Patents by Inventor Timothy J. Lindquist
Timothy J. Lindquist 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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Publication number: 20230311120Abstract: An optical system for examining an optical characteristic of a test material at at least a first wavelength includes an elongated hollow structure elongated along a length thereof and having one or more walls extending along the length of the hollow structure and defining an elongated chamber therebetween configured to receive the test material. The elongated hollow structure includes at least a first light opening, such that for the at least the first wavelength, the one or more walls have an optical reflectance of greater than about 50% for incident angles of up to at least 40 degrees, and at least one of the at least the first light opening has an optical transmittance of greater than about 50% for at least one incident angle.Type: ApplicationFiled: March 20, 2023Publication date: October 5, 2023Inventors: Bharat R. Acharya, Kurt J. Halverson, Robert M. Biegler, Timothy J. Lindquist, John Allen Wheatley, James A. Phipps, Joshua J. Loga, Brett J. Sitter
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Publication number: 20230273119Abstract: An optical well is configured to receive a test sample for examining an optical characteristic of the sample at a first wavelength in a predetermined wavelength range. The optical well includes a wall having a bottom wall portion and a sidewall portion defining a chamber for receiving the test sample, and an optical film formed into a shape so that a portion of the sidewall portion includes a first portion of the optical film, and a portion of the bottom wall portion includes a second portion of the optical film. For a normally incident light, the microlayers in each of the first and second portions have an average optical reflectance of greater than about 80% in the predetermined wavelength range. The forming results in the plurality of microlayers of the integral formed optical film having a thinnest portion and a thickest portion having a thickness difference of at least 30%.Type: ApplicationFiled: February 17, 2023Publication date: August 31, 2023Inventors: Bharat R. Acharya, Raj Rajagopal, Gregory W. Sitton, Benjamin G. Sonnek, Robert M. Biegler, Gilles J. Benoit, Timothy J. Lindquist, John A. Wheatley, Kristal L. Schutta, James A. Phipps
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Publication number: 20230077437Abstract: This disclosure describes multilayer polymer films that are configured so that successive constituent layer packets may be delaminated in continuous sheet forms from the remaining film. This disclosure further describes compositions, materials, and methods for minimizing the likelihood of removing multiple layer packets together including by increasing the peel force between layer packets. In some embodiments, that the peel force becomes successively greater from the interface between the first layer packet and the second layer packet to the interface between the next to last ((n?1)th layer packet) and the last (nth layer packet).Type: ApplicationFiled: February 26, 2021Publication date: March 16, 2023Inventors: Derek W. Patzman, Stephen A. Johnson, William T. Fay, Timothy J. Lindquist, Onur Sinan Yordem, Nathaniel I. Lehn
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Publication number: 20220234276Abstract: A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.Type: ApplicationFiled: April 19, 2022Publication date: July 28, 2022Inventors: John P. Purcell, James B. Svacha, Stephen A. Johnson, Timothy J. Lindquist, Grant F. Tiefenbruck, Chad R. Wold
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Publication number: 20220187606Abstract: An optical system (200) that allows a viewer (10) to simultaneously see images created by an electronic display (20) as well as real world objects (30b) includes a reflective polarizer (41) as an image combiner for head-mounted displays and an absorptive polarizer (42) deployed in the same combiner to reduce glare by minimizing ambient reflections from the reflective polarizer. To prevent the absorptive polarizer (42) from blocking linearly polarized light sources from being transmitted through the combiner, a weak absorptive polarizer is provided to allow transmission of polarized sources while still minimizing glare.Type: ApplicationFiled: April 28, 2020Publication date: June 16, 2022Inventors: Timothy L. Wong, Timothy J. Lindquist
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Publication number: 20210237336Abstract: A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.Type: ApplicationFiled: December 28, 2016Publication date: August 5, 2021Inventors: JOHN P. PURCELL, JAMES B. SVACHA, STEPHEN A. JOHNSON, TIMOTHY J. LINDQUIST, GRANT F. TIEFENBRUCK, CHAD R. WOLD
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Patent number: 10710343Abstract: Multilayered polymer films are configured so that successive constituent layer packets can be delaminated in continuous sheet form from the remaining film. The new films are compatible with known coextrusion manufacturing techniques, and can also be made without the use of adhesive layers between layer packets that are tailored to be individually peelable from the remainder of the film. Instead, combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined in such a way that delamination of the film is likely to occur along a plurality of delamination surfaces corresponding to interfaces between particular pairs of layers for which the peel strength is reduced relative to the peel strength at other layer interfaces within the film. The absence of an adhesive between peelable layer packets results in the delamination being irreversible.Type: GrantFiled: April 22, 2019Date of Patent: July 14, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Stephen A. Johnson, Onur S. Yordem, Timothy J. Lindquist, Terence D. Neavin
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Patent number: 10696028Abstract: Multilayered polymer films are configured so that successive constituent layer packets can be delaminated in continuous sheet form from the remaining film. The films are compatible with known coextrusion manufacturing techniques, and can be made without adhesive layers between layer packets that are tailored to be individually peelable from the film. Instead, combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined such that irreversible delamination of the film is likely to occur at interfaces between layer packet pairs. Some polymer layers, including at least one embedded layer, may include an ultraviolet (UV) light stabilizer such as a UV absorber, antioxidant, or hindered amine light stabilizer (HALS), and these layers may be positioned at the front of each layer packet. After the UV-stabilized layer of one packet has been used, the packet can be peeled away to expose a new UV-stabilized layer of the next layer packet.Type: GrantFiled: April 24, 2019Date of Patent: June 30, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Stephen A. Johnson, Timothy J. Lindquist, Terence D. Neavin, Onur S. Yordem
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Patent number: 10682830Abstract: Multilayered polymer films are configured so that successive constituent layer packets can be delaminated in continuous sheet form from the remaining film. The films are compatible with known coextrusion manufacturing techniques, and can be made without adhesive layers between layer packets that are tailored to be individually peelable from the remainder of the film. Instead, combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined such that irreversible delamination of the film is likely to occur at interfaces between layer packets pairs. Some of the polymer layers, including at least one embedded layer, comprise an antimicrobial agent, and these layers may be positioned at the front of each layer packet. After the antimicrobial layer of one layer packet has been used, the packet can be peeled away to expose a pristine antimicrobial layer of the next layer packet. The antimicrobial agent may be organic.Type: GrantFiled: June 2, 2014Date of Patent: June 16, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Steven P. Swanson, Semra Colak Atan, Onur S. Yordem, Stephen A. Johnson, Timothy J. Lindquist, Terence D. Neavin, Matthew T. Scholz
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Publication number: 20200156355Abstract: Multi-layer films, and processes to make the films, that enable the delivery of a substrate featuring a peelable thin layer of low haze, amorphous, isotropic film with the desired properties of high modulus, high usage temperature, UV blockage, and toughness The films are made using a co-extrusion, co-orientation and annealing process to enable the delivery of a thin isotropic, UV blocking layer on top of a release layer and support substrate. These film constructions can be kept together during additional processing steps such as coating and converting. The release and dimensionally stable substrate layer can be easily removed once processing steps are completed.Type: ApplicationFiled: August 8, 2018Publication date: May 21, 2020Inventors: Stephen A. Johnson, Derek W. Patzman, Richard Yufeng Liu, Victor Ho, Timothy J. Hebrink, Kevin T. Huseby, John F. VanDerlofske, III, John P. Purcell, William T. Fay, James B. Svacha, Richard J. Thompson, Timothy J. Lindquist, Kristopher J. Derks
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Patent number: 10654251Abstract: Barrier assemblies including ultrathin barrier laminates and methods of making the barrier assemblies are provided. A barrier assembly includes a thermoplastic polymer skin layer having opposite first and second major surfaces, and a barrier stack coated on the first major surface of the thermoplastic polymer skin layer to form an integral protective layer having a thickness no greater than about 0.5 mil (about 12.7 microns). The removable carrier film has a major surface releasably attached to the second major surface of the thermoplastic polymer skin layer. In some cases, the removal of the carrier film results in ultrathin barrier laminates.Type: GrantFiled: June 24, 2016Date of Patent: May 19, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: David J. Rowe, Ta-Hua Yu, Timothy J. Lindquist, Mark A. Roehrig, Christopher S. Lyons, Stephen P. Maki, Scott J. Jones, Kevin D. Hagen, Andrew M. Mevissen, Kenneth L. Looney, Stephen A. Johnson, Terence D. Neavin, Joseph C. Spagnola, Fred B. McCormick
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Publication number: 20190248118Abstract: Multilayered polymer films are configured so that successive constituent layer packets can be delaminated in continuous sheet form from the remaining film. The films are compatible with known coextrusion manufacturing techniques, and can be made without adhesive layers between layer packets that are tailored to be individually peelable from the film. Instead, combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined such that irreversible delamination of the film is likely to occur at interfaces between layer packet pairs. Some polymer layers, including at least one embedded layer, may include an ultraviolet (UV) light stabilizer such as a UV absorber, antioxidant, or hindered amine light stabilizer (HALS), and these layers may be positioned at the front of each layer packet. After the UV-stabilized layer of one packet has been used, the packet can be peeled away to expose a new UV-stabilized layer of the next layer packet.Type: ApplicationFiled: April 24, 2019Publication date: August 15, 2019Inventors: Stephen A. Johnson, Timothy J. Lindquist, Terence D. Neavin, Onur S. Yordem
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Publication number: 20190248117Abstract: Multilayered polymer films are configured so that successive constituent layer packets can be delaminated in continuous sheet form from the remaining film. The new films are compatible with known coextrusion manufacturing techniques, and can also be made without the use of adhesive layers between layer packets that are tailored to be individually peelable from the remainder of the film. Instead, combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined in such a way that delamination of the film is likely to occur along a plurality of delamination surfaces corresponding to interfaces between particular pairs of layers for which the peel strength is reduced relative to the peel strength at other layer interfaces within the film. The absence of an adhesive between peelable layer packets results in the delamination being irreversible.Type: ApplicationFiled: April 22, 2019Publication date: August 15, 2019Inventors: Stephen A. Johnson, Onur S. Yordem, Timothy J. Lindquist, Terence D. Neavin
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Publication number: 20180370200Abstract: Barrier assemblies including ultrathin barrier laminates and methods of making the barrier assemblies are provided. A barrier assembly includes a thermoplastic polymer skin layer having opposite first and second major surfaces, and a barrier stack coated on the first major surface of the thermoplastic polymer skin layer to form an integral protective layer having a thickness no greater than about 0.5 mil (about 12.7 microns). The removable carrier film has a major surface releasably attached to the second major surface of the thermoplastic polymer skin layer. In some cases, the removal of the carrier film results in ultrathin barrier laminates.Type: ApplicationFiled: June 24, 2016Publication date: December 27, 2018Inventors: David J. Rowe, Ta-Hua Yu, Timothy J. Lindquist, Mark A. Roehrig, Christopher S. Lyons, Stephen P. Maki, Scott J. Jones, Kevin D. Hagen, Andrew M. Mevissen, Kenneth L. Looney, Stephen A. Johnson, Terence D. Neavin, Joseph C. Spagnola, Fred B. McCormick
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Patent number: 9840794Abstract: Nonwoven fibrous webs include elastic filaments such that the web as a whole exhibits elastic properties when stretched. The webs include a multiplicity of nonwoven fibers and at least one elastic filament entangled with at least a portion of the nonwoven fibers to form a self-supporting, cohesive, elastic nonwoven fibrous web. Methods of making such elastic nonwoven fibrous webs using hydro-entanglement, and uses of such webs to form articles are also described.Type: GrantFiled: December 16, 2009Date of Patent: December 12, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPNAYInventors: David L. Seidel, Troy K. Ista, Timothy J. Lindquist, Scott J. Tuman
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Patent number: 9415561Abstract: Multilayered polymer films are configured so that successive layer packets can be delaminated in continuous sheet form from the remaining film. The films are compatible with known coextrusion manufacturing techniques, and can be made without adhesive layers between layer packets. The layer packets are individually peelable from the remainder of the film. Combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined such that irreversible delamination of the film is likely to occur at interfaces between layer packet pairs. The films are post-formed, e.g. using heat and pressure, to deform the film from an initial flat or limp condition into a contoured shape that is self-supporting. The contoured shape may comprise regions of simple and/or complex curvature. Despite the permanent contoured shape, individual packets can still be successively peeled away to expose a fresh surface of the next layer packet, having the same contoured shape.Type: GrantFiled: December 30, 2013Date of Patent: August 16, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Timothy J. Lindquist, Stephen A. Johnson, Onur Sinan Yordem, Myron K. Jordan
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Publication number: 20160089858Abstract: Multilayered polymer films are configured so that successive constituent layer packets can be delaminated in continuous sheet form from the remaining film. The films are compatible with known coextrusion manufacturing techniques, and can be made without adhesive layers between layer packets that are tailored to be individually peelable from the remainder of the film. Instead, combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined such that irreversible delamination of the film is likely to occur at interfaces between layer packets pairs. Some of the polymer layers, including at least one embedded layer, comprise an antimicrobial agent, and these layers may be positioned at the front of each layer packet. After the antimicrobial layer of one layer packet has been used, the packet can be peeled away to expose a pristine antimicrobial layer of the next layer packet. The antimicrobial agent may be organic.Type: ApplicationFiled: June 2, 2014Publication date: March 31, 2016Inventors: Steven P. Swanson, Semra Colak Atan, Onur S. Yordem, Stephen A. Johnson, Timothy J. Lindquist, Terence D. Neavin, Matthew T. Scholz
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Publication number: 20150202847Abstract: Multilayered polymer films are configured so that successive constituent layer packets can be delaminated in continuous sheet form from the remaining film. The films are compatible with known coextrusion manufacturing techniques, and can be made without adhesive layers between layer packets that are tailored to be individually peelable from the film. Instead, combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined such that irreversible delamination of the film is likely to occur at interfaces between layer packet pairs. Some polymer layers, including at least one embedded layer, may include an ultraviolet (UV) light stabilizer such as a UV absorber, antioxidant, or hindered amine light stabilizer (HALS), and these layers may be positioned at the front of each layer packet. After the UV-stabilized layer of one packet has been used, the packet can be peeled away to expose a new UV-stabilized layer of the next layer packet.Type: ApplicationFiled: January 17, 2014Publication date: July 23, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Stephen A. Johnson, Timothy J. Lindquist, Terence D. Neavin, Onur S. Yordem
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Publication number: 20150183178Abstract: Multilayered polymer films are configured so that successive layer packets can be delaminated in continuous sheet form from the remaining film. The films are compatible with known coextrusion manufacturing techniques, and can be made without adhesive layers between layer packets. The layer packets are individually peelable from the remainder of the film. Combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined such that irreversible delamination of the film is likely to occur at interfaces between layer packet pairs. The films are post-formed, e.g. using heat and pressure, to deform the film from an initial flat or limp condition into a contoured shape that is self-supporting. The contoured shape may comprise regions of simple and/or complex curvature. Despite the permanent contoured shape, individual packets can still be successively peeled away to expose a fresh surface of the next layer packet, having the same contoured shape.Type: ApplicationFiled: December 30, 2013Publication date: July 2, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Timothy J. Lindquist, Stephen A. Johnson, Onur Sinan Yordem, Myron K. Jordan
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Publication number: 20140065397Abstract: Multilayered polymer films are configured so that successive constituent layer packets can be delaminated in continuous sheet form from the remaining film. The new films are compatible with known coextrusion manufacturing techniques, and can also be made without the use of adhesive layers between layer packets that are tailored to be individually peelable from the remainder of the film. Instead, combinations of polymer compositions are used to allow non-adhesive polymer layers to be combined in such a way that delamination of the film is likely to occur along a plurality of delamination surfaces corresponding to interfaces between particular pairs of layers for which the peel strength is reduced relative to the peel strength at other layer interfaces within the film. The absence of an adhesive between peelable layer packets results in the delamination being irreversible.Type: ApplicationFiled: August 28, 2012Publication date: March 6, 2014Inventors: Stephen A. Johnson, Onur S. Yordem, Timothy J. Lindquist, Terence D. Neavin