CARBOXYMETHYL-GROUP-CONTAINING MODIFIED HYALURONIC ACID AND/OR SALT THEREOF AND/OR PRODUCTION METHOD FOR CARBOXYMETHYL-GROUP-CONTAINING MODIFIED HYALURONIC ACID AND/OR SALT THEREOF

카르복시메틸기 함유 수식 히알루론산 및/또는 그 염의 제조 방법은, 온도가 30 ℃ 이하인 함수 용매 중에서, 용해된 원료 히알루론산 및/또는 그 염을 할로아세트산 및/또는 그 염과 반응시키는 공정을 포함하고, 상기 함수 용매는, 물 또는 수용성 유기 용매와 물의 혼합액이고, 상기 혼합액 중에 있어서의 수용성 유기 용매의 비율이 60 v/v％ 이하이다. A method of producing a carboxymethyl-group-containing modified hyaluronic acid and/or a salt thereof...

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Bibliographische Detailangaben
Hauptverfasser:	ASAOKA KAZUNORI, FUJIKAWA SHUNICHI, ABE YUKINA, YOSHIDA TAKUSHI
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES THEREOF FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES HYGIENE INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLICBEVERAGES MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Beschreibung
Zusammenfassung:	카르복시메틸기 함유 수식 히알루론산 및/또는 그 염의 제조 방법은, 온도가 30 ℃ 이하인 함수 용매 중에서, 용해된 원료 히알루론산 및/또는 그 염을 할로아세트산 및/또는 그 염과 반응시키는 공정을 포함하고, 상기 함수 용매는, 물 또는 수용성 유기 용매와 물의 혼합액이고, 상기 혼합액 중에 있어서의 수용성 유기 용매의 비율이 60 v/v％ 이하이다. A method of producing a carboxymethyl-group-containing modified hyaluronic acid and/or a salt thereof includes a step of subjecting, in a water-containing solvent having a temperature of 30°C or less, a dissolved raw material hyaluronic acid and/or a salt thereof to a reaction with a haloacetic acid and/or a salt thereof, the water-containing solvent including water or a liquid mixture of a water-soluble organic solvent and water, a ratio of the water-soluble organic solvent in the liquid mixture being 60 v/v% or less.