Patents by Inventor Huiwen Tai
Huiwen Tai 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: 20230348756Abstract: A film stack is described. In particular, a film stack that includes a co-extrudable first base substrate, a first pressure sensitive adhesive, a release layer, a second pressure sensitive adhesive, and a second base substrate is described. Such film stacks may benefit from reduced waste, simpler manufacturing, and a thinner overall construction versus conventional film stacks.Type: ApplicationFiled: October 8, 2021Publication date: November 2, 2023Inventors: Jeffrey O. Emslander, Huiwen Tai, John A. Nielsen
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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: 20230193082Abstract: Film stacks are described. In particular, film stacks including a base overlaminate film layer and a removeable skin layer disposed on the base overlaminate film layer are described. Because the removable skin layer develops haze before the point of irreversibly damaging the base overlaminate layer, the film stack can prevent unintentional overstretching when the film stack is stretched together.Type: ApplicationFiled: March 16, 2021Publication date: June 22, 2023Inventors: Huiwen Tai, John A. Nielsen
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Publication number: 20230167334Abstract: Hot melt processable composition mixtures include an acid-functional (meth)acrylate-based adhesive composition and a zinc di-(meth)acrylate salt. The adhesive composition has a hot melt processing temperature, and the zinc salt has a melting point that is higher than the hot melt processing temperature of the adhesive composition. The mixture is hot melt processable, and upon application to a substrate, the mixture forms an ionically crosslinked layer with thermally reversable ionic crosslinks.Type: ApplicationFiled: April 28, 2021Publication date: June 1, 2023Inventors: Huiwen Tai, John A. Nielsen, Anish Kurian
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Publication number: 20220234382Abstract: A transfer article with a thickness of less than 3 micrometers includes a first acrylate layer that is releasable from a metal or doped semiconductor release layer at a release value of from 2 to 50 grams/inch. The article includes a functional layer overlaying the first acrylate layer. The functional layer includes at least one microfractured inorganic layer about 3 nanometers to about 200 nanometers thick, which has a plurality of toolmarks interspersed with cracks.Type: ApplicationFiled: May 26, 2020Publication date: July 28, 2022Inventors: Kevin W. Gotrik, Scott J. Jones, Huiwen Tai, Joan M. Frankel, Robert R. Owings, Bhaskar V. Velamakanni, Jeanne M. Bruss, David J. Rowe, Matthew E. Sousa, Bradley L. Givot
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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: 10634832Abstract: Low loss, high reflectivity wide band mirror films provide a desired mix of specular reflection and diffuse reflection or scattering to provide semi-specular reflectivity. The mirror films generally include both a specularly reflective multilayer optical film (MOF) having a wide reflection band, and a scattering layer. In some cases a low refractive index TIR layer is sandwiched between the MOF and the scattering layer. In other cases the scattering layer contacts the MOF directly. In embodiments that include the TIR layer, the TIR layer preferably has a nanovoided morphology and includes a plurality of particles and a polymer binder. In embodiments wherein the scattering layer contacts the MOF directly, the scattering layer preferably also has a nanovoided morphology and includes a plurality of particles and a polymer binder.Type: GrantFiled: June 11, 2018Date of Patent: April 28, 2020Assignee: 3M Innovative Properties CompanyInventors: William D. Coggio, William B. Black, Michael F. Weber, Huiwen Tai
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Publication number: 20190242042Abstract: Various embodiments disclosed related to flexible fibrous surface-treating articles with low formaldehyde off-gassing. In various embodiments, the present invention provides a flexible fibrous surface-treating article including an open, lofty, nonwoven web including fibers. The flexible fibrous surface-treating article also includes a binder that coats the fibers of the nonwoven web. The binder includes a cured product of a curable composition including a latex and a crosslinker. The flexible fibrous surface-treating article heated to 65° C. in a closed space for 30 minutes emits less than about 6 micrograms of gaseous formaldehyde total per gram of the flexible fibrous surface-treating article.Type: ApplicationFiled: June 15, 2017Publication date: August 8, 2019Inventors: Gordon L. Altshuler, Huiwen Tai, Jesse D. Lund
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Patent number: 10281622Abstract: A multilayer polymeric reflector is provided which comprises: a) a plurality of first optical layers, each first optical layer comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units, the polyester having a glass transition temperature, where each first optical layer is oriented, and b) a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethyl methacrylate (PMMA) and polyvinylidene fluoride (PVDF), where the blend has a glass transition temperature less than the glass transition temperature of the polyester comprising the first optical layers, and where the amount of PVDF in the PMMA/PVDF blend is greater than and not equal to about 40% and not more than about 65%. Articles comprising the multilayer polymeric reflector are also provided.Type: GrantFiled: August 2, 2017Date of Patent: May 7, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Huiwen Tai
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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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Publication number: 20180292588Abstract: Low loss, high reflectivity wide band mirror films provide a desired mix of specular reflection and diffuse reflection or scattering to provide semi-specular reflectivity. The mirror films generally include both a specularly reflective multilayer optical film (MOF) having a wide reflection band, and a scattering layer. In some cases a low refractive index TIR layer is sandwiched between the MOF and the scattering layer. In other cases the scattering layer contacts the MOF directly. In embodiments that include the TIR layer, the TIR layer preferably has a nanovoided morphology and includes a plurality of particles and a polymer binder. In embodiments wherein the scattering layer contacts the MOF directly, the scattering layer preferably also has a nanovoided morphology and includes a plurality of particles and a polymer binder.Type: ApplicationFiled: June 11, 2018Publication date: October 11, 2018Inventors: William D. Coggio, William B. Black, Michael F. Weber, Huiwen Tai
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Patent number: 10018757Abstract: A multilayer polymeric reflector is provided which comprises: a) a plurality of first optical layers, each first optical layer comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units, the polyester having a glass transition temperature, where each first optical layer is oriented, and b) a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethyl methacrylate (PMMA) and polyvinylidene fluoride (PVDF), where the blend has a glass transition temperature less than the glass transition temperature of the polyester comprising the first optical layers, and where the amount of PVDF in the PMMA/PVDF blend is greater than and not equal to about 40% and not more than about 65%. Articles comprising the multilayer polymeric reflector are also provided.Type: GrantFiled: August 2, 2017Date of Patent: July 10, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Huiwen Tai
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Patent number: 9995861Abstract: Low loss, high reflectivity wide band mirror films provide a desired mix of specular reflection and diffuse reflection or scattering to provide semi-specular reflectivity. The mirror films generally include both a specularly reflective multilayer optical film (MOF) having a wide reflection band, and a scattering layer. In some cases a low refractive index TIR layer is sandwiched between the MOF and the scattering layer. In other cases the scattering layer contacts the MOF directly. In embodiments that include the TIR layer, the TIR layer preferably has a nanovoided morphology and includes a plurality of particles and a polymer binder. In embodiments wherein the scattering layer contacts the MOF directly, the scattering layer preferably also has a nanovoided morphology and includes a plurality of particles and a polymer binder.Type: GrantFiled: October 14, 2011Date of Patent: June 12, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: William D. Coggio, William B. Black, Michael F. Weber, Huiwen Tai
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Publication number: 20170351011Abstract: A multilayer polymeric reflector is provided which comprises: a) a plurality of first optical layers, each first optical layer comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units, the polyester having a glass transition temperature, where each first optical layer is oriented, and b) a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethyl methacrylate (PMMA) and polyvinylidene fluoride (PVDF), where the blend has a glass transition temperature less than the glass transition temperature of the polyester comprising the first optical layers, and where the amount of PVDF in the PMMA/PVDF blend is greater than and not equal to about 40% and not more than about 65%. Articles comprising the multilayer polymeric reflector are also provided.Type: ApplicationFiled: August 2, 2017Publication date: December 7, 2017Inventor: Huiwen Tai
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Publication number: 20170329060Abstract: A multilayer polymeric reflector is provided which comprises: a) a plurality of first optical layers, each first optical layer comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units, the polyester having a glass transition temperature, where each first optical layer is oriented, and b) a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethyl methacrylate (PMMA) and polyvinylidene fluoride (PVDF), where the blend has a glass transition temperature less than the glass transition temperature of the polyester comprising the first optical layers, and where the amount of PVDF in the PMMA/PVDF blend is greater than and not equal to about 40% and not more than about 65%. Articles comprising the multilayer polymeric reflector are also provided.Type: ApplicationFiled: August 2, 2017Publication date: November 16, 2017Inventor: Huiwen Tai
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Patent number: 9739912Abstract: A multilayer polymeric reflector is provided which comprises: a) a plurality of first optical layers, each first optical layer comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units, the polyester having a glass transition temperature, where each first optical layer is oriented, and b) a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethyl methacrylate (PMMA) and polyvinylidene fluoride (PVDF), where the blend has a glass transition temperature less than the glass transition temperature of the polyester comprising the first optical layers, and where the amount of PVDF in the PMMA/PVDF blend is greater than and not equal to about 40% and not more than about 65%. Articles comprising the multilayer polymeric reflector are also provided.Type: GrantFiled: November 18, 2014Date of Patent: August 22, 2017Assignee: 3M Innovative Properties CompanyInventor: Huiwen Tai
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Patent number: 9726349Abstract: The present disclosure provides decorative lights using prismatic film such as Optical Lighting Film (OLF) available from 3M Company, and a diffuse partial reflector. The decorative lights generate design styles and comfort for a light fixture, and can use solid state lighting such as Light Emitting Diodes (LEDs) to generate the light. The decorative lights can have an appearance that changes with the viewing angle of the light.Type: GrantFiled: March 30, 2012Date of Patent: August 8, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Huiwen Tai
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Patent number: 9664834Abstract: An optical film that includes a reflective polarizer and a stretched polymer film is disclosed. The stretched polymer film is laminated to the reflective polarizer, and the stretched polymer film exhibits a refractive index symmetry point at an angle of incidence in air of at least about 60 degrees in a plane of incidence parallel to a direction of greatest stretch.Type: GrantFiled: March 30, 2009Date of Patent: May 30, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Ellen R. Bösl, Bert T. Chien, Carsten Franke, Shandon D. Hart, Brent A. Hedding, Donovan C. Karg, Jr., Thomas J. Ludemann, Meghan A. Bradley, Mark B. O'Neill, Jeffrey A. Peterson, Joan M. Strobel, Huiwen Tai, John F. Van Derlofske, III, Michael F. Weber, Chiu Ping Wong, Richard J. Pokorny, John P. Baetzold
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Publication number: 20160245965Abstract: A multilayer polymeric reflector is provided which comprises: a) a plurality of first optical layers, each first optical layer comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units, the polyester having a glass transition temperature, where each first optical layer is oriented, and b) a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethyl methacrylate (PMMA) and polyvinylidene fluoride (PVDF), where the blend has a glass transition temperature less than the glass transition temperature of the polyester comprising the first optical layers, and where the amount of PVDF in the PMMA/PVDF blend is greater than and not equal to about 40% and not more than about 65%. Articles comprising the multilayer polymeric reflector are also provided.Type: ApplicationFiled: November 18, 2014Publication date: August 25, 2016Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventor: Huiwen Tai
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Publication number: 20150009563Abstract: The present invention generally relates to a film stack having a light-control film, such as a privacy filter, and a p-polarization color shifting film. The present invention also relates to articles, such as displays, incorporating the same.Type: ApplicationFiled: March 11, 2013Publication date: January 8, 2015Inventors: Michael E. Lauters, Yufeng Liu, Stephen A. Johnson, Michael F. Weber, Huiwen Tai