Light-shielding agent and film-forming composition

A - Human Necessities – 61 – K

Patent

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Details

A61K 47/02 (2006.01) A61K 9/16 (2006.01) A61K 9/20 (2006.01) A61K 9/48 (2006.01) A61K 31/4422 (2006.01) A61K 47/12 (2006.01) A61K 47/38 (2006.01) A61Q 17/04 (2006.01)

Patent

CA 2509620

It is intended to provide a light-blocking agent whereby peeling and powdery finishing on the surface of a preparation due to light or UV rays can be inhibited, the gloss of the preparation surface can be improved and the appearance of the preparation can be kept for a long time without worsening the stability or qualities of the preparation (for example, a drug), and a film-forming composition, etc. containing the same. The above light-blocking agent contains a calcium-containing compound, while the above film-forming composition contains such a light-blocking agent containing a calcium- containing compound together with a film base. It is also intended to provide a preparation and a capsule coated with the above light-blocking agent, the above film-forming composition or both of them.

Cette invention se rapporte à un agent photo-bloquant, grâce auquel on peut empêcher la formation d'un fini pelliculé et pulvérulent à la surface d'une préparation en raison de l'exposition à la lumière ou à des rayons VU, on peut améliorer le brillant de la surface de la préparation et on peut préserver longtemps l'aspect de la préparation, sans dégradation de la stabilité ou des qualités de la préparation (par exemple un médicament), ainsi qu'à une composition filmogène notamment, contenant un tel agent. Cet agent photo-bloquant contient un composé à teneur en calcium, alors que ladite composition filmogène contient un tel agent photo-bloquant renfermant un composé à teneur en calcium associé à une base sous forme de film. Cette invention vise également à produire une préparation et une capsule recouvertes de cet agent photo-bloquant, de cette composition filmogène ou de l'un et l'autre.

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