Pai Patent & Trademark Law Firm
Base composition for microneedle patch and microneedle patch comprising the same
The present invention relates to a base composition for a microneedle patch and a microneedle patch comprising the same. The base composition comprises a first HPMC, a second HPMC and PVP/VA, wherein the viscosity of the first HPMC is greater than that of the second HPMC, the weight ratio of the first HPMC relative to the second HPMC is 1:0.1 to 1:1.2, and the amount of the PVP/VA is 0.25 wt % to 2 wt %. By controlling the constitution of the base composition, the microneedle patch can not only be demolded smoothly during the stage of the production, but also obtain the desired softness, flatness, flexibility, skin adhesion during the stage of use and humidity resistance during the stage of storage.
WIN COAT CORPORATION
B A C A Y A A B B B C A B C C C A C B B
B29L A61K C08L A61K Y10T A61M A61K B29K B29K B29C C08L A61M B29K C08L C08L C08L A61M C08L B29C B29L
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Hung-Hsing Hsiu-Feng Ta-Jo Yu-Sheng Yun-Hsuan
Lin Yeh Liu Lin Chen