickness that further improves the durability and/or day/night color balance. A variety of substrates may be primed including various sheeting for traffic control signage and commercial graphic films for advertising and promotional displays.Type: GrantFiled: January 21, 2005Date of Patent: April 11, 2006Assignee: 3M Innovative Properties CompanyInventors: Caroline M. Ylitalo, Bret W. Ludwig, Jennifer L. Lee, Richard L. Severance, Richard F. Theissen, Jeffrey O. Emslander
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Patent number: 6896944Abstract: The present invention relates to an imaged article comprising a substrate having a primed surface layer. The primed surface layer is comprised of a base polymer having a solubility parameter, molecular weight (Mw) and glass transition temperature within a specified range. The presence of the primer improves the overall image quality by improving at least one property including ink uptake, dot gain, color density and/or ink adhesion. Preferred primer compositions are soluble at least in part in the ink composition resulting in an increase in ink layer thickness that further improves the durability and/or day/night color balance. A variety of substrates may be primed including various sheeting for traffic control signage and commercial graphic films for advertising and promotional displays.Type: GrantFiled: June 29, 2001Date of Patent: May 24, 2005Assignee: 3M Innovative Properties CompanyInventors: Caroline M. Ylitalo, Bret W. Ludwig, David J. Kinning, Ernest M. Rinehart, Jennifer L. Lee, Oh Sang Woo, Richard L. Severance, Richard F. Theissen
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Patent number: 6881458Abstract: The invention relates to articles comprising a substrate comprising an ink receptive layer and an ink-jet printed image as well as methods of ink jet printing. The ink receptive layer comprises certain urethane-containing polymers and blends.Type: GrantFiled: December 23, 2002Date of Patent: April 19, 2005Assignee: 3M Innovative Properties CompanyInventors: Bret W. Ludwig, Jeffrey O. Emslander, Caroline M. Ylitalo, Oh Sang Woo, Jennifer L. Lee, Richard L. Severance
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Patent number: 6846075Abstract: The present invention relates to an imaged article comprising a substrate having a primed surface layer. The primed surface layer is comprised of a base polymer having a solubility parameter, molecular weight (Mw) and glass transition temperature within a specified range. The presence of the primer improves the overall image quality by improving at least one property including ink uptake, dot gain, color density and/or ink adhesion. Preferred primer compositions are soluble at least in part in the ink composition resulting in an increase in ink layer thickness that further improves the durability and/or day/night color balance. A variety of substrates may be primed including various sheeting for traffic control signage and commercial graphic films for advertising and promotional displays.Type: GrantFiled: June 3, 2002Date of Patent: January 25, 2005Assignee: 3M Innovative Properties CompanyInventors: Caroline M. Ylitalo, Bret W. Ludwig, David J. Kinning, Ernest M. Rinehart, Jennifer L. Lee, Oh Sang Woo, Richard L. Severance, Richard F. Theissen
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Publication number: 20040258856Abstract: The present invention relates to an imaged article comprising a substrate having a primed surface layer. The primed surface layer is comprised of a base polymer having a solubility parameter, molecular weight (Mw) and glass transition temperature within a specified range. The presence of the primer improves the overall image quality by improving at least one property including ink uptake, dot gain, color density and/or ink adhesion. Preferred primer compositions are soluble at least in part in the ink composition resulting in an increase in ink layer thickness that further improves the durability and/or day/night color balance. A variety of substrates may be primed including various sheeting for traffic control signage and commercial graphic films for advertising and promotional displays.Type: ApplicationFiled: July 13, 2004Publication date: December 23, 2004Applicant: 3M Innovative Properties CompanyInventors: Caroline M. Ylitalo, Bret W. Ludwig, David J. Kinning, Ernest M. Rinehart, Jennifer L. Lee, Oh Sang Woo, Richard L. Severance, Richard F. Theissen
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Patent number: 6730714Abstract: Radiation curable inks with moderate amounts of solvent with low surface tension provide unique processability characteristics that allow ink jetted features to be formed and cured with excellent flow, adhesion, dot gain, compatibility, weatherability, and curing characteristics. In a representative printing method, an ink jettable ink composition is provided that includes one or more oligo/resins, a radiation curable, reactive diluent having a surface tension and 1 to 15 weight percent of a solvent component comprising a solvent having a surface tension. The solvent surface tension is no more than about, and preferably at least 2 dynes/cm less than, the surface tension of the reactive diluent. The ink composition is ink jetted onto the substrate to form an ink jetted feature.Type: GrantFiled: November 13, 2002Date of Patent: May 4, 2004Assignee: 3M Innovative Properties CompanyInventors: Caroline M. Ylitalo, Richard L. Severance, Ronald K. Thery
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Patent number: 6720042Abstract: The present invention relates to primed substrates comprising radiation cured ink jetted images and methods of ink jet printing radiation curable inks that employ applying a primer. The imaged articles are durable for outdoor usage. A variety of polymeric sheets may be primed including various sheeting for signage and commercial graphic films for advertising and promotional displays.Type: GrantFiled: April 18, 2001Date of Patent: April 13, 2004Assignee: 3M Innovative Properties CompanyInventors: Caroline M. Ylitalo, Jennifer L. Lee, Richard L. Severance, Oh Sang Woo, Eugene P. Janulis
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Publication number: 20040028836Abstract: Methods of making weatherable polymer films and retroreflective articles that are coated with UV-light cured compositions are disclosed.Type: ApplicationFiled: August 2, 2002Publication date: February 12, 2004Inventors: William J. Hunt, Warren D. Ketola, Lee A. Pavelka, Richard L. Severance
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Publication number: 20040029044Abstract: A photocurable composition comprises: at least one free-radically polymerizable material, at least one benzophenone derivative, at least one acylphosphine oxide, and at least one maleimide having the formula: 1Type: ApplicationFiled: August 8, 2002Publication date: February 12, 2004Applicant: 3M Innovative Properties CompanyInventors: Richard L. Severance, Caroline M. Ylitalo, Peter T. Elliott
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Publication number: 20030224150Abstract: The invention relates to articles comprising a substrate comprising an ink receptive layer and an ink-jet printed image as well as methods of ink jet printing. The ink receptive layer comprises certain urethane-containing polymers and blends.Type: ApplicationFiled: December 23, 2002Publication date: December 4, 2003Inventors: Bret W. Ludwig, Jeffrey O. Emslander, Caroline M. Ylitalo, Oh Sang Woo, Jennifer L. Lee, Richard L. Severance