Patents by Inventor Florence Mehlmann
Florence Mehlmann 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: 11815658Abstract: Films having high light transmission values, low haze and high glass transition temperatures and useful, for example, as optical protection films and zero-zero optical retardation films, are prepared using one or more copolymers of methyl methacrylate having certain characteristics.Type: GrantFiled: February 20, 2018Date of Patent: November 14, 2023Assignee: Trinseo Europe GmbHInventors: Jiaxin Jason Ge, Florence Mehlmann, Estelle Meurice Pierrat
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Patent number: 11719411Abstract: The invention relates to high efficiency diffusion lighting coverings useful in LED lighting applications. The diffusing lighting coverings are made of organic diffusing particles homogeneously dispersed in a transparent polymer matrix. The primary organic diffusing particles are refractive index mis-matched to the matrix polymer. The refractive index contrast between the polymer matrix and diffusion particles, and particle size are selected to provide a high efficiency (minimized particle loading). The high efficiency diffusion coverings provides excellent light diffusion, high hiding properties and high light transmission. The secondary diffusion particles may optionally be added to further improve selected target properties of the covering. Nano-sized ZnO inorganic particles may also function as diffusion particles and optical brighteners as well UV stabilizers.Type: GrantFiled: July 31, 2020Date of Patent: August 8, 2023Assignee: TRINSEO EUROPE GMBHInventors: Jiaxin Jason Ge, Michael T. Burchill, Gary A. Hall, Florence Mehlmann, Brian M. Cromer
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Patent number: 11607869Abstract: The invention relates to multilayer polymer structures having at least three layers. These layers include a polar capstock layer other than an acrylic, an olefinic substrate layer, and a tie layer. The tie layer is selected from olefinic acrylate copolymers, a block copolymer of vinyl aromatic monomer with an aliphatic conjugated diene or a derivative thereof, a copolymer of olefin and (meth)acrylic acid partially or fully in the salt form, a high impact polystyrene, and/or a vinyl cyanide-containing compound. Each layer could contain multiple sub-layers. The multilayer structure exhibits excellent structural integrity, excellent surface appearance, high impact strength, high scratch resistance, and excellent resistance to UV rays.Type: GrantFiled: April 3, 2013Date of Patent: March 21, 2023Assignee: Trinseo Europe GmbHInventors: Charles C. Crabb, Thomas H. Richards, Steven B. Lacock, Florence Mehlmann
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Publication number: 20220411552Abstract: Acid-functionalized copolymers of methyl methacrylate having relatively high glass transition temperatures and molecular weights may be employed to manufacture articles having high light transmission values, low haze, high heat resistance, and high environmental stability, which are useful as optical protection films, zero-zero optical retardation films, and compensation films as well as lighting pipes and optical imaging lenses.Type: ApplicationFiled: August 26, 2022Publication date: December 29, 2022Applicant: Trinseo Europe GmbHInventors: Jiaxin Jason Ge, Noah E. Macy, Florence Mehlmann, Estelle Meurice Pierrat
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Publication number: 20220340745Abstract: Disclosed is a composition comprising a PVDF copolymer where at least one comonomer is selected from Hexafluoropropene, 2,3,3,3-tetrafluoropropylene, 3,3,3-trifluoropropene, from 0.005-5% of one or more inorganic or polymeric nucleating additives and 0.01-20% of one or more dispersing agents having reduced haze. Also disclosed is a method of preparing the composition.Type: ApplicationFiled: October 21, 2020Publication date: October 27, 2022Inventors: Florence Mehlmann, James T. Goldbach, Anthony Bonnet
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Publication number: 20220297085Abstract: The invention relates to a solid porous article having a crosslinked thermoplastic binder interconnecting one or more types of interactive powdery materials or fibers. The interconnectivity is such that the binder connects the powdery materials or fibers in discrete spots rather than as a complete coating, allowing the materials or fibers to be in direct contact with, and interact with a fluid. The resulting article is a formed multicomponent, interconnected web, with porosity. The separation article is useful in water purification, as well as in the separation of dissolved or suspended materials in both aqueous and non-aqueous systems in industrial uses, gas storage.Type: ApplicationFiled: June 23, 2020Publication date: September 22, 2022Inventors: Florence MEHLMANN, Azaz A. VAHORA
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Publication number: 20220025166Abstract: Disclosed is a thermoplastic elastomer composition comprising a blend of at least two fluoropolymers. The first fluoropolymer has from 0 to 30 weight percent of a monomer J selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof. The second fluoropolymer has at least 30 weight percent, preferably at least 35 weight percent, of monomer T selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof.Type: ApplicationFiled: December 5, 2019Publication date: January 27, 2022Inventors: Adam W. HAUSER, Mathieu Y. CAPELOT, Florence MEHLMANN, Gregory S. O'BRIEN
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Patent number: 11136443Abstract: The invention relates to multi-layer thermoplastic composites, and in particular composites having fluoropolymer in the outer layer and a thermoplastic substrate layer. The fluoropolymer outer layer may either be a layer comprising a majority, and preferably 100 percent fluoropolymer, or may be a blend of a thermoplastic matrix with fluoropolymer at a level of from 5 to 60 weight percent, based on the total weight of all polymers. Especially useful thermoplastic matrices include acrylic polymers, and styrenic polymers, especially styrenic copolymers such as acrylonitrile/styrene/acrylate (ASA), acrylonitrile/butadiene/styrene (ABS) and styrene/acrylonitrile (SAN). While the fluoropolymer may be any fluoropolymer, thermoplastic fluoropolymers, such as polymers and copolymers of polyvinylidene fluoride are especially useful.Type: GrantFiled: March 14, 2014Date of Patent: October 5, 2021Assignee: Arkema FranceInventors: Charles C. Crabb, Jack Reed, Florence Mehlmann, Adam N. Toft, Amy A. Lefebvre
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Patent number: 11007760Abstract: The invention relates to multilayer composites having improved weathering properties without reducing flame retardation properties. The composites have a fluoropolymer layer over a thermoplastic layer. The multilayer composite may be a fluoropolymer layer directly over a relatively flammable substrate or non-flammable substrate (like PVC), or it may be a fluoropolymer layer over a relatively flammable cap layer, over a substrate (that is flammable or non-flammable). The composite is formed using coating, coextrusion and/or lamination techniques. The multilayer composite is especially useful in articles having surfaces that are used in a relatively horizontal position, including decking, railings, roofing and window profiles. The composites provide improved weathering for the substrate without a reduction in flame-resistance, when compared to the substrate without the outer fluoropolymer layer.Type: GrantFiled: January 23, 2020Date of Patent: May 18, 2021Assignee: Arkema FranceInventors: Adam N. Toft, Jack Reed, Amy A. Lefebvre, Charles C. Crabb, Florence Mehlmann
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Publication number: 20210115241Abstract: The present invention relates to a polymeric (meth) acrylic composition comprising polymeric silicone particles and optionally polymeric (meth) acrylic particles. In particular the present invention relates to a polymeric (meth) acrylic composition comprising polymeric silicone particles having a weight average particle diameter between 1 ???? and 10 ???? and optionally polymeric (meth) acrylic particles with a having a weight average particle diameter between 20 ???? and 100 ????. The present invention concerns also the use of such a polymeric (meth) acrylic composition comprising polymeric silicone particles and optionally polymeric (meth) acrylic particles as a masterbatch. The present invention concerns also a process for making a (meth) acrylic composition comprising polymeric silicone particles and polymeric (meth) acrylic particles from a polymeric (meth) acrylic masterbatch composition comprising polymeric silicone particles and optionally polymeric (meth) acrylic particles.Type: ApplicationFiled: January 31, 2019Publication date: April 22, 2021Inventors: Cedric ROY, Sylvain QUERUEL, Brian CROMER, Florence MEHLMANN, Jack REILLY
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Publication number: 20210101129Abstract: The present disclosure is directed to an immobilized media device and methods for making an immobilized media device. The present disclosure is also directed to methods for the separation of components of a media comprising filtering the media through an immobilized media device.Type: ApplicationFiled: April 8, 2019Publication date: April 8, 2021Inventors: Roderick REBER, III, Sean M. STABLER, Denis Kato DE ALMEIDA, Azaz A. VAHORA, Florence MEHLMANN
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Patent number: 10946627Abstract: The invention relates to a multilayered pultruded structure having a weatherable cap layer over a pultruded substrate, adhered with an appropriate tie layer. The structure provides improved weatherability and surface quality for pultruded structures. The invention is especially useful to provide a weatherable pultruded polyurethane, with an acrylic or styrenic cap layer. The weatherable polyurethane (PU) pultrusion of the invention provides an increased modulus over polyester pultrusions, making the weatherable PU pultrusion useful in commercial applications, and applications requiring a higher transverse modulus.Type: GrantFiled: April 8, 2015Date of Patent: March 16, 2021Assignee: Arkema FranceInventors: Thomas H. Richards, Florence Mehlmann, Laurent B. Cartier, Robert L. Kensicki, Robert J. Barsotti, Charles C. Crabb, Adam N. Toft, Steven B. Lacock
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Publication number: 20200363036Abstract: The invention relates to high efficiency diffusion lighting coverings useful in LED lighting applications. The diffusing lighting coverings are made of organic diffusing particles homogeneously dispersed in a transparent polymer matrix. The primary organic diffusing particles are refractive index mis-matched to the matrix polymer. The refractive index contrast between the polymer matrix and diffusion particles, and particle size are selected to provide a high efficiency (minimized particle loading). The high efficiency diffusion coverings provides excellent light diffusion, high hiding properties and high light transmission. The secondary diffusion particles may optionally be added to further improve selected target properties of the covering. Nano-sized ZnO inorganic particles may also function as diffusion particles and optical brighteners as well UV stabilizers.Type: ApplicationFiled: July 31, 2020Publication date: November 19, 2020Inventors: Jiaxin Jason GE, Michael T. BURCHILL, Gary A. HALL, Florence MEHLMANN, Brian M. CROMER
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Patent number: 10732330Abstract: The invention relates to high efficiency diffusion lighting coverings useful in LED lighting applications. The diffusing lighting coverings are made of organic diffusing particles homogeneously dispersed in a transparent polymer matrix. The primary organic diffusing particles are refractive index mis-matched to the matrix polymer. The refractive index contrast between the polymer matrix and diffusion particles, and particle size are selected to provide a high efficiency (minimized particle loading). The high efficiency diffusion coverings provides excellent light diffusion, high hiding properties and high light transmission. The secondary diffusion particles may optionally be added to further improve selected target properties of the covering. Nano-sized ZnO inorganic particles may also function as diffusion particles and optical brighteners as well UV stabilizers.Type: GrantFiled: February 23, 2016Date of Patent: August 4, 2020Assignee: Arkema FranceInventors: Jiaxin Jason Ge, Michael T. Burchill, Gary A. Hall, Florence Mehlmann
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Publication number: 20200156357Abstract: The invention relates to multilayer composites having improved weathering properties without reducing flame retardation properties. The composites have a fluoropolymer layer over a thermoplastic layer. The multilayer composite may be a fluoropolymer layer directly over a relatively flammable substrate or non-flammable substrate (like PVC), or it may be a fluoropolymer layer over a relatively flammable cap layer, over a substrate (that is flammable or non-flammable). The composite is formed using coating, coextrusion and/or lamination techniques. The multilayer composite is especially useful in articles having surfaces that are used in a relatively horizontal position, including decking, railings, roofing and window profiles. The composites provide improved weathering for the substrate without a reduction in flame-resistance, when compared to the substrate without the outer fluoropolymer layer.Type: ApplicationFiled: January 23, 2020Publication date: May 21, 2020Inventors: Adam N. TOFT, Jack REED, Amy A. LEFEBVRE, Charles C. CRABB, Florence MEHLMANN
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Patent number: 10562282Abstract: The invention relates to multilayer composites having improved weathering properties without reducing flame retardation properties. The composites have a fluoropolymer layer over a thermoplastic layer. The multilayer composite may be a fluoropolymer layer directly over a relatively flammable substrate or non-flammable substrate (like PVC), or it may be a fluoropolymer layer over a relatively flammable cap layer, over a substrate (that is flammable or non-flammable). The composite is formed using coating, coextrusion and/or lamination techniques. The multilayer composite is especially useful in articles having surfaces that are used in a relatively horizontal position, including decking, railings, roofing and window profiles. The composites provide improved weathering for the substrate without a reduction in flame-resistance, when compared to the substrate without the outer fluoropolymer layer.Type: GrantFiled: March 14, 2014Date of Patent: February 18, 2020Assignee: Arkema FranceInventors: Adam N. Toft, Jack Reed, Amy A. Lefebvre, Charles C. Crabb, Florence Mehlmann
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Patent number: 10532340Abstract: The invention relates to the use of a high performance thermoplastic polymer binder material for immobilizing adsorptive materials, such as activated carbon, in gas storage devices. The use of these binders, especially polyamide binders, polytetrafluoroethylene binders, or polyvinylidene fluoride binders such as Kyblock® resin, provides for high sorbent packing density, low fouling solid structure that maximizes the volume of gas to the volume of the storage space.Type: GrantFiled: July 11, 2018Date of Patent: January 14, 2020Assignee: Arkema Inc.Inventors: Sean M. Stabler, Azaz A. Vahora, Denis Kato De Almeida, Florence Mehlmann, Ramin Amin-Sanayei
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Patent number: 10518508Abstract: The invention relates to a multi-layer structure having at least one inner layer containing an alloy of a biopolymer and an acrylic polymer and at least one outer layer containing a thermoplastic or thermoset polar polymer matrix. The combination of outer polar layer and an inner biopolymer/acrylic layer provides improved properties, such as improved adhesion, and improved mechanical properties. The multi-layer structure may be in the form of a sheet, a film, a tube or pipe, or a profile, and could be used by itself or as a cap-layer over a substrate.Type: GrantFiled: July 26, 2013Date of Patent: December 31, 2019Assignee: Arkema FranceInventors: Florence Mehlmann, Robert J. Barsotti, Charles C. Crabb, Thomas H. Richards, Steven B. Lacock, Mark A. Aubart, Adam N. Toft
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Publication number: 20190367720Abstract: Films having high light transmission values, low haze and high glass transition temperatures and useful, for example, as optical protection films and zero-zero optical retardation films, are prepared using one or more copolymers of methyl methacrylate having certain characteristics.Type: ApplicationFiled: February 20, 2018Publication date: December 5, 2019Inventors: Jiaxin Jason GE, Florence MEHLMANN, Estelle MEURICE PIERRAT
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Publication number: 20190367721Abstract: Acid-functionalized copolymers of methyl methacrylate having relatively high glass transition temperatures and molecular weights may be employed to manufacture articles having high light transmission values, low haze, high heat resistance, and high environmental stability, which are useful as optical protection films, zero-zero optical retardation films, and compensation films as well as lighting pipes and optical imaging lenses.Type: ApplicationFiled: February 20, 2018Publication date: December 5, 2019Inventors: Jiaxin Jason GE, Noah E. MACY, Florence MEHLMANN, Estelle MEURICE PIERRAT