Patent classifications
C08J3/126
METHOD FOR MANUFACTURING CARBOXYMETHYL CELLULOSE PARTICLES, CARBOXYMETHYL CELLULOSE PARTICLES MANUFACTURED THEREBY, AND ABSORBENT ARTICLE COMPRISING SAME
The present disclosure relates to a method for manufacturing carboxymethyl cellulose particles, cellulose inducer particles manufactured by the method, and an absorbent article comprising same. The method comprises: (1) a step of obtaining alkalized cellulose by reacting a cellulose raw material with an alkalizer; (2) a step of obtaining carboxymethyl cellulose by reacting the alkalized cellulose with a carboxy methylating agent; (3) a primary cross-linking step of obtaining a slurry-phase carboxymethyl cellulose cross-linked body by reacting the carboxymethyl cellulose with a core cross-linker; (4) a step of washing and dehydrating after filtering the slurry-phase carboxymethyl cellulose cross-linked body; (5) a secondary cross-linking step of obtaining carboxymethyl cellulose having a core-shell structure by reacting the carboxymethyl cellulose cross-linked body having undergone Step (4) with a surface cross-linker; and (6) a step of obtaining carboxymethyl cellulose particles having a core-shell structure by drying and pulverizing the carboxymethyl cellulose having a core-shell structure.
CELLULOSIC PARTICLE
A cellulosic particle contains 90 parts by mass or more and 99.5 parts by mass or less of cellulose; and 0.5 parts by mass or more and 10 parts by mass or less of a cellulose derivative.
Core-shell polymer nanoparticle
A method of forming a core-shell polymer nanoparticle encapsulating an active agent is disclosed, including the use of a multi-solvent system in which to dissolve the active agent and a polymer prior to their precipitation using an antisolvent. The preferred use of an organic solvent system comprising two or more organic solvents allows for a high degree of control, as compared with the use of a single solvent, and enables the active agent to be precipitated more or less simultaneously with, or just prior to, the polymer.
APPARATUS, SYSTEM AND METHOD OF COATING ORGANIC AND INORGANIC PRINT MATERIALS
The disclosed exemplary apparatuses, systems and methods may provide a pulverant suitable to provide a three-dimensional molding by use of the pulverant in a layer-by-layer additive manufacturing process in which regions of respective layers of pulverant are selectively melted via introduction of electromagnetic energy. The pulverant may comprise a spray dried, thermoplastic polyurethane polymer (TPU) coated, inorganic or organic base particle.
COATED OLEFIN-BASED POLYMERS WITH REDUCED BLOCKING
A process to form coated polymer particles comprising polymer particles formed from a polymer composition comprising an olefin-based polymer, and a coating formed from a coating composition comprising an aqueous metal acid dispersion and an aqueous polysiloxane emulsion, said process comprising the following: mixing together the aqueous metal acid dispersion and the aqueous polysiloxane emulsion to form a dispersion/emulsion mixture; applying the dispersion/emulsion mixture to a portion of the surfaces of the polymer particles to form wet-coated polymer particles; drying the wet-coated polymer particles to form the coated polymer particles. The aqueous metal acid dispersion and the aqueous polysiloxane emulsion may also be applied, individually, in separate steps.
COMPOSITE PARTICLES, COMPOSITE-PARTICLE COMPOSITION, AND METHOD FOR PRODUCING COMPOSITE-PARTICLE COMPOSITION
What is provided is a method for producing a composite-particle composition including a first step of obtaining a dispersion liquid of fine fibers; a second step of coating a surface of liquid droplets of a polymerizable monomer or a polymer with the fine fibers in the dispersion liquid to stabilize the liquid droplets as an emulsion; a third step of polymerizing the liquid droplets of the polymerizable monomer or the polymer to obtain composite particles including the polymer coated with the fine fibers; and a fourth step of adsorbing a compound that forms an ionic bond in a pair with an ionic functional group of the fine fibers onto the fine fibers in the surface of the composite particles.
BITUMEN GRANULES WHICH ARE SOLID AT AMBIENT TEMPERATURE
Bitumen granules including at least: bitumen, a compound of general formula R1-(COOH)z (I), a compound of general formula R2-(NH)nCONH—X—(NHCO)p(NH)n-R3 (II), and a compound of general formula Ar1-R-Ar2 (III); and a method for producing the bitumen granules and to the use thereof as asphalt binder.
COMPOSITION, PREPARATION METHOD FOR AND APPLICATION OF COMPOSITION, AND SELF-HEALING METHOD FOR WELL CEMENTING IN OIL/GAS FIELD
Described are a self-healing composition, and a preparation method for and an application of the composition. The composition is of a core-shell structure; the core contains a hydrogenated styrenic thermoplastic elastomer polymer and an inorganic filler; the shell contains a hydrophilic polymer; the composition has a density of 1.2-2 g/cm.sup.3, a water contact angle of no more than 90°, and a diesel oil and/or natural gas absorption expansion ratio of 5-15 times. By coating the hydrogenated styrenic thermoplastic elastomer and the inorganic filler with the hydrophilic (surface polarized) polymer, a core-shell structure is formed. When the composition is used for well cementing in an oil/gas field, the composition has a density and compatibility matching cement mortar and thus can form a uniform and stable cement slurry for well cementing in the oil/gas field, and has excellent oil/gas absorption expansion performance and thus can expand after absorbing oil/gas to perform self-healing.
Synthetically modified thermoplastic polymer composites having cellulose nanomaterials
A method of manufacturing a polymer coated cellulose nanocrystal composite material begins with an aqueous cellulose nanocrystal (CNC) suspension mixture. The aqueous CNC suspension mixture is dried to remove the liquid solvent from the aqueous CNC suspension mixture to form a dry CNC powder. Diethylenetriamine (DETA) is combined with melted Maleated-anhydride Polypropylene (MAPP) to form a DETA-functionalized MAPP (MA) mixture. The MA mixture is cooled and pelletized to form MA pellets. The MA pellets, the dry CNC powder, and a neat polypropylene (PP) are combined to form a CNC-PP mixture. The CNC-PP mixture is compounded by melting, subsequently cooled and pelletized to form CNC-PP pellets.
Method for producing molded article
A method for producing a molded article from a molding material, wherein the molding material contains a fluorine-containing graft chain. Also disclosed is a molding material for a fluorine-containing molded article including a resin material having a graft chain.