C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
C08B 37/08 (2006.01) A61L 24/08 (2006.01) A61L 27/20 (2006.01) A61L 27/52 (2006.01) A61L 31/04 (2006.01) A61L 31/14 (2006.01) C08L 5/08 (2006.01)
Patent
CA 2399039
Production of a hyaluronic acid gel, which comprises keeping hyaluronic acid in water at a hyaluronic acid concentration of at least 5 wt% in the presence of an acid component in an amount at least equimolar with the carboxyl groups in the hyaluronic acid.
L'invention porte sur un gel de l'acide hyaluronique obtenu en faisant coexister de l'acide hyaluronique de l'eau (la concentration en poids de l'acide étant de 5 % ou plus), et un ingrédient acide (en quantité au moins égale à l'équivalent molaire des groupes carbonyle de l'acide hyaluronique, et en maintenant l'état de coexistence.
Arai Kazuhiko
Kaneko Hiroshi
Kawata Masatoshi
Kitagawa Hironoshin
Miyata Yoshiaki
Denki Kagaku Kogyo Kabushiki Kaisha
Smart & Biggar
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