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公开(公告)号：US11517871B2
公开(公告)日：2022-12-06
申请号：US17199876
申请日：2021-03-12
Applicant: President and Fellows of Harvard College , BASF SE
Inventor： Rupa Hiremath Darji , James Newhouse , Vinothan N. Manoharan , Victoria Hwang , Anna B. Stephenson
Abstract: Porous metal oxide microspheres are prepared via a process comprising forming a liquid dispersion of polymer nanoparticles and a metal oxide; forming liquid droplets of the dispersion; drying the droplets to provide polymer template microspheres comprising polymer nanospheres; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.
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公开(公告)号：US11578219B2
公开(公告)日：2023-02-14
申请号：US16817179
申请日：2020-03-12
Applicant: BASF SE
Inventor： Nicholas A. Foley , Christopher J. Valovic , Rupa Hiremath Darji
Abstract: Colored coating compositions comprising a polymer binder and a sphere selected from porous metal oxide spheres formed from metal oxide particles and having an average porosity of from 0.10 to 0.90; polymer spheres formed from a multimodal distribution of polymer particles; or mixtures thereof, wherein the colored coating composition when dried, exhibits visible light absorbance at a wavelength range from 400 nm to 800 nm. The sphere has an average particle size diameter of from 1 micron to 5 microns, or from 3 microns to 5 microns and exhibits a structural color which may be angle-dependent or angle-independent.
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公开(公告)号：US11471849B2
公开(公告)日：2022-10-18
申请号：US17200279
申请日：2021-03-12
Applicant: President and Fellows of Harvard College , BASF SE
Inventor： Rupa Hiremath Darji , James Newhouse , Vinothan N. Manoharan , Victoria Hwang , Anna B. Stephenson
Abstract: Porous metal oxide microspheres are prepared via a process comprising forming a liquid solution or dispersion of polydisperse polymer nanoparticles and a metal oxide; forming liquid droplets from the solution or dispersion; drying the liquid droplets to provide polymer template microspheres comprising polymer nanospheres and metal oxide; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.
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公开(公告)号：US20190076809A1
公开(公告)日：2019-03-14
申请号：US16126338
申请日：2018-09-10
Applicant: President and Fellows of Harvard College , BASF SE
Inventor： Rupa Hiremath Darji , James Newhouse , Vinothan N. Manoharan , Victoria Hwang , Anna B. Stephenson
Abstract: Porous metal oxide microspheres are prepared via a process comprising forming a liquid dispersion of polymer nanoparticles and a metal oxide; forming liquid droplets of the dispersion; drying the droplets to provide polymer template microspheres comprising polymer nanospheres; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.
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公开(公告)号：US20230102667A1
公开(公告)日：2023-03-30
申请号：US18072371
申请日：2022-11-30
Applicant: President and Fellows of Harvard College , BASF SE
Inventor： Rupa Hiremath Darji , James Newhouse , Vinothan N. Manoharan , Victoria Hwang , Anna B. Stephenson
Abstract: Porous metal oxide microspheres are prepared via a process comprising forming a liquid dispersion of polymer nanoparticles and a metal oxide; forming liquid droplets of the dispersion; drying the droplets to provide polymer template microspheres comprising polymer nanospheres; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.
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Patent Agency Ranking
公开(公告)号：US20210220792A1
公开(公告)日：2021-07-22
申请号：US17200279
申请日：2021-03-12
Applicant: President and Fellows of Harvard College , BASF SE
Inventor： Rupa Hiremath Darji , James Newhouse , Vinothan N. Manoharan , Victoria Hwang , Anna B. Stephenson
Abstract: Porous metal oxide microspheres are prepared via a process comprising forming a liquid solution or dispersion of polydisperse polymer nanoparticles and a metal oxide; forming liquid droplets from the solution or dispersion; drying the liquid droplets to provide polymer template microspheres comprising polymer nanospheres and metal oxide; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.
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7.发明申请公开(公告)号：US20190076810A1
公开(公告)日：2019-03-14
申请号：US16126346
申请日：2018-09-10
Applicant: President and Fellows of Harvard College , BASF SE
Inventor： Rupa Hiremath Darji , James Newhouse , Vinothan N. Manoharan , Victoria Hwang , Anna B. Stephenson
Abstract: Porous metal oxide microspheres are prepared via a process comprising forming a liquid solution or dispersion of polydisperse polymer nanoparticles and a metal oxide; forming liquid droplets from the solution or dispersion; drying the liquid droplets to provide polymer template microspheres comprising polymer nanospheres and metal oxide; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.
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公开(公告)号：US12286380B2
公开(公告)日：2025-04-29
申请号：US17605482
申请日：2020-03-09
Applicant: BASF SE
Inventor： Gerard R. Finnegan , Thomas F. Thompson , Juan Carlos Capote , Rupa Hiremath Darji
IPC: C04B38/00 , C04B35/626 , C04B38/06
Abstract: Use of porous metal oxide microspheres as light stabilizers for shaped artificial polymer articles, wherein the porous metal oxide microspheres are prepared via a process comprising forming a liquid dispersion of polymer nanoparticles and a metal oxide; forming liquid droplets of the dispersion; drying the droplets to provide polymer template microspheres comprising polymer nanospheres; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres.
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9.发明公开公开(公告)号：US20240054254A1
公开(公告)日：2024-02-15
申请号：US18278535
申请日：2022-03-01
Applicant: BASF SE
Inventor： Keith Task , Rupa Hiremath Darji , Michael David Burke , Liangliang Qu
CPC classification number: G06F30/12 , G06F30/25 , B82Y35/00 , G06F2111/16
Abstract: The following relates generally to user selection of parameters to approximate desired properties of light scattering. More specifically, in some embodiments, a graphical user interface (GUI) is provided. In some embodiments, in a forward configuration, the GUI accepts an input parameter that is a physical property or optical property of a nanoparticle material (e.g., nanoparticle size, shape, etc.), and outputs an optical effect of the nanoparticle material (e.g., a color, a graph of a reflectance fraction vs. wavelength, etc.); whereas, in an inverse configuration, the GUI accepts the optical effect as the input, and outputs a physical property or optical property of the nanoparticle material.
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10.发明授权公开(公告)号：US11185835B2
公开(公告)日：2021-11-30
申请号：US16126346
申请日：2018-09-10
Applicant: President and Fellows of Harvard College , BASF SE
Inventor： Rupa Hiremath Darji , James Newhouse , Vinothan N. Manoharan , Victoria Hwang , Anna B. Stephenson
Abstract: Porous metal oxide microspheres are prepared via a process comprising forming a liquid solution or dispersion of polydisperse polymer nanoparticles and a metal oxide; forming liquid droplets from the solution or dispersion; drying the liquid droplets to provide polymer template microspheres comprising polymer nanospheres and metal oxide; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.
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