公开(公告)号：US12077642B2

公开(公告)日：2024-09-03

申请号：US17059804

申请日：2019-05-31

Applicant: VIRGINIA COMMONWEALTH UNIVERSITY

Inventor： Massimo Bertino ,  Sylwia Czlonka

IPC: C08J9/28 ,  B29C48/00 ,  B33Y70/00 ,  C08G8/22 ,  C08G18/18 ,  C08G18/30 ,  C08G18/64 ,  C08G18/79 ,  C08J5/04 ,  C08J9/00 ,  C08J9/35 ,  C08L61/12 ,  C08L75/02 ,  B29K75/00 ,  B29K105/00 ,  B29K105/16 ,  B29K401/00 ,  B29K477/00 ,  B29K511/10

CPC classification number: C08J5/045 ,  B29C48/022 ,  B33Y70/00 ,  C08G8/22 ,  C08G18/18 ,  C08G18/305 ,  C08G18/6492 ,  C08G18/792 ,  C08J9/0061 ,  C08J9/0085 ,  C08J9/0095 ,  C08J9/28 ,  C08J9/35 ,  C08L61/12 ,  C08L75/02 ,  B29K2075/00 ,  B29K2105/0061 ,  B29K2105/16 ,  B29K2401/00 ,  B29K2477/10 ,  B29K2511/10 ,  C08G2110/0066 ,  C08G2110/0083 ,  C08G2110/0091 ,  C08J2205/026 ,  C08J2361/10 ,  C08J2375/02 ,  C08J2375/04 ,  C08J2401/02 ,  C08J2497/02

Abstract: Polymeric aerogels, articles made from the polymeric aerogels and methods of making the polymeric aerogels are provided. The aerogels are made e.g. from crosslinkable monomers such as isocyanate monomers or phenolic monomers and a filler comprising crosslinkable hydroxyl groups. The filler may be natural (e.g. wood flour) or synthetic. The aerogels and products made therefrom exhibit low thermal conductivity and are mechanically strong. Due to their physical properties, these materials are used as e.g. building envelope components, such as walls, roofs and frames, to improve the thermal performance thereof, and may be used in a variety of other applications such as sound and insulation barriers in mechanical equipment, cryogenic containers, etc.

公开(公告)号：US10414894B2

公开(公告)日：2019-09-17

申请号：US15500376

申请日：2015-07-31

Applicant: Virginia Commonwealth University

Inventor： Massimo Bertino

IPC: C08J9/28 ,  B01J3/00 ,  C01B33/158 ,  B01J13/00 ,  C08L33/08

Abstract: A method of synthesizing aerogels and cross-linked aerogels in a single step and in a single pot without requiring any solvent exchange is described. Porous matrices are synthesized through a modification of hydrolysis condensation of alkoxides in which addition of water is minimized. The reaction occurs in an ethanol-water azeotrope mixture; the water in the azeotrope slowly hydrolyzes the alkoxide. Additionally, after gelation, the porous matrix is dried in supercritical ethanol rather than liquid CO2, which allows for elimination of solvent exchange steps. These modifications allow for the preparation of aerogel monoliths in any size in one step and in one pot and much faster than conventional procedures. In addition, the method provides for custom aerogel parts with large dimensions, as well as high volume fabrication of aerogels. The custom aerogel parts may be used in a variety of thermal insulation applications.

公开(公告)号：US20170218160A1

公开(公告)日：2017-08-03

申请号：US15500376

申请日：2015-07-31

Applicant: Massimo BERTINO ,  Virginia Commonwealth University

Inventor： Massimo Bertino

IPC: C08J9/28 ,  C01B33/158 ,  B01J13/00

CPC classification number: C08J9/28 ,  B01J13/0091 ,  C01B33/1585 ,  C08J9/286 ,  C08J2201/022 ,  C08J2201/026 ,  C08J2201/0522 ,  C08J2201/0524 ,  C08J2205/026 ,  C08J2205/042 ,  C08J2333/08 ,  C08J2383/06 ,  C08L33/08 ,  Y02P20/544

Abstract: A method of synthesizing aerogels and cross-linked aerogels in a single step and in a single pot without requiring any solvent exchange is described. Porous matrices are synthesized through a modification of hydrolysis condensation of alkoxides in which addition of water is minimized. The reaction occurs in an ethanol-water azeotrope mixture; the water in the azeotrope slowly hydrolyzes the alkoxide. Additionally, after gelation, the porous matrix is dried in supercritical ethanol rather than liquid CO2, which allows for elimination of solvent exchange steps. These modifications allow for the preparation of aerogel monoliths in any size in one step and in one pot and much faster than conventional procedures. In addition, the method provides for custom aerogel parts with large dimensions, as well as high volume fabrication of aerogels. The custom aerogel parts may be used in a variety of thermal insulation applications.

公开(公告)号：US11654409B2

公开(公告)日：2023-05-23

申请号：US16939769

申请日：2020-07-27

Applicant: VIRGINIA COMMONWEALTH UNIVERSITY ,  QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT

Inventor： Massimo Bertino ,  Lauren White ,  Dalton Echard ,  Tyler Selden

IPC: B01J13/00 ,  C08J3/075 ,  C01B33/158 ,  C08G77/388

CPC classification number: B01J13/0091 ,  C01B33/1585 ,  C08G77/388 ,  C08J3/075 ,  C01P2006/60 ,  C08J2205/026 ,  C08J2333/02 ,  C08J2383/04 ,  C08J2383/08

Abstract: A method of synthesizing aerogels and cross-linked aerogels are described that incorporate freeze-drying in lieu of super-critical solvent drying. Advantages over supercritical drying include a reduction in hazard risks posed by drying at supercritical conditions as well as the ability to up-scale the process to accommodate large pieces of material without introducing risk. In addition, inexpensive and more sophisticated mold technologies, which are not impervious to super-critical conditions, can be used to produce aerogel materials according to the freeze-drying method of the invention. This introduces a level of freedom never before available for the production of aerogel components.

公开(公告)号：US11046830B2

公开(公告)日：2021-06-29

申请号：US16375904

申请日：2019-04-05

Applicant: Virginia Commonwealth University

Inventor： Massimo Bertino

IPC: B01J13/00 ,  C01B33/158 ,  C08J9/28 ,  C08L33/08

Abstract: A method of synthesizing aerogels and cross-linked aerogels in a single step and in a single pot without requiring any solvent exchange is described. Porous matrices are synthesized through a modification of hydrolysis condensation of alkoxides in which addition of water is minimized. The reaction occurs in an ethanol-water azeotrope mixture; the water in the azeotrope slowly hydrolyzes the alkoxide. Additionally, after gelation, the porous matrix is dried in supercritical ethanol rather than liquid CO2, which allows for elimination of solvent exchange steps. These modifications allow for the preparation of aerogel monoliths in any size in one step and in one pot and much faster than conventional procedures. In addition, the method provides for custom aerogel parts with large dimensions, as well as high volume fabrication of aerogels. The custom aerogel parts may be used in a variety of thermal insulation applications.

公开(公告)号：US20190233607A1

公开(公告)日：2019-08-01

申请号：US16375904

申请日：2019-04-05

Applicant: Virginia Commonwealth University

Inventor： Massimo Bertino

IPC: C08J9/28 ,  C01B33/158 ,  B01J13/00

CPC classification number: C08J9/28 ,  B01J13/0091 ,  C01B33/1585 ,  C08J9/286 ,  C08J2201/022 ,  C08J2201/026 ,  C08J2201/0522 ,  C08J2201/0524 ,  C08J2205/026 ,  C08J2205/042 ,  C08J2333/08 ,  C08J2383/06 ,  C08L33/08 ,  Y02P20/544

Abstract: A method of synthesizing aerogels and cross-linked aerogels in a single step and in a single pot without requiring any solvent exchange is described. Porous matrices are synthesized through a modification of hydrolysis condensation of alkoxides in which addition of water is minimized. The reaction occurs in an ethanol-water azeotrope mixture; the water in the azeotrope slowly hydrolyzes the alkoxide. Additionally, after gelation, the porous matrix is dried in supercritical ethanol rather than liquid CO2, which allows for elimination of solvent exchange steps. These modifications allow for the preparation of aerogel monoliths in any size in one step and in one pot and much faster than conventional procedures. In addition, the method provides for custom aerogel parts with large dimensions, as well as high volume fabrication of aerogels. The custom aerogel parts may be used in a variety of thermal insulation applications.

公开(公告)号：US09773594B2

公开(公告)日：2017-09-26

申请号：US14370138

申请日：2013-01-04

Applicant: Virginia Commonwealth University

Inventor： Everett E. Carpenter ,  Zachary J. Huba ,  Kyler J. Carroll ,  Ahmed Farghaly ,  Shiv N. Khanna ,  Meichun Qian ,  Massimo Bertino

IPC: H01F1/11 ,  C01B31/30 ,  H01F1/00 ,  B82Y25/00

CPC classification number: H01F1/11 ,  B82Y25/00 ,  C01B32/914 ,  H01F1/0063

Abstract: Continuous flow synthetic methods are used to make single phase magnetic metal alloy nanoparticles that do not contain rare earth metals. Soft and hard magnets made from the magnetic nanoparticles are used for a variety of purposes, e.g. in electric motors, communication devices, etc.