Patents by Inventor Diane North
Diane North 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: 11752729Abstract: A stretchable reflective color-shifting film comprises a stretchable transparent polymer layer; a semi-transmissive metal layer; a transparent spacer layer; a reflective metal layer; an adhesive layer; and a stretchable base film layer. When the film body is stretched by 25%, the peak total reflectance stretched is at 80% of the peak total reflectance when the film body is unstretched according to the Total Reflectivity Test.Type: GrantFiled: July 15, 2019Date of Patent: September 12, 2023Assignee: 3M Innovative Properties CompanyInventors: Huiwen Tai, Joan M. Frankel, Stephen P. Maki, Diane North, Robert R. Owings
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Publication number: 20220169846Abstract: An article is described comprising a first film layer comprising polylactic acid polymer (semicrystalline polylactic acid polymer; amorphous polylactic acid polymer; or a mixture thereof); a second (e.g. polyvinyl acetate) polymer having a Tg of at least 25° C.; plasticizer. In some embodiment, the film layer further comprises inorganic pigment and/or hydrolysis stabilizer. In other embodiments, the film has a net melting endotherm, ?Hnm1, of less than 10 J/g. Also described are methods of making a graphic film.Type: ApplicationFiled: March 25, 2020Publication date: June 2, 2022Inventors: Ning Zhou, Diane North, Matthew A. Jast
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Publication number: 20210308984Abstract: A stretchable reflective color-shifting film comprises a stretchable transparent polymer layer; a semi-transmissive metal layer; a transparent spacer layer; a reflective metal layer; an adhesive layer; and a stretchable base film layer. When the film body is stretched by 25%, the peak total reflectance stretched is at 80% of the peak total reflectance when the film body is unstretched according to the Total Reflectivity Test.Type: ApplicationFiled: July 15, 2019Publication date: October 7, 2021Inventors: Huiwen Tai, Joan M. Frankel, Stephen P. Maki, Diane North, Robert R. Owings
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Patent number: 11110689Abstract: A composition that includes a blend of a pressure sensitive adhesive and an ultraviolet light-absorbing oligomer. The oligomer has a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit represented by formula in which R1 is hydrogen or methyl, and R2 is alkyl having from 4 to 20 carbon atom. Articles including the composition are disclosed. For example, an assembly including a barrier film and the composition is also disclosed.Type: GrantFiled: June 25, 2015Date of Patent: September 7, 2021Assignee: 3M Innovative Properties CompanyInventors: David B. Olson, Patricia M. Savu, Diane North, Jordan C. DuCharme
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Publication number: 20200217989Abstract: A multilayer optical film includes alternating layers of first and second optical layers; the first optical layer comprising a first polyester, wherein the first polyester comprises first dicarboxylate monomers and first diol monomers, and from about 0.25 to less than 10 mol % of the first dicarboxylate monomers have pendant ionic groups; the second optical layer comprising a second polyester; and wherein the first and second optical layers have refractive indices along at least one axis that differ by at least 0.04. The multilayer optical film may be a polarizer film, a reflective polarizer film, a diffuse blend reflective polarizer film, a diffuser film, a brightness enhancing film, a turning film, a mirror film, or a combination thereof. The multilayer optical film may also be a transaction card such as a financial transaction card, an identification card, a key card, or a ticket card. A method of making the multilayer film is also disclosed.Type: ApplicationFiled: March 18, 2020Publication date: July 9, 2020Inventors: Chad R. Wold, Yufeng Liu, Timothy J. Hebrink, Stephen A. Johnosn, Diane North, Laurent Froissard, Edward J. Kivel
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Patent number: 10519350Abstract: A copolymer that includes first divalent units having a pendent ultraviolet absorbing group, second divalent units represented by formula (I):, and third divalent units represented by formula (II):. Each R1 is independently hydrogen or methyl; R2 is a straight-chain or branched alkyl having from 1 to 20 carbon atoms; V is O or NH; W is alkylene having from 1 to 10 carbon atoms; and each R? is independently alkyl having from 1 to 6 carbon atoms. Compositions including the copolymer, for example, pressure sensitive adhesive compositions are disclosed. Articles including the compositions are disclosed. For example, an assembly including a barrier film and the pressure sensitive adhesive composition is also disclosed.Type: GrantFiled: June 23, 2016Date of Patent: December 31, 2019Assignee: 3M Innovative Properties CompanyInventors: David B. Olson, Diane North, Patricia M. Savu, Eric M. Peterson
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Patent number: 10162090Abstract: The present disclosure includes a stretchable reflective film comprising a transparent polymer layer; a continuous metal layer comprising at least one of tin or indium; a non-reactive adhesive layer; and a stretchable film layer. The stretchable reflective film has at least 30% specular reflectivity when stretched by 50% of the unstretched length according to Specular Reflectivity Test Method.Type: GrantFiled: February 20, 2018Date of Patent: December 25, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Joan M. Frankel, Kevin D. Hagen, Michael A. Johnson, Diane North, James A. Phipps, Audrey A. Sherman, Huiwen Tai
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Patent number: 10125251Abstract: A composition that includes a blend of a fluoropolymer and an ultraviolet light-absorbing oligomer. The oligomer has a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit represented by formula (I): At least one of the following limitations is also met: the ultraviolet light-absorbing oligomer further comprises a third divalent unit comprising a pendent 2,2,6,6-tetramethylpiperidinyl group, or the composition further comprises a second oligomer comprising a third divalent unit comprising a pendent 2,2,6,6-tetramethylpiperidinyl group at least one of the second divalent units. Articles including the composition are disclosed. The composition can be an extruded film. A method of making such an extruded film is also disclosed.Type: GrantFiled: June 25, 2015Date of Patent: November 13, 2018Assignee: 3M Innovative Properties CompanyInventors: David B. Olson, Patricia M. Savu, Diane North
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Publication number: 20180187053Abstract: A copolymer that includes first divalent units having a pendent ultraviolet absorbing group, second divalent units represented by formula (I):, and third divalent units represented by formula (II):. Each R1 is independently hydrogen or methyl; R2 is a straight-chain or branched alkyl having from 1 to 20 carbon atoms; V is O or NH; W is alkylene having from 1 to 10 carbon atoms; and each R? is independently alkyl having from 1 to 6 carbon atoms. Compositions including the copolymer, for example, pressure sensitive adhesive compositions are disclosed. Articles including the compositions are disclosed. For example, an assembly including a barrier film and the pressure sensitive adhesive composition is also disclosed.Type: ApplicationFiled: June 23, 2016Publication date: July 5, 2018Inventors: David B. OLSON, Diane NORTH, Patricia M. SAVU, Eric M. PETERSON
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Patent number: 9998070Abstract: The present disclosure generally relates to durable solar mirror films, methods of making durable solar mirror films, and constructions including durable solar mirror films. In one embodiment, the present disclosure relates to a solar mirror film comprising: a multilayer optical film layer including having a coefficient of hygroscopic expansion of less than about 30 ppm per percent relative humidity; and a reflective layer having a coefficient of hygroscopic expansion.Type: GrantFiled: December 28, 2016Date of Patent: June 12, 2018Assignee: 3m Innovative Properties CompanyInventors: Mark B. O'Neill, Andrew J. Henderson, Timothy J. Hebrink, Rajesh K. Katare, Naiyong Jing, Diane North, Eric M. Peterson
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Publication number: 20170242164Abstract: The present disclosure generally relates to multilayer optical films having an asymmetric construction and durable solar mirror films comprising such multilayer optical films, as well as constructions including durable solar mirror films.Type: ApplicationFiled: March 2, 2015Publication date: August 24, 2017Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: MARK B. O'NEILL, DIANE NORTH
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Publication number: 20170198129Abstract: A composition that includes a blend of a fluoropolymer and an ultraviolet light-absorbing oligomer. The oligomer has a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit represented by formula (I): At least one of the following limitations is also met: the ultraviolet light-absorbing oligomer further comprises a third divalent unit comprising a pendent 2,2,6,6-tetramethylpiperidinyl group, or the composition further comprises a second oligomer comprising a third divalent unit comprising a pendent 2,2,6,6-tetramethylpiperidinyl group at least one of the second divalent units. Articles including the composition are disclosed. The composition can be an extruded film. A method of making such an extruded film is also disclosed.Type: ApplicationFiled: June 25, 2015Publication date: July 13, 2017Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: David B. Olson, Patricia M. Savu, Diane North
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Publication number: 20170198119Abstract: An ultraviolet light-absorbing oligomer that includes a first divalent unit represented by formula (I): and a second divalent unit represented by formula (II): Each R1 is independently hydrogen or methyl; V is O or NH; X is bond or X is alkylene or alkyleneoxy group having from 1 to 10 carbon atoms and optionally interrupted by one or more —O— groups and optionally substituted by a hydroxyl group; and R2 is alkyl having from 1 to 22 carbon atoms. Compositions that include fluoropolymers and the oligomers are disclosed. The composition can be an extruded film. Compositions that include pressure sensitive adhesives and these oligomers are disclosed.Type: ApplicationFiled: June 25, 2015Publication date: July 13, 2017Inventors: David B. Olson, Patricia M. Savu, Diane North
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Publication number: 20170198177Abstract: A composition that includes a blend of a pressure sensitive adhesive and an ultraviolet light-absorbing oligomer. The oligomer has a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit represented by formula in which R1 is hydrogen or methyl, and R2 is alkyl having from 4 to 20 carbon atom. Articles including the composition are disclosed. For example, an assembly including a barrier film and the composition is also disclosed.Type: ApplicationFiled: June 25, 2015Publication date: July 13, 2017Inventors: David B. Olson, Patricia M. Savu, Diane North, Jordan C. DuCharme
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Publication number: 20170192130Abstract: A multilayer optical film includes alternating layers of first and second optical layers; the first optical layer comprising a first polyester, wherein the first polyester comprises first dicarboxylate monomers and first diol monomers, and from about 0.25 to less than 10 mol % of the first dicarboxylate monomers have pendant ionic groups; the second optical layer comprising a second polyester; and wherein the first and second optical layers have refractive indices along at least one axis that differ by at least 0.04. The multilayer optical film may be a polarizer film, a reflective polarizer film, a diffuse blend reflective polarizer film, a diffuser film, a brightness enhancing film, a turning film, a mirror film, or a combination thereof. The multilayer optical film may also be a transaction card such as a financial transaction card, an identification card, a key card, or a ticket card. A method of making the multilayer film is also disclosed.Type: ApplicationFiled: March 17, 2017Publication date: July 6, 2017Inventors: Yufeng Liu, Timothy J. Hebrink, Stephen A. Johnson, Diane North
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Publication number: 20170111007Abstract: The present disclosure generally relates to durable solar mirror films, methods of making durable solar mirror films, and constructions including durable solar mirror films. In one embodiment, the present disclosure relates to a solar mirror film comprising: a multilayer optical film layer including having a coefficient of hygroscopic expansion of less than about 30 ppm per percent relative humidity; and a reflective layer having a coefficient of hygroscopic expansion.Type: ApplicationFiled: December 28, 2016Publication date: April 20, 2017Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: MARK B. O'NEILL, ANDREW J. HENDERSON, TIMOTHY J. HEBRINK, RAJESH K. KATARE, NAIYONG JING, DIANE NORTH, ERIC M. PETERSON
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Patent number: 9568653Abstract: The present disclosure generally relates to durable solar mirror films, methods of making durable solar mirror films, and constructions including durable solar mirror films. In one embodiment, the present disclosure relates to a solar mirror film comprising: a multilayer optical film layer including having a coefficient of hygroscopic expansion of less than about 30 ppm per percent relative humidity; and a reflective layer having a coefficient of hygroscopic expansion.Type: GrantFiled: April 22, 2013Date of Patent: February 14, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Mark B. O'Neill, Andrew J. Henderson, Timothy J. Hebrink, Rajesh K. Katare, Naiyong Jing, Diane North, Eric M. Peterson
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Publication number: 20150109693Abstract: The present disclosure generally relates to durable solar mirror films, methods of making durable solar mirror films, and constructions including durable solar mirror films. In one embodiment, the present disclosure relates to a solar mirror film comprising: a multilayer optical film layer including having a coefficient of hygroscopic expansion of less than about 30 ppm per percent relative humidity; and a reflective layer having a coefficient of hygroscopic expansion.Type: ApplicationFiled: April 22, 2013Publication date: April 23, 2015Applicant: 3M Innovative Properties CompanyInventors: Mark B. O'Neill, Andrew J. Henderson, Timothy J. Hebrink, Rajesh K. Katare, Naiyong Jing, Diane North, Eric M. Peterson
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Patent number: 8435462Abstract: Methods and devices for thermal processing of multiple samples at the same time are disclosed. The sample processing devices provide process arrays that include conduits useful in distributing sample materials to a group of process chambers located in fluid communication with the main conduits. The sample processing devices may include one or more of the following features in various combinations: deformable seals, process chambers connected to the main conduit by feeder conduits exiting the main conduit at offset locations, U-shaped loading chambers, and a combination of melt bonded and adhesively bonded areas.Type: GrantFiled: December 30, 2005Date of Patent: May 7, 2013Assignee: 3M Innovative Properties CompanyInventors: William Bedingham, Chad J. Carter, Robert A. Harkins, Michael R. Harms, Christopher R. Kokaisel, Diane North, Kenneth B. Wood
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Publication number: 20100230835Abstract: A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured.Type: ApplicationFiled: May 24, 2010Publication date: September 16, 2010Inventors: Andrew J. Ouderkirk, Olester Benson, JR., James C. Breister, Robert L. Brott, Yeun-Jong Chou, Patrick R. Fleming, William J. Kopecky, Diane North, Roger J. Stumo, Kristin L. Thunhorst, Bruce B. Wilson