CERIUM OXIDE NANOPARTICLES, DISPERSION, ANTIVIRAL AGENT, ANTIMICROBIAL AGENT, RESIN COMPOSITION, RESIN PRODUCT, FIBER MATERIAL, FIBER PRODUCT, AND METHOD FOR PRODUCING CERIUM OXIDE NANOPARTICLES

• Main Authors: MOTOSHIROMIZU, Takahiro, KARASAKI, Hideaki, SONG, Yetao, SAITO, Akira, KOKUBO, Yoshiaki, KOSHI, Yoichiro, SEKIGUCHI, Shota, ITO, Masateru
• Format: Patent
• Language: English; French; Japanese
• Published: 06.04.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TRAPPING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Provided are: cerium oxide nanoparticles that have excellent antimicrobial and antiviral activity and have low coloration; and a resin composition and a fiber material that include the cerium oxide nanoparticles. The cerium oxide nanoparticles include, as a stabilizer, a basic amino acid, an alicyclic amine, an aromatic heterocyclic compound that includes a nitrogen atom in the ring structure thereof, a polymer that has a heterocyclic amine skeleton, or a boron compound, and are characterized in that the APHA of a 1% by mass dispersion of the particles is no more than 400. The resin composition and the fiber material include said nanoparticles and have low coloration. L'invention concerne : des nanoparticules d'oxyde de cérium qui ont une excellente activité antimicrobienne et antivirale et une faible coloration ; et une composition de résine et un matériau fibreux qui comprennent les nanoparticules d'oxyde de cérium. Les nanoparticules d'oxyde de cérium comprennent, en tant que stabilisant, un acide aminé basique, une amine alicyclique, un composé hétérocyclique aromatique qui comprend un atome d'azote dans sa structure cyclique, un polymère qui a un squelette d'amine hétérocyclique, ou un composé de bore, et sont caractérisées en ce que l'APHA d'une dispersion de 1 % en masse des particules n'est pas supérieur à 400. La composition de résine et le matériau fibreux comprennent lesdites nanoparticules et ont une faible coloration. 抗菌活性、抗ウイルス活性に優れ、着色性の低い酸化セリウムのナノ粒子ならびに酸化セリウムのナノ粒子を含む樹脂組成物、繊維材料を提供する。塩基性アミノ酸、脂環式アミン、窒素原子を環構造内に含む芳香族ヘテロ環化合物、複素環式アミン骨格を有するポリマー、またはホウ素化合物を安定化剤として含む酸化セリウムのナノ粒子であって、１質量％分散液のＡＰＨＡが４００以下であることを特徴とする酸化セリウムのナノ粒子。また、当該ナノ粒子を含む着色性の低い樹脂組成物、繊維材料。