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公开(公告)号：US10717824B2
公开(公告)日：2020-07-21
申请号：US16232688
申请日：2018-12-26
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED , XEROX CORPORATION
Inventor： Mahati Chintapalli , Barkev Keoshkerian , Gabriel Iftime , Quentin Van Overmeere
IPC: C08J9/28 , C08G77/442 , C01B33/158 , C08F2/48 , C08L33/08 , C08J11/22 , C08J3/24 , C08K5/37 , C08L33/10 , C08F2/38 , C08J3/075 , C08F220/14 , C08F220/18 , C08F212/36 , C08F222/10
Abstract: A method of producing a polymer aerogel can include dissolving gel precursors consisting of radical polymerizable monomers and crosslinkers, radical initiators, and a chain transfer agent (CTA) in a reaction solvent, wherein the monomers and cross-linkers produce stiff homopolymers; placing the gel precursors into a substrate; polymerizing the gel on the substrate; optionally removing the wet gel from the mold; optionally performing at least one solvent exchange on the gel; and removing the reaction solvent.
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公开(公告)号：US20190135984A1
公开(公告)日：2019-05-09
申请号：US16232688
申请日：2018-12-26
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED , XEROX CORPORATION
Inventor： Mahati Chintapalli , Barkev Keoshkerian , Gabriel Iftime , Quentin Van Overmeere
IPC: C08G77/442 , C08L33/10 , C08K5/37 , C08J3/24 , C01B33/158 , C08J9/28 , C08L33/08 , C08F2/48 , C08J11/22
Abstract: A method of producing a polymer aerogel can include dissolving gel precursors consisting of radical polymerizable monomers and crosslinkers, radical initiators, and a chain transfer agent (CTA) in a reaction solvent, wherein the monomers and cross-linkers produce stiff homopolymers; placing the gel precursors into a substrate; polymerizing the gel on the substrate; optionally removing the wet gel from the mold; optionally performing at least one solvent exchange on the gel; and removing the reaction solvent.
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公开(公告)号：US11760824B2
公开(公告)日：2023-09-19
申请号：US17069611
申请日：2020-10-13
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED , XEROX CORPORATION
Inventor： Mahati Chintapalli , Barkev Keoshkerian , Alec Ho , Gabriel Iftime , Quentin Van Overmeere , Eli Bulger
IPC: C08F293/00 , C08J9/00 , B01J13/00 , C08J3/24
CPC classification number: C08F293/005 , B01J13/0065 , B01J13/0091 , C08J3/24 , C08F2438/02
Abstract: A dried polymer aerogel has a Brunauer-Emmett Teller (BET) surface area over 100 m2/g, porosity of greater than 10%, visible transparency greater than 20%, color rendering index of over 20%, and average pore size of less than 100 nm.
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公开(公告)号：US11067514B2
公开(公告)日：2021-07-20
申请号：US15849096
申请日：2017-12-20
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED , XEROX CORPORATION
Inventor： Gabriel Iftime , Jessica Louis Baker Rivest , George A. Gibson , Eric Cocker , Mahati Chintapalli , Quentin Van Overmeere
Abstract: A sensor has a transparent polymer aerogel, and sensing materials dispersed into the transparent, polymer aerogel, where the sensing materials change color in response to environmental conditions. A method of forming a sensor includes providing a substrate, forming a polymer aerogel layer on the substrate, and infusing the polymer aerogel layer with sensing molecules.
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公开(公告)号：US20190106543A1
公开(公告)日：2019-04-11
申请号：US15728385
申请日：2017-10-09
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED , XEROX CORPORATION
Inventor： Mahati Chintapalli , Barkev Keoshkerian , Gabriel Iftime , Quentin Van Overmeere
IPC: C08G77/442 , C01B33/158 , C08F2/48 , C08L33/08 , C08L33/10 , C08J11/22 , C08J3/24 , C08K5/37 , C08J9/28
Abstract: A method of producing a transparent polymer aerogel can include dissolving gel precursors consisting of radical polymerizable monomers and crosslinkers, radical initiators, and a chain transfer agent (CTA) in a reaction solvent, placing the gel precursors into a substrate, polymerizing the gel on the substrate, optionally removing the wet gel from the mold, optionally performing at least one solvent exchange on the gel, and drying the solvent-exchanged gel.
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Patent Agency Ranking
公开(公告)号：US12011871B2
公开(公告)日：2024-06-18
申请号：US17951259
申请日：2022-09-23
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
Inventor： Junhua Wei , Gabriel Iftime , Jessica Louis Baker Rivest , Anne Plochowietz
CPC classification number: B29C64/10 , A61L27/56 , B05D7/16 , B33Y10/00 , B33Y70/00 , B33Y70/10 , B82Y5/00
Abstract: A method of forming a porous structure involves mixing a solvent with a curable material which disperses in the solvent such that the mixture has greater than 50% solvent content. The mixture is deposited on a substrate and viscosity of the mixture is increased. The curable material in the mixture is cured while a shape of the curable material is maintained by the solvent. After curing, the solvent is removed from the structure.
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公开(公告)号：US11905387B2
公开(公告)日：2024-02-20
申请号：US17108170
申请日：2020-12-01
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
Inventor： Junhua Wei , Gabriel Iftime , David Mathew Johnson , Jessica Louis Baker Rivest
IPC: C08K3/04 , C01B32/198 , C08G59/50 , C08L63/00 , C08J5/18 , C08L33/10 , C07D303/24 , C07D493/22 , C07C69/54 , C08L33/08 , C08J5/00 , B29C64/00 , B33Y70/10
CPC classification number: C08K3/042 , B29C64/00 , B33Y70/10 , C01B32/198 , C07C69/54 , C07D303/24 , C07D493/22 , C08G59/50 , C08J5/005 , C08J5/18 , C08L33/08 , C08L33/10 , C08L63/00 , C08K3/042 , C08L63/00
Abstract: A method of producing functionalized graphene oxide includes mixing graphene oxide with a reactive monomer containing at least one epoxy functional group and a secondary functional group that is selected from vinyl, acrylate, methacrylate, and epoxy to form a mixture, adding an activation agent, heating and stirring the mixture, cooling the mixture, separating the particles from the mixture, and drying the particles to produce functionalized graphene oxide. A method of manufacturing a cured polymer resin using functionalized graphene oxide includes mixing functionalized graphene oxide with a resin precursor to produce a functionalized graphene mixture, wherein the particles contain functional groups nearly identical to, or identical to, a polymer precursor material, adding a curing initiator to the functionalized graphene mixture and mixing to produce a formulation, depositing the formulation into a desired shape, and curing the formulation to form a polymer having functionalized graphene oxide groups in a base polymer material.
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公开(公告)号：US11612852B2
公开(公告)日：2023-03-28
申请号：US17211588
申请日：2021-03-24
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
Inventor： Mahati Chintapalli , Stephen Meckler , Gabriel Iftime , Rahul Pandey , Mary Louie , Eugene Shin Ming Beh
Abstract: A porous polymer aerogel, wherein the aerogel has greater than 5 wt % of amine containing vinyl monomers integrated into a polymer backbone. A method of fabrication of a porous polymer aerogel amine material, includes preparing a solution comprising at least a solvent, amine monomers having protected amino groups, one or more crosslinkers, one or more radical initiators, and a nitroxide mediator, removing oxygen from the solution, heating the solution to promote polymerization and to produce a polymerized material, performing solvent exchange with the polymerized material, causing a deprotection reaction in the polymerized material to remove groups protecting the amino groups, soaking and rinsing the material to remove excess reagents and any byproducts of the deprotection reaction, and drying the material to produce the amine sorbent. A system to separate CO2 from other gases, comprising a polymer porous aerogel sorbent having greater than 5 wt % of amine containing vinyl monomers integrated into a polymer backbone.
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公开(公告)号：US11585771B2
公开(公告)日：2023-02-21
申请号：US17677716
申请日：2022-02-22
Applicant: Palo Alto Research Center Incorporated
Inventor： Gabriel Iftime , Clinton Smith , David Eric Schwartz , Yong Zhang , Vedasri Vedharathinam
IPC: G01N27/04 , B01J20/20 , B01J20/02 , B01J20/32 , G01N33/00 , G01N27/12 , B82Y30/00 , B82Y40/00 , B82Y15/00 , C22C26/00 , B22F1/102
Abstract: Disclosed herein are methods of producing metal nanoparticle-decorated carbon nanotubes. The methods include forming a reaction mixture by combining a first solution with a second solution, wherein the first solution comprises polymer-coated metal nanoparticles comprising metallic nanoparticles coated with a polymer, and wherein the second solution comprises carbon nanotubes. The methods also include heating the reaction mixture to a temperature greater than a glass transition temperature of the polymer for a time sufficient to cause the polymer-coated metal nanoparticles to bind to the carbon nanotubes forming the metal nanoparticle-decorated carbon nanotubes.
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公开(公告)号：US20210260793A1
公开(公告)日：2021-08-26
申请号：US17080998
申请日：2020-10-27
Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
Inventor： Gabriel Iftime , Junhua Wei , Jerome Unidad , Rahul Pandey , Sean Roark Garner
Abstract: A method of recycling fiber reinforced polymers includes grinding used fiber reinforced polymers material to produce ground particles, functionalizing the ground particles to produce functionalized particles, dispersing the functionalized particles into a base resin, dispensing the resin with functionalized particles into one or more layers of continuous fiber mats, molding the resin with functionalized particles and the continuous fiber mats into a form of a desired part, and curing the form to produce the part. The used fiber reinforced polymer materials may be carbon fiber reinforced polymers or glass fiber reinforced polymer materials.
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