Abstract: A method for preparing a modified cellulose aerogel for glycoprotein separation is provided. In this method, cellulose aerogel is employed as a substrate. The cellulose aerogel is known to have a three-dimensional network structure with extremely high porosity and specific surface area and extremely low density. So, by using the cellulose aerogel as a substrate, it is possible to provide the glycoproteins to be separated with more binding sites. PEI dendrimer has abundant functional groups and can easily be modified. By modifying the cellulose aerogel substrate with the PEI dendrimer, it is possible to improve the density of the phenylboronic acid bound to the substrate, thereby leading to higher affinity toward the glycoproteins to be separated.
Type:
Grant
Filed:
September 9, 2021
Date of Patent:
April 11, 2023
Assignee:
Shaanxi University of Science & Technology
Inventors:
Sufeng Zhang, Xue Yao, Liwei Qian, Chen Hua, Ning Wei, Quansheng Wang
Abstract: A method for preparing a silicate/carbon composite from attapulgite, and use of the silicate/carbon composite are disclosed. The preparation method includes: (1) with attapulgite as a raw material, preparing SiO2 with a special structure; (2) dispersing the prepared SiO2 in water to obtain a suspension, and subjecting the suspension to ultrasonic dispersion; dissolving a metal nitrate in the suspension, adding NH4Cl, and adding ammonia water dropwise to the suspension; and adding sucrose to obtain a suspension; (3) subjecting the suspension to microwave hydrothermal reaction; after the reaction is completed, centrifuging a resulting system; and separating a resulting solid; and (4) subjecting the solid to high-temperature calcination in a muffle furnace, and grinding a resulting product to obtain the silicate/carbon composite, which can be used in photocatalytic ammonia synthesis.
Type:
Grant
Filed:
November 10, 2020
Date of Patent:
April 11, 2023
Assignee:
CHANGZHOU UNIVERSITY
Inventors:
Xiazhang Li, Haiguang Zhang, Xini Chu, Jie Zhu, Xiangyu Yan, Shixiang Zuo, Chao Yao, Wenjie Liu, Huihui Mao
Abstract: To provide a liquid material which can only adjust transparency by applying on a part of a zirconia crown having high transparency, without coloring. The present disclosure provides an opaque imparting liquid used for a prosthesis device cut and machined from a dental zirconia for cutting and machining, comprising; (a) 10 to 39 wt. % of a water-soluble aluminum compound and/or a water-soluble lanthanum compound, (b) 60 to 89 wt. % of water, and (c) 1 to 20 wt. % of an organic solvent.
Abstract: A method for recycling textiles comprising cellulose with the following steps of: optionally disintegrating the textile, Swelling the cellulose, under reducing conditions, wherein at least one reducing agent is present at least during a part of the swelling, and then performing at least one of the following two bleaching steps in any order: i) bleaching the material with oxygen at alkaline conditions with a pH in the range 9-13.5, and ii) bleaching the material with ozone at acid conditions below pH 6. An advantage is that the yield is improved at the same time as excellent decolourization is achieved. If the recycled material is used in viscose manufacture, the risk of clogging nozzles and so on is reduced.
Type:
Grant
Filed:
October 16, 2017
Date of Patent:
April 4, 2023
Assignee:
RE:NEWCELL AB
Inventors:
Christofer Lindgren, Gunnar Henriksson, Mikael Lindström
Abstract: A container and a preparation method thereof are provided. A material forming the container includes at least two types of oxidized nanocelluloses interlaced with each other, the at least two types of oxidized nanocelluloses being configured to have different degrees of expansion after absorbing moisture in a same environment. In a dry condition, the at least two types of oxidized nanocelluloses do not expand, so the structure of the container is relatively dense and the air permeability is poor, which can sufficiently maintain moisture of an article stored in the container. In case the article itself or other reasons cause high humidity, different oxidized nanocelluloses of the container expand after absorbing moisture, so that gaps between different oxidized nanocelluloses becomes larger, and the air permeability of the container becomes better, which can discharge excessive moisture, enabling the container to self-adjust the air permeability based on humidity.
Type:
Grant
Filed:
September 13, 2019
Date of Patent:
March 14, 2023
Assignees:
Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
Abstract: It is an object of the present invention to provide a cellulose-containing composition having excellent coating suitability, a production method thereof, and a film. According to the present invention, provided is a cellulose-containing composition comprising cellulose fibers having a fiber width of 1000 nm or less and protein, wherein the protein includes an enzyme, the content of the protein is 1×10?3 parts by mass or less with respect to 1 part by mass of the cellulose fibers, and when the cellulose-containing composition having a solid concentration of 0.4% by mass is obtained, the viscosity of the cellulose-containing composition measured under conditions of 25° C. and a rotation number of 3 rpm is 10 mPa·s or more and 11000 mPa·s or less.
Abstract: A wax-extender emulsion including a plurality of wax-extender complex particles suspended in water is described. A wax-extender complex includes a wax component, an organic extender component and a surfactant that stabilizes the wax component and the organic extender component collectively to form the wax-extender complex. The wax-extender emulsion comprises from 2 wt % to 30 wt % organic extender. During manufacturing, the organic extender and wax component are emulsified and homogenized together to produce the wax-extender emulsion. The wax-extender emulsion can be co-applied as a mixture with adhesive resin during wood-based composite manufacturing.
Type:
Grant
Filed:
November 29, 2017
Date of Patent:
February 28, 2023
Assignee:
The Williamette Valley Company LLC
Inventors:
Jesse L. Paris, Matthew G. Peterson, James A. Livings, Sudip Chowdhury, Curtis G. Burton
Abstract: An example system for purifying a supply stream including lactose includes a clarification system configured to separate insoluble impurities from the stream to produce a clarified stream. The system includes an adsorption system fluidically coupled to the clarification system. The adsorption system includes an adsorbent resin configured to purify the clarified stream. An example technique for purifying a supply stream including lactose includes separating insoluble impurities from the supply stream to produce a clarified stream and passing the clarified stream over an adsorbent resin to produce a decolorized stream.
Type:
Grant
Filed:
October 12, 2017
Date of Patent:
February 28, 2023
Assignee:
Keller Technologies, Inc.
Inventors:
A. Kent Keller, James P. Mullen, Eric A. Keller
Abstract: A methodology useful for predicting the texture of a heated starch suspension by predicting the storage modulus (G?) of the starch suspension resulting from starch granule swelling during heating has been developed. The methodology is based on the physical properties of the starch granules in the starch suspension and the temperature history of the heated starch suspension.
Abstract: A visible-light-photocatalyzed composite light-transmitting concrete contains several bundles of optical fibers, the optical fibers are coated with a protective layer on their outer surface, the protective layer contains a visible light photocatalyst, and the concrete has several gas-permeable pores. Such concrete is prepared by mixing a visible light photocatalyst and a light-transmitting glue, applying the mixture to the surface of optical fibers to form a protective layer, and using optical fibers in the concrete. The resulting concrete has dual properties of light transmittance and photocatalytic oxidation of gas-phase pollutants under visible light irradiation. The visible-light-photocatalyzed composite light-transmitting concrete significantly breaks through the limitation of photocatalytic concrete to light sources, so that gas-phase pollutants can be removed under visible light irradiation through photocatalysis of light-transmitting concrete.
Type:
Grant
Filed:
March 8, 2022
Date of Patent:
February 21, 2023
Assignee:
Chongqing University
Inventors:
Yuxin Zhang, Xingjian Dai, Yi Wang, Kailin Li, Xiaoying Liu, Xuelei Zhang, Li Feng, Yifan Zhang, Jinsong Rao, Jizhou Duan, Haiyan Li, Zhihao Bao, Yucheng Du, Junshu Wu, Yizhuang Wu, Chenhao Zhao, Jiayi Zhang, Peng Yan, Fan Dong
Abstract: The present invention relates to the field of foam formation and stabilization, particularly foamed construction materials, such as cement. Disclosed are additives suitable to obtain mineral foams when added to the corresponding starting materials. The invention provides a ready-to-use product in the form of a solid particulate composition comprising hydrophobized particles (1) and catalytically active particles (2) as defined in claim 1. The invention further provides for manufacturing methods of such ready-to-use product.
Type:
Grant
Filed:
August 30, 2016
Date of Patent:
February 14, 2023
Inventors:
Urs T. Gonzenbach, Philip Noah Sturzenegger
Abstract: An improved surface material is particularly suited for non-turf baseball field applications such as the pitcher's mound and base paths. The material generally comprises clay, wax, Foots oil and sand and has a putty-like consistency. Cleats can penetrate the material but are not likely to pull it out in clumps upon removal of the cleats. Method for forming the surface includes pre-coating the soil with Foots oil and then spraying an emulsified wax on a surface and mixing it with the surface material.
Abstract: A process is provided for producing a biomass-derived rheology modifier, comprising: providing a pretreated feedstock comprising cellulose-rich solids; refining the cellulose-rich solids in a first high-intensity refining unit, generating refined cellulose solids; gelling the refined cellulose solids in a second high-intensity refining unit, thereby generating gelled cellulose solids; and homogenizing the gelled cellulose solids in a high-shear homogenizer, thereby generating a biomass-derived rheology modifier. The pretreated feedstock may include kraft pulp, sulfite pulp, AVAP® pulp, soda pulp, mechanical pulp, thermomechanical pulp, and/or chemimechanical pulp, derived from wood or lignocellulosic biomass. The pretreated feedstock may be GP3+® pulp, obtained from steam or hot-water extraction of lignocellulosic biomass. These rheology modifiers may be utilized in a wide variety of applications, including water-based or oil-based hydraulic fracturing fluid formulations, as gelling agents.
Abstract: The invention discloses a phosphorus-doped tubular carbon nitride micro-nano material and application thereof in waste gas treatment. Melamine is partially hydrolyzed into cyanuric acid through a phosphorous acid-assisted hydrothermal method to form a melamine-cyanuric acid super molecular precursor; the center of the precursor starts to be pyrolyzed under heating calcination, and thus phosphorus-doped tubular carbon nitride is obtained; the phosphorus-doped tubular carbon nitride and sodium borohydride are mixed and subjected to low-temperature calcination in an inert gas atmosphere, and defect-modified phosphorus-doped tubular carbon nitride is obtained.
Abstract: An adhesive for heat press molding contains a reaction product obtained by heat treatment on a mixture containing a polycarboxylic acid and a saccharide.
Abstract: A composition comprising nanocellulose is disclosed, wherein the nanocellulose contains very low or essentially no sulfur content. The nanocellulose may be in the form of cellulose nanocrystals, cellulose nanofibrils, or both. The nanocellulose is characterized by a crystallinity of at least 80%, an onset of thermal decomposition of 300° F. or higher, and a low light transmittance over the range 400-700 nm. Other variations provide a composition comprising lignin-coated hydrophobic nanocellulose, wherein the nanocellulose contains very low or essentially no sulfur content. Some variations provide a composition comprising nanocellulose, wherein the nanocellulose contains about 0.1 wt % equivalent sulfur content, or less, as SO4 groups chemically or physically bound to the nanocellulose. In some embodiments, the nanocellulose contains essentially no hydrogen atoms (apart from hydrogen structurally contained in nanocellulose itself) bound to the nanocellulose.
Abstract: An organic slurry for use in wood-based composites is described herein. In one aspect, the organic slurry may include water, a lignin material insoluble in the water, such as dewatered kraft lignin, and a defoamer. During manufacturing, the water, lignin material and defoamer may be combined and mixed together in a vessel to produce the organic slurry. In one aspect, the defoamer may include a water-based defoamer, a silicone-based defoamer, a silicone-free defoamer, an oil-based defoamer, a polymer-based defoamer, or mixtures thereof. The organic slurry may have a pH less than neutral.
Type:
Grant
Filed:
March 14, 2022
Date of Patent:
January 31, 2023
Assignee:
The Williamette Valley Company LLC
Inventors:
Jesse L. Paris, Matthew G. Peterson, James A. Livings, Sudip Chowdhuruy, Curtis G. Burton
Abstract: A surface-treating agent including a perfluoro(poly)ether group-containing silane compound and a perfluoro(poly)ether group-containing compound. The perfluoro(poly)ether group-containing compound contains a radical capturing group or a UV absorbing group in the molecule.
Abstract: The present invention concerns a suspension of a polymer comprising, in addition to said polymer, a) a liquid medium; b) a monovalent cation salt; c) an alginate.
Abstract: The present invention relates to a film for blocking ultraviolet rays that has excellent light resistance, thus exhibiting stable UV blocking performance for a long time, and has a low haze value, and thus is suitable for protecting an organic light emitting device and the like from the external light source.
Type:
Grant
Filed:
June 12, 2019
Date of Patent:
January 10, 2023
Assignee:
LG CHEM, LTD.
Inventors:
Kwangseok Seo, Heon Kim, Jinseok Byun, Yeongrae Chang