公开(公告)号：US20220259399A1

公开(公告)日：2022-08-18

申请号：US17735321

申请日：2022-05-03

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： STEPHEN MECKLER ,  MAHATI CHINTAPALLI ,  GABRIEL IFTIME ,  ELI BULGER

IPC: C08J9/28

Abstract: A method of forming a porous, polymer aerogel, includes producing a miscible formulation of at least one of monomers, oligomers, crosslinkers and prepolymers, polymerizing the miscible formulation to form a multiphasic gel, wherein phases are continuous and the multiphasic gel has at least one depolymerizable domain and at least one non-depolymerizable domain, and the at least one depolymerizable domain is chemically bonded to the at least one non-depolymerizable domain, and removing the depolymerizable domain or domains from the multiphasic gel to produce a porous aerogel with a color rendering index of at least 25. A method of forming a porous, polymer aerogel, including producing a miscible formulation of at least one monomer, oligomer or crosslinker, and a prepolymer having at least one reactive functional group, polymerizing the miscible formulation to form a multiphasic gel, wherein the prepolymer having at least one reactive functional group is chemically bonded to a polymer that results from the polymerization of the at least one monomer or oligomer, and phases are continuous and the multiphasic gel has at least one depolymerizable domain bonded to at least one non-depolymerizable domain, and placing the multiphasic gel in a depolymerization solution having a depolymerization solvent to chemically degrade the depolymerizable domain into smaller oligomers and monomers, removing the depolymerization solvent to produce a porous aerogel with a color rendering index of at least 25.

公开(公告)号：US20210309822A1

公开(公告)日：2021-10-07

申请号：US17245418

申请日：2021-04-30

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： ELI BULGER ,  MAHATI CHINTAPALLI ,  GABRIEL IFTIME ,  QUENTIN VAN OVERMEERE ,  JESSICA LOUIS BAKER RIVEST ,  RAVI NEELAKANTAN ,  STEPHEN MECKLER

IPC: C08J9/00 ,  C08J9/28 ,  C08J3/24

Abstract: A method of producing a polymer aerogel includes dissolving precursors into a solvent, wherein the precursors include monomers, crosslinkers, a controlling agent and an initiator to form a precursor solution, wherein at least one of the monomers or at least one of the crosslinkers has a refractive index of 1.5 or lower, polymerizing the precursor solution to form a gel polymer, and removing the solvent from the gel polymer to produce the polymer aerogel. A method of producing a polymer aerogel include dissolving precursors into a solvent, wherein the precursors include monomers, crosslinkers, a controlling agent and an initiator to form a precursor solution, polymerizing the precursor solution to form a gel polymer, removing the solvent from the gel polymer to produce the polymer aerogel, and reducing a refractive index of one of either the gel polymer or the polymer aerogel.

公开(公告)号：US20210206939A1

公开(公告)日：2021-07-08

申请号：US16732627

申请日：2020-01-02

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： STEPHEN MECKLER ,  MAHATI CHINTAPALLI ,  GABRIEL IFTIME ,  ELI BULGER

IPC: C08J9/28

Abstract: A porous, polymer aerogel having a pore size distribution with a full-width at half maximum between 0.1 and 10 nanometers, a visible transmittance greater than 30%/3 mm, haze less than 70%/3 mm, and a color rendering index of at least 25. A method of forming a porous, polymer aerogel, includes producing a miscible formulation of at least one of monomers, oligomers, crosslinkers and prepolymers, polymerizing the miscible formulation to form a multiphasic gel, wherein phases are continuous and the multiphasic gel has at least one depolymerizable domain and at least one non-depolymerizable domain, and the at least one depolymerizable domain is chemically bonded to the at least one non-depolymerizable domain, and removing the depolymerizable domain or domains from the multiphasic gel to produce a porous aerogel with a color rendering index of at least 25. A method of forming a porous, polymer aerogel, including producing a miscible formulation of at least one monomer, oligomer or crosslinker, and a prepolymer having at least one reactive functional group, polymerizing the miscible formulation to form a multiphasic gel, wherein the prepolymer having at least one reactive functional group is chemically bonded to a polymer that results from the polymerization of the at least one monomer or oligomer, and phases are continuous and the multiphasic gel has at least one depolymerizable domain bonded to at least one non-depolymerizable domain, and placing the multiphasic gel in a depolymerization solution having a depolymerization solvent to chemically degrade the depolymerizable domain into smaller oligomers and monomers, removing the depolymerization solvent to produce a porous aerogel with a color rendering index of at least 25.