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US 6,682,881 B2Granted
Antifoaming agent composition for a silver halide photographic processing solution and process for processing a silver halide photographic material using same
AssigneeFuji Photo Film Co., Ltd.
InventorAkimitsu Haijima
Life of this patent
Estimating the term…
Abstract
An antifoaming agent composition for a silver halide photographic processing solution, which comprises at least one of the specified (polyoxyethylene/polyoxypropylene) copolymer as a surface active agent.
Claims11
A photographic processing antifoaming composition comprising an aqueous solution containing an alcohol and at least one of (polyethylene oxide/polypropylene oxide) copolymer represented by formulae (I) to (IV) below as a surface active agent:
- wherein a11, a12, b11, a21, b21, b22, a31, a32, a33, a34, b31, b32, b33, b34, a41, a42, a43, a44, b41, b42, b43 and b44 each independently represents the average number of the respective alkyleneoxy groups.
The A photographic processing antifoaming composition comprising a (polyethylene oxide/polypropylene oxide) copolymer represented by formula (I) below as a surface active agent:
- wherein a11, a12, and b11 each independently represents the average number of the respective alkyleneoxy groups.
Dependencies are inferred from the claim text.