Patents by Inventor Fiorenzo Lenzi
Fiorenzo Lenzi 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: 20230331945Abstract: The invention relates to a multilayer prepreg comprising a first and a second fiber prepreg, one or two micaceous prepregs and B staged thermosetting resin, which may be different for each layer or identical. The micaceous prepregs are positioned on the top (outside) of the fiber prepregs. There may be plurality of further fiber prepregs. The micaceous prepregs preferably comprise mica flakes in the form of a mica paper. The use of such prepreg as surfacing layer at the top of a composite material or near the top of a composite material can determine an improvement in burn-through and fire retardancy performance of composite materials. It is also disclosed a cured composite panel, such as an aircraft part, obtainable by curing the multilayer prepreg to a C stage.Type: ApplicationFiled: September 8, 2021Publication date: October 19, 2023Inventors: Fiorenzo LENZI, Nicolas MULLOT, Markus RUDIN, Dimitri MEIER
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Patent number: 11664647Abstract: A multifunctional surfacing material capable of providing lightning strike protection (LSP) and burn-through resistance. In one embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers, at least one of which contains one or more fire retardant compounds. In another embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers one of which is a thermally-stable layer. The surfacing material is co-curable with a composite substrate, e.g. prepreg or prepreg layup, which contains fiber-reinforced matrix resin.Type: GrantFiled: July 21, 2021Date of Patent: May 30, 2023Assignee: CYTEC INDUSTRIES INC.Inventors: Junjie Jeffrey Sang, Fiorenzo Lenzi, Jonathan Edward Meegan, Leonard MacAdams, Yiqiang Zhao, Dalip Kumar Kohli
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Patent number: 11565509Abstract: A composite material having at least two layers of reinforcing fibers impregnated with a curable resin; an interlaminar region formed between adjacent layers of reinforcing fibers; and a combination of polymeric toughening particles and fire-retardant particles in the interlaminar region.Type: GrantFiled: March 6, 2018Date of Patent: January 31, 2023Assignee: Cytec Industries Inc.Inventors: Fiorenzo Lenzi, Carmelo Luca Restuccia
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Publication number: 20220297412Abstract: A lightweight, flame-retardant, multilayered composite structure having at least the following components: a thermoplastic foam core having two opposing surfaces; a thermoplastic adhesive film on at least one of the opposing surfaces of the foam core, one or more composite layer(s) on each adhesive film. The composite layer(s) is/are composed of reinforcement fibers embedded in a thermoplastic polymer or thermoset resin matrix. Adhesive bonding is effectuated by the interleaving thermoplastic adhesive film interposed between the thermoplastic foam core and the adjacent composite layer. The thermoplastic adhesive film is formed of a thermoplastic polymer composition having a Tg of at least 20° C. lower than the Tg of the foam core material.Type: ApplicationFiled: April 17, 2020Publication date: September 22, 2022Inventors: Stefano MORTARA, Pete WOLOSON, Paolo TONIOLO, Fiorenzo LENZI, Alexander VOGEL
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Publication number: 20220102957Abstract: A multifunctional surfacing material capable of providing lightning strike protection (LSP) and burn-through resistance. In one embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers, at least one of which contains one or more fire retardant compounds. In another embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers one of which is a thermally-stable layer. The surfacing material is co-curable with a composite substrate, e.g. prepreg or prepreg layup, which contains fiber-reinforced matrix resin.Type: ApplicationFiled: July 21, 2021Publication date: March 31, 2022Inventors: Junjie Jeffrey SANG, Fiorenzo LENZI, Jonathan Edward MEEGAN, Leonard MACADAMS, Yiqiang ZHAO, Dalip Kumar KOHLI
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Publication number: 20220041825Abstract: A curable composite laminate having an interlaminar region formed between adjacent layers of reinforcement fibers. The interlaminar region contains soluble polyimide particles that are dissolvable in the one or more thermoset resins at a curing temperature of the curable matrix resin, and insoluble thermoplastic particles that remain as discrete particles in the interlaminar region at the same curing temperature. Such curable composite laminate is capable of high resistance to the propagation of delamination upon curing.Type: ApplicationFiled: December 21, 2019Publication date: February 10, 2022Inventors: Fiorenzo LENZI, Vincent AERTS, Marco AURILIA, Hazel-Ann HOSEIN
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Patent number: 11108220Abstract: A multifunctional surfacing material capable of providing lightning strike protection (LSP) and burn-through resistance. In one embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers, at least one of which contains one or more fire retardant compounds. In another embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers one of which is a thermally-stable layer. The surfacing material is co-curable with a composite substrate, e.g. prepreg or prepreg layup, which contains fiber-reinforced matrix resin.Type: GrantFiled: December 29, 2016Date of Patent: August 31, 2021Assignee: CYTEC INDUSTRIES INC.Inventors: Junjie Jeffrey Sang, Fiorenzo Lenzi, Jonathan Edward Meegan, Leonard Macadams, Yiqiang Zhao, Dalip Kumar Kohli
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Publication number: 20200369011Abstract: A fire retardant veil (10) composed of intermingled, randomly arranged fibres and fire retardant particles (11) dispersed throughout the nonwoven structure of the veil (10). The veil (10) further includes a small amount of a polymeric or resinous binder for binding the fibres and the particles together. Such fire retardant veil (10) can be incorporated into composite laminates, prepregs, and fibrous preforms (12) configured for liquid resin infusion.Type: ApplicationFiled: December 21, 2018Publication date: November 26, 2020Inventors: Fiorenzo LENZI, Carmelo Luca RESTUCCIA
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Patent number: 10549499Abstract: A curable composite material having high z-direction electrical conductivity. The curable composite material includes two or more layers of reinforcement carbon fibers that have been infused or impregnated with a curable matrix resin and an interlaminar region containing at least conductive nano-sized particles, e.g. carbon nanotubes, and a light-weight carbon veil. According to another embodiment, the interlaminar region further contains polymeric toughening particles. Methods for fabricating composite materials and structures are also disclosed.Type: GrantFiled: January 15, 2019Date of Patent: February 4, 2020Assignee: CYTEC INDUSTRIES INC.Inventors: Carmelo Luca Restuccia, Fiorenzo Lenzi, Mark Bonneau, Josanlet Villegas, Emiliano Frulloni
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Patent number: 10507900Abstract: A composite material that includes a layer of reinforcing fibres impregnated with a curable resin matrix and a plurality of electrically conductive composite particles positioned adjacent or in proximity to the reinforcing fibres. Each of the electrically conductive composite particles is composed of a conductive component and a polymeric component, wherein the polymeric component includes one or more polymers that are initially in a solid phase and are substantially insoluble in the curable resin, but is able to undergo at least partial phase transition to a fluid phase during a curing cycle of the composite material.Type: GrantFiled: August 1, 2017Date of Patent: December 17, 2019Assignee: CYTEC TECHNOLOGY CORP.Inventors: Carmelo Luca Restuccia, Emiliano Frulloni, Fiorenzo Lenzi
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Patent number: 10370079Abstract: A composite material that includes a layer of reinforcing fibres impregnated with a curable resin matrix and a plurality of electrically conductive composite particles positioned adjacent or in proximity to the reinforcing fibers. Each of the electrically conductive composite particles is composed of a conductive component and a polymeric component, wherein the polymeric component includes one or more polymers that are initially in a solid phase and are substantially insoluble in the curable resin, but is able to undergo at least partial phase transition to a fluid phase during a curing cycle of the composite material.Type: GrantFiled: April 15, 2013Date of Patent: August 6, 2019Inventors: Carmelo Luca Restuccia, Emiliano Frulloni, Fiorenzo Lenzi
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Publication number: 20190143633Abstract: A curable composite material having high z-direction electrical conductivity. The curable composite material includes two or more layers of reinforcement carbon fibers that have been infused or impregnated with a curable matrix resin and an interlaminar region containing at least conductive nano-sized particles, e.g. carbon nanotubes, and a light-weight carbon veil. According to another embodiment, the interlaminar region further contains polymeric toughening particles. Methods for fabricating composite materials and structures are also disclosed.Type: ApplicationFiled: January 15, 2019Publication date: May 16, 2019Applicant: CYTEC INDUSTRIES INC.Inventors: Carmelo Luca Restuccia, Fiorenzo Lenzi, Mark Bonneau, Josanlet Villegas, Emiliano Frulloni
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Patent number: 10236092Abstract: A process for the production of a composition comprising one or more conductive nano-filler(s), one or more polyarylethersulphone thermoplastic polymer(s) (A), one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor, wherein said process comprises mixing or dispersing a first composition comprising one or more conductive nano-filler(s) and one or more polyarylethersulphone thermoplastic polymer(s) (A) with or into one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor.Type: GrantFiled: March 28, 2017Date of Patent: March 19, 2019Assignee: CYTEC TECHNOLOGY CORP.Inventors: Carmelo Luca Restuccia, Fiorenzo Lenzi, Emiliano Frulloni, Natalie Denise Jordan, Mark Edward Harriman
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Patent number: 10213984Abstract: A curable composite material having high z-direction electrical conductivity. The curable composite material includes two or more layers of reinforcement carbon fibers that have been infused or impregnated with a curable matrix resin and an interlaminar region containing at least conductive nano-sized particles, e.g. carbon nanotubes, and a light-weight carbon veil. According to another embodiment, the interlaminar region further contains polymeric toughening particles. Methods for fabricating composite materials and structures are also disclosed.Type: GrantFiled: September 21, 2015Date of Patent: February 26, 2019Assignee: CYTEC INDUSTRIES INC.Inventors: Carmelo Luca Restuccia, Fiorenzo Lenzi, Mark Bonneau, Josanlet Villegas, Emiliano Frulloni
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Publication number: 20190027913Abstract: A multifunctional surfacing material capable of providing lightning strike protection (LSP) and burn-through resistance. In one embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers, at least one of which contains one or more fire retardant compounds. In another embodiment, the multifunctional surfacing material is composed of a conductive layer positioned between two resin layers one of which is a thermally-stable layer. The surfacing material is co-curable with a composite substrate, e.g. prepreg or prepreg layup, which contains fiber-reinforced matrix resin.Type: ApplicationFiled: December 29, 2016Publication date: January 24, 2019Applicant: CYTEC INDUSTRIES INC.Inventors: Junjie Jeffrey SANG, Fiorenzo LENZI, Jonathan Edward MEEGAN, Leonard MACADAMS, Yiqiang ZHAO, Dalip Kumar KOHLI
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Publication number: 20180257350Abstract: A composite material having at least two layers of reinforcing fibers impregnated with a curable resin; an interlaminar region formed between adjacent layers of reinforcing fibers; and a combination of polymeric toughening particles and fire-retardant particles in the interlaminar region.Type: ApplicationFiled: March 6, 2018Publication date: September 13, 2018Applicant: Cytec Industries Inc.Inventors: Fiorenzo LENZI, Carmelo Luca RESTUCCIA
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Patent number: 9908298Abstract: A curable composite material that may be used in applications where both high mechanical performance and high electrical conductivity are required. The curable composite material includes two or more layers of reinforcement fibers that have been infused or impregnated with a curable matrix resin and an interlaminar region containing carbon nanomaterials, e.g. carbon nanotubes, and insoluble polymeric toughening particles. The carbon nanomaterials are significantly smaller in size as compared to the polymeric toughening particles. The polymeric toughening particles are substantially insoluble in the matrix resin upon curing of the composite material, and remain as discreet particles at the interlaminar region after curing. Methods for fabricating curable composite materials and cured composite structures are also disclosed.Type: GrantFiled: December 4, 2014Date of Patent: March 6, 2018Assignee: CYTEC INDUSTRIES INC.Inventors: Carmelo Luca Restuccia, Fiorenzo Lenzi, Emiliano Frulloni
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Publication number: 20180029686Abstract: A composite material that includes a layer of reinforcing fibres impregnated with a curable resin matrix and a plurality of electrically conductive composite particles positioned adjacent or in proximity to the reinforcing fibres. Each of the electrically conductive composite particles is composed of a conductive component and a polymeric component, wherein the polymeric component includes one or more polymers that are initially in a solid phase and are substantially insoluble in the curable resin, but is able to undergo at least partial phase transition to a fluid phase during a curing cycle of the composite material.Type: ApplicationFiled: August 1, 2017Publication date: February 1, 2018Applicant: CYTEC TECHNOLOGY CORP.Inventors: Carmelo Luca Restuccia, Emiliano Frulloni, Fiorenzo Lenzi
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Publication number: 20170301428Abstract: A process for the production of a composition comprising one or more conductive nano-filler(s), one or more polyarylethersulphone thermoplastic polymer(s) (A), one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor, wherein said process comprises mixing or dispersing a first composition comprising one or more conductive nano-filler(s) and one or more polyarylethersulphone thermoplastic polymer(s) (A) with or into one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor.Type: ApplicationFiled: March 28, 2017Publication date: October 19, 2017Applicant: CYTEC TECHNOLOGY CORP.Inventors: Carmelo Luca Restuccia, Fiorenzo Lenzi, Emiliano Frulloni, Natalie Denise Jordan, Mark Edward Harriman
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Patent number: 9640297Abstract: A process for the production of a composition comprising one or more conductive nano-filler(s), one or more polyarylethersulphone thermoplastic polymer(s) (A), one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor, wherein said process comprises mixing or dispersing a first composition comprising one or more conductive nano-filler(s) and one or more polyarylethersulphone thermoplastic polymer(s) (A) with or into one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor.Type: GrantFiled: December 19, 2012Date of Patent: May 2, 2017Assignee: CYTEC TECHNOLOGY CORP.Inventors: Carmelo Luca Restuccia, Fiorenzo Lenzi, Emiliano Frulloni, Natalie Denise Jordan, Mark Edward Harriman