60 results about "CELLULOSE POLYMERS" patented technology

The invention discloses a method for preparing hydrogel in a double-crosslinking mode and application of the hydrogel, and belongs to the technical field of hydrogel preparation. The method for preparing the hydrogel in the double-crosslinking mode comprises the following steps: dissolving malic acid and a polyethylene glycol polymer in a solvent to obtain a mixed solution; adding a cellulose polymer into the mixed solution, mixing and drying to obtain a particle material; and carrying out esterification cross-linking reaction on the granular material to obtain the hydrogel. Malic acid and polyethylene glycol polymers are used as cross-linking agents, two cellulose polymers are used as substrates, chemical cross-linking reaction is carried out at a certain temperature to form a loose large network structure, and the hydrogel with high strength, high yield and high swelling degree is obtained.

The invention provides a nanocrystalline composite oral ulcer film agent as well as a preparation method and application thereof. The nanocrystalline composite oral ulcer film agent comprises a waterproof backing layer and a drug-loading adhesion layer coated on the waterproof backing layer, the drug-loaded adhesion layer comprises a macromolecular hydrogen bond compound formed by a weakly acidic polymer and a nonionic proton receptor polymer, and a nanocrystalline drug. Compared with the prior art, the preparation method has the advantages that the polyacrylic acid polymer and the nonionic cellulose polymer interact to form IPC serving as an adhesion layer film-forming material, the nanocrystals are loaded into the adhesion layer film-forming material, the waterproof backing layer is coated with the adhesion layer film-forming material, and the oral ulcer film agent is prepared after drying and cutting. The obtained film agent has good comfort and adhesive power, shows good drug stability and permeation promotion performance, can be used as a carrier of an oral administration route, prolongs the drug action time and improves the curative effect. The preparation method of the film agent is simple and easy for industrial mass production.

The present invention provides a super-tough cellulose aerogel fiber, a preparation method thereof and an application thereof. Specifically, it includes using a wet spinning technology to prepare a cellulose molecular-level solution with cellulose polymers as raw materials; using the cellulose molecular-level solution as a spinning solution, and in the spinning process, the cellulose polymers undergo in-situ self-assembly and hydrogen bond cross-linking reactions to form a multi-level nanofiber structure; the nanofiber structure is a continuous three-dimensional multi-level pore network structure. The cellulose aerogel fiber prepared by the technical solution of the present invention not only has excellent physical properties such as high strength and high toughness, but also, due to its multi-level pore structure, it has good adsorption and heat preservation properties, enabling it to be applied not only in the field of knitting technology, but also in the technical fields of air purification, heavy metal adsorption, atmospheric inhalable particulate matter adsorption, indoor harmful gas adsorption, filter materials or heat insulation materials, and can be widely applied.

The object of the present invention is a cosmetic composition comprising: at least 30 wt% of water relative to the total weight of the composition; at least 5% ascorbic acid relative to the total weight of the composition; at least one cationic polymer selected from the group consisting of a cationic galactomannan gum and a cationic cellulose polymer modified with a group containing at least one linear aliphatic chain; and, at least 0.2 wt% of an oxyalkylenated derivative of formula (I); the pH of the composition is between 5 and 7, preferably between 5.5 and 6.5. Another object of the invention is a cosmetic process for caring for keratin materials using this composition.

The present invention relates to a cosmetic composition in the form of an oil-in-water dispersion comprising, in a physiologically acceptable medium: one or more vegetable oils consisting essentially of unsaturated fatty acids and / or unsaturated hydrocarbons, a cellulose polymer, a cellulose powder, and a hydrophilic gelling system comprising a polysaccharide gum and a carboxyvinyl polymer.

The present invention provides a cellulose composite ultrafiltration membrane and a preparation method thereof. The ultrafiltration membrane comprises a main body, one side surface of which is a first outer surface, and the other side surface of which is a second outer surface. Along the direction of fluid flow, the main body is sequentially composed of an ultrafiltration layer, a transition layer, a binding layer and a substrate layer, and the SEM average pore size of the first outer surface is 1-80nm. The membrane is used for efficiently intercepting 1K-750K biomolecules. The ultrafiltration layer and the transition layer are formed by a cellulose polymer with strong hydrophilicity to ensure product yield. In the binding layer, the cellulose polymer forms a first fiber, and the non-natural polymer forms a second fiber. Adjacent first fibers and second fibers are separated from each other to form a gap for fluid to pass through. The non-natural polymer is any one of a sulfone polymer, nylon and polyvinylidene fluoride. The presence of the gap greatly improves the flow rate of the filter membrane, ensuring that the filter membrane can quickly separate and purify various biomolecular fluids. The preparation method provided by the present invention is convenient, fast and effective.

The present invention discloses a formulation of a compound having scalp-strengthening active ingredient, R2 embedded onto a cellulose-based textile fabric, R1. The present invention further discloses a scalp-strengthening textile fabric (100) comprising a composition of nanoparticles (102) formed through a sol-gel process, at least one scalp strengthening active ingredient (104), and a cellulose polymer (106) based textile fabric (110). Moreover, the present invention also discloses a method (200) for producing a scalp strengthening textile fabric. The method (200) involves preparing a water miscible solution of the active ingredient and hydrolysable silane, forming a sol-gel embedded in an emulsion, adjusting pH, and evaporating the solvent to yield active ingredient-loaded nanoparticles. This formulation is applied to the textile fabric, creating a durable scalp- strengthening textile fabric with covalent linkages between the cellulose polymer and active ingredient-loaded nanoparticles.

A super-tough cellulose aerogel fiber, as well as its preparation method and applications are provided. Specifically, the method includes employing a wet spinning technique; preparing a molecular-level cellulose solution using a cellulose polymer as the raw material; using the molecular-level cellulose solution as the spinning solution, wherein during the spinning process, the cellulose polymer undergoes in-situ self-assembly and hydrogen bonding crosslinking to form a multi-level nanofiber structure, wherein the nanofiber structure is a continuous three-dimensional multi-level pore network structure. The super-tough cellulose aerogel fiber not only has excellent physical properties such as high strength and high toughness, but also possesses good adsorption and heat preservation performance due to a multi-level porous structure, so that the super-tough cellulose aerogel fiber can be applied to weaving and other technical fields, and is widely applied.

Cosmetic composition with ascorbic acid, a specific cationic polymer, and at least one particular oxyalkylenated derivative. The present invention relates to a cosmetic composition comprising: - at least 30% by weight of water relative to the total weight of the composition, - at least 5% by weight of ascorbic acid relative to the total weight of the composition, - at least one cationic polymer chosen from cationic galactomannan gums and cationic cellulose polymers modified by groups comprising at least one linear fatty chain, and - at least 0.2% by weight of an oxyalkylenated derivative of formula (I), said composition having a pH of between 5 and 7, preferably between 5.5 and 6.5. It also relates to a cosmetic process for caring for keratin materials using this composition. Figure for the abstract: none

Composition for conditioning keratin materials comprising (A) spherical particles of lipophilically modified silica; (B) at least one cationic polymer comprising a cationic cellulose polymer (B-1), and (C) at least one thickening agent comprising a light-thickening agent (C-1) selected from a vinyl polymer.

The invention provides a preparation method of high-stability perovskite quantum dot ink, which comprises the following steps: step 1, adding a siloxane substance into a perovskite quantum dot solution, stirring under an air contact condition to enable the siloxane substance to be subjected to hydrolysis and condensation reaction to generate silicon dioxide, carrying out heterogeneous nucleation on the surface of the perovskite quantum dot to form a silicon dioxide shell layer so as to obtain a perovskite quantum dot solution with a core-shell structure; step 2, adding a cellulose organic polymer into the perovskite quantum dot solution with the core-shell structure obtained in the step 1, and stirring until the cellulose organic polymer is dissolved in the solution, so that the cellulose organic polymer and the surface of the silicon dioxide shell layer are subjected to interface interaction and an outer polymer stable layer is constructed; by constructing a SiO2-cellulose polymer composite shell structure, excellent dispersity, air stability and light stability of quantum dots in a solution are realized, so that the quantum dots are applicable to preparation of a patterned film by a solution printing process.

Transparent cosmetic composition with ascorbic acid, a specific cationic polymer, and at least s hydrophobic silica aerogel particles The present invention relates to a cosmetic composition comprising: - at least 30% by weight of water relative to the total weight of the composition, - at least 5% by weight of ascorbic acid relative to the total weight of the composition, - at least one cationic polymer chosen from cationic galactomannan gums and cationic cellulose polymers modified by groups comprising at least one linear fatty chain, and - at least 0.01% by weight of hydrophobic silica aerogel particles, said composition having a pH of between 5 and 7, preferably between 5.5 and 6.5. It also relates to a cosmetic process for caring for keratin materials using this composition. Figure for the abstract: none

This invention relates to dry compositions and methods for forming stable liquid personal cleansing formulations. The dry composition of the present invention comprises 30 to 90 wt % of surfactant; 1 to 6 wt % of chelating agent; 0.5 to 20 wt % preservative; and cellulosic polymer, wherein at most 50 wt % of the total weight of cellulosic polymer has degree of substitution less than 0.7.

This invention relates to reconstituable soap based dry composition and methods for forming stable liquid personal cleansing formulations. The composition of the present invention comprises dry composition (powder) suitable for forming stable liquid cleansing formulations comprising: 10 to 80 wt% soap; 0.1 to 50 wt% of non-soap surfactant; 0.1 to 3 wt% of chelating agent; and 1 to 30 wt% thickening agent comprising cellulosic polymer or hydrophobically modified cellulosic polymer or mixture thereof.

Transparent cosmetic composition with ascorbic acid, cationic polymer and glycol The present invention relates to a cosmetic composition comprising, in a physiologically acceptable aqueous medium: - at least 5% by weight of ascorbic acid or one of its derivatives, - at least 3.5% by weight relative to the total weight of the composition, of at least one glycol comprising from 5 to 7 carbon atoms, - at least one cationic polymer chosen from cationic cellulose polymers modified by groups comprising at least one linear fatty chain. Figure for the abstract: none

A composition for external preparation, containing the following components: (A) a medicinal ingredient; (B) a water-insoluble polymer, (C) a non-volatile base; and (D) a volatile solvent. The component (B) contains two or more selected from the group consisting of (B1) a cellulosic polymer, (B2) an acrylic polymer, and (B3) a vinyl polymer. The composition for external preparation has a viscosity at 25° C. of from 1.0 mPa·s to 10,000 mPa·s.

The present disclosure provides suspendable ophthalmic solutions with excellent redispersibility. The present disclosure provides an aqueous suspension agent comprising (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide or a pharmaceutically acceptable salt or solvate thereof, a cellulosic polymer, and a nonionic surfactant.

In a slow-dissolving composition, the aim is to achieve excellent slow-dissolving properties, resistance to cracking, and reduced adhesion to the object being washed. [Solution] Used by placing it in the lint filter or detergent dispenser of a washing machine, with a volume of 100 mm 3 The above is the basis for the product. It is preferable that the hardness be 8 to 50 kgf, and that it contains (A) an inorganic metal salt that is sparingly soluble or insoluble in water, (B) one or more selected from wax, hardened oil, sucrose fatty acid ester and cellulosic polymer, and (C) sugars.

Transparent cosmetic composition with ascorbic acid, a specific cationic polymer, and at least one polyoxyethylenated alkylether dimethylsilane compound. The present invention relates to a cosmetic composition comprising: - at least 30% by weight of water relative to the total weight of the composition, - at least 5% by weight of ascorbic acid relative to the total weight of the composition, - at least one cationic polymer chosen from cationic galactomannan gums and cationic cellulose polymers modified by groups comprising at least one linear fatty chain, and - at least 0.2% by weight of a polyoxyethylenated alkylether dimethylsilane compound, said composition having a pH of between 5 and 7, preferably between 5.5 and 6.5. It also relates to a cosmetic process for caring for keratin materials using this composition. Figure for the abstract: none

Provided herein are amine-functionalized cellulose polymers useful for carbon dioxide capture and methods of preparation and use thereof.

A carbon material granulated product contains a carbon black having a particle size D50, as determined by a laser diffraction / scattering method specified in ISO 13320, of 250 μm or less, a carbon nanotube having a particle size D50, as determined by the laser diffraction / scattering method specified in ISO 13320, of 50 μm or less, and a solvent-soluble polymer impregnated into the carbon black and the carbon nanotube. In the carbon material granulated product, the solvent-soluble polymer is at least one selected from the group consisting of ether polymers, vinyl polymers, amine polymers, cellulose polymers, and starch polymers, and the content of the solvent-soluble polymer is in a range from 1 part by mass to 15 parts by mass relative to a total content of the carbon black and the carbon nanotube taken as 100 parts by mass.

The present invention relates to sustained release formulations of Potassium chloride crystals having a mesh size ranging from about 60 to 100 mesh, combined with one or more pharmaceutically acceptable excipients, wherein the potassium chloride crystals are coated with a coating solution comprising cellulosic polymer in an amount up to 9% w / w based on the total weight of the granules and to processes for their preparation.

A method and product comprising mixing at least one oil to a converted methylcellulose polymer to result in a methylcellulose polymer-oil mixture, mixing at least one hydrocolloid to the methylcellulose polymer-oil mixture and heating the methylcellulose polymer-oil mixture to result in a microgel structure; and entrapping at least one flavor potentiator within the microgel structure to result in a peptide-infused microgel structure.

The invention discloses a plugging agent and a preparation method thereof, the plugging agent comprises bentonite, cement and a retarder, the mass ratio of the bentonite to the cement is 1: 15, and the water-cement ratio of the cement is 5-7; the retarder is a hydroxyl-containing cellulose polymer and citric acid, the ratio of the hydroxyl-containing cellulose polymer to the water is (1: 1000)-(1: 1500), and the addition amount of the citric acid is 0.1-0.3% of the total mass of the bentonite, the cement and the retarder; the plugging agent provided by the invention can effectively prolong the initial setting time, and provides objective conditions for the plugging agent to enter a deeper layer to play a role in plugging formation water outlet ducts, so that the problems of short initial setting time and small plugging radius of an existing plugging agent are fundamentally solved.

The application relates to a negative electrode dispersant, a preparation method thereof and a lithium ion battery. The negative electrode dispersant comprises a cellulose polymer, the cellulose polymer comprises an alkaline cellulose compound and a crosslinking agent, the crosslinking agent comprises a biphenyl compound, the biphenyl compound comprises at least one biphenyl group, and further comprises one or more of an aldehyde group, an acyl group, an ester group and a carboxyl group. The scheme provided by the application can reduce the addition amount of CMC, improve the energy density of the battery, and does not affect the cycle performance and rate performance of the battery.

Provided herein are thioether-functionalized cellulose polymers, compositions, films, fibers, particles, coatings, drug delivery articles, and methods of making and using the same. The polymers comprise a cellulose backbone of repeating anhydroglucose units and thioether substituents covalently attached to at least a portion of the hydroxyl groups of the repeating anhydroglucose units.

This invention discloses a borate ester crosslinked cellulose acetate solid electrolyte, its preparation method, and its applications, relating to the field of electrochemical power source technology. The solid electrolyte comprises a crosslinked polymer, a lithium salt, and a plasticizer; the crosslinked polymer is a borate ester crosslinked cellulose acetate polymer, and its preparation raw materials include cellulose acetate and a boron-containing crosslinking agent; the solid electrolyte possesses a three-dimensional network structure and an electrochemical stability window ≥4.5V. The solid electrolyte of this invention has a wide electrochemical stability window and high mechanical strength, making it suitable for high-voltage cathode materials. It effectively solves the problem of poor high-voltage adaptability caused by the narrow electrochemical stability window of traditional solid polymer electrolytes, and has the advantages of simple process, easy control of conditions, and low cost.

NAIL POLISH TOP COAT COMPOSITION The invention provides a composition for use on nails, comprising a solvent system that includes at least one non-aqueous, volatile polar solvent; a water-insoluble nitrocellulose polymer; an organic silicone hybrid polymer; and an alkyd resin. It also provides methods, including those for use as a top coat. Figure for abstract: none

[Problem] The present invention aims to provide a method for producing a flexible material using a woven fabric through a heat-pressure polymer infiltration process. [Solution] The present invention first uses an alkaline ionic liquid aqueous solution to activate and dissolve the cellulose contained in the fabric, thereby obtaining a cellulose polymer ionic liquid solution similar to an "adhesive." Subsequently, the undissolved fibers are bonded together by a hot-press process, and the material after hot-pressing is further softened by a polymer impregnation treatment, ultimately obtaining a high-strength flexible material made from waste textile products. The present invention does not use pure ionic liquids and does not require the complete dissolution of cellulose, resulting in a short processing time and a simple process. Furthermore, it can partially retain the inherent strength of natural fibers and significantly improve the breaking stress and breaking elongation of the flexible material. The maximum breaking stress reaches 60 MPa or more, and the maximum breaking elongation reaches 50% or more.

Provided herein are thioether-functionalized cellulose polymers, compositions, films, fibers, particles, coatings, drug delivery articles, and methods of making and using the same. The polymers comprise a cellulose backbone of repeating anhydroglucose units and thioether substituents covalently attached to at least a portion of the hydroxyl groups of the repeating anhydroglucose units.