-
公开(公告)号：US20210197161A1
公开(公告)日：2021-07-01
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.
-
12.发明申请公开(公告)号：US20230095058A1
公开(公告)日：2023-03-30
申请号：US17908600
申请日：2021-03-02
Applicant: BASF SE , PRESIDENT AND FELLOWS OF HARVARD COLLEGE
Inventor： Keith Task , Rupa Hiremath Darji , Vinothan Manoharan , Anna B. Stephenson , Victoria Hwang , Ming Xiao
Abstract: Exemplary embodiments relate to techniques for determining structural color from parameters of an array of nanopartides. The techniques include inputting structural and optical parameters and performing a probabilistic simulation to determine the structural color. An evolutionary optimization may be performed to determine parameters of the array of nanoparticles according to desired properties of structural color. The evolutionary optimization may employ the probabilistic simulation and further adjust one or more parameters of the array to approximate the desired properties of the structural color. Based on applying the probabilistic simulation, the technique may generate an output describing a value, or a range of values, for the one or more parameters of the array of nanoparticles that are selected to approximate the desired properties of the structural color.
-
Patent Agency Ranking
公开(公告)号：US20230031067A1
公开(公告)日：2023-02-02
申请号：US17963402
申请日：2022-10-11
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.
-
公开(公告)号：US11530325B2
公开(公告)日：2022-12-20
申请号：US16817173
申请日：2020-03-12
Applicant: BASF SE
Inventor： Nicholas A. Foley , Christopher J. Valovic , Jack Royce Johnson , Brandon C. Achord , Jeremy J. Funk , Rupa Hiremath Darji
Abstract: Coating compositions comprising a polymer binder and a sphere selected from porous metal oxide spheres formed from metal oxide particles and having, e.g., an average porosity of from 0.10 to 0.90; polymer spheres formed from a multimodal distribution of polymer particles; or mixtures thereof, are described herein. The sphere enhances the reflective characteristics of the coating compositions with respect to electromagnetic radiation. In particular, the coating compositions when dried, can exhibit UV reflectance, visible light reflectance, IR reflectance, or a combination thereof.
-
公开(公告)号：US11179694B2
公开(公告)日：2021-11-23
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.
-
公开(公告)号：US20200291250A1
公开(公告)日：2020-09-17
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.
-
公开(公告)号：US20200291241A1
公开(公告)日：2020-09-17
申请号：US16817173
申请日：2020-03-12
Applicant: BASF SE
Inventor： Nicholas A. Foley , Christopher J. Valovic , Jack Royce Johnson , Brandon C. Achord , Jeremy J. Funk , Rupa Hiremath Darji
Abstract: Coating compositions comprising a polymer binder and a sphere selected from porous metal oxide spheres formed from metal oxide particles and having, e.g., an average porosity of from 0.10 to 0.90; polymer spheres formed from a multimodal distribution of polymer particles; or mixtures thereof, are described herein. The sphere enhances the reflective characteristics of the coating compositions with respect to electromagnetic radiation. In particular, the coating compositions when dried, can exhibit UV reflectance, visible light reflectance, IR reflectance, or a combination thereof.
-
-
-
-
-
-
Search Results
17
records
(took 0.017 seconds)
