Plaster containing 4-biphenylacetic acid

Details Plaster containing 4-biphenylacetic acid Plaster containing 4-biphenylacetic acid

2006-08-22

2006-08-22

Hartley, Michael G. (Department: 1618)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Web, sheet or filament bases; compositions of bandages; or...

C424S448000, C424S449000, C424S486000

Reexamination Certificate

active

07094421

ABSTRACT:
It is provided the plaster of anti-inflammatory and analgesic, improving the sustained releasing of 4-biphenylacetic acid from the base adhesive material and low skin irritation, by using more than two kinds of resolvent for 4-biphenylacetic acid having low solubility in solvents. More specifically, it is provided plasters essentially containing 5–50% by weight of styrene-isoprene-styrene block copolymer, 0.05–20% by weight of N-methyl-2-pyrrolidone, 0.1–20% by weight of polyethylene glycol and 0.1–20% by weight of 4-biphenylacetic acid.

REFERENCES:
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patent: 5719197 (1998-02-01), Kanios et al.
patent: 5869087 (1999-02-01), Hirano et al.
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patent: 04312162 (1999-11-01), None
patent: 98/24423 (1998-06-01), None

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