Hydroxypropyl methyl cellulose hard capsules and process of...

Details Hydroxypropyl methyl cellulose hard capsules and process of... Hydroxypropyl methyl cellulose hard capsules and process of...

C - Chemistry, Metallurgy

08

L

C08L 1/28 (2006.01) A61J 3/07 (2006.01) A61K 9/48 (2006.01) B29C 41/14 (2006.01) B65D 65/46 (2006.01)

Patent

CA 2667167

A composition for manufacture of hard hydroxypropyl methyl cellulose capsules comprising a film forming material of hydroxypropyl methyl cellulose having a methoxy content of 27.0-30.0% (w/w), and a hydroxypropoxy content of 4.0 - 7.5% and as a 2% weight solution, a viscosity of 3.5 - 6.0 cPs at 20°C, dipping compositions, process for manufacture of hard hydroxypropyl methyl cellulose capsules according to a dip coating process and hard capsule shells.

La présente invention concerne une composition pour fabriquer des capsules dures en hydroxypropylméthylcellulose comprenant un matériau filmogène d'hydroxypropylméthylcellulose ayant une teneur en groupes méthoxy allant de 27,0 à 30,0 % (en poids), et une teneur en groupes hydroxypropoxy allant de 4,0 à 7,5 % et sous la forme d'une solution à 2 % en poids, ayant une viscosité allant de 3,5 à 6,0 cPs à 200 °C, des compositions de trempage, un procédé de fabrication de capsules dures en hydroxypropylméthylcellulose au moyen d'un procédé de revêtement par trempage et des enveloppes de capsules dures.

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