Adhesive material containing 5-methyl-1-phenyl-2-(1H)-pyridone
AssigneeLead Chemical Co., Ltd.
InventorsTakayasu Matsuzawa, Tamaki Horiuchi, Seijiro Yama, Sunao Takeuchi, Makoto Takeuchi
Life of this patent
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Abstract
There is provided an adhesive preparation containing 5-methyl-1-phenyl-2-(1H)-pyridone. The adhesive preparation is a 5-methyl-1-phenyl-2-(1H)-pyridone-containing adhesive preparation including an active medicinal ingredient-containing layer, characterized in that the active medicinal ingredient-containing layer contains an lipophilic base, a dissolving agent (except glycerin and a medium-chain aliphatic acid triglyceride), and 5-methyl-1-phenyl-2-(1H)-pyridone or medically acceptable salts thereof.
Claims15
A 5-methyl-1-phenyl-2-(1H)-pyridone-containing adhesive preparation including an active medicinal ingredient-containing layer, wherein:
- the active medicinal ingredient-containing layer contains a lipophilic base, a dissolving agent, and 5-methyl-1-phenyl-2-(1H)-pyridone or a medically acceptable salt thereof;
- the lipophilic base comprises:
- (i) at least one lipophilic polymer selected from the group consisting of styrene/isoprene/styrene block copolymers, styrene/butadiene block copolymers, polyisobutylene, polyisoprene, and polybutene;
- (ii) at least one plasticizer selected from the group consisting of liquid paraffin, vegetable oils, animal oils, vaseline, lanolin, and higher aliphatic esters;
- and (iii) at least one tackifier selected from the group consisting of petroleum resins, rosin-based resins, hydrogenated rosins, rosin esters, terpene resins, modified terpene resins, aromatic hydrocarbon resins, and aliphatic hydrocarbon resins;
- and
- the dissolving agent is selected from the group consisting of butylene glycol, polyethylene glycol, N-methyl-pyrrolidone, propylene carbonate, isopropyl myristate, crotamiton, and diisopropyl adipate.
Dependencies are inferred from the claim text.