C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/29
C11D 7/50 (2006.01) C11D 7/06 (2006.01) D21F 1/32 (2006.01) C11D 7/26 (2006.01) C11D 7/32 (2006.01)
Patent
CA 1319078
ABSTRACT A composition and method for cleaning papermill wire and felt are disclosed which use surprisingly effective combinations of organic cleaning components, such as N-methyl-2-pyrrolidone and ?-butyrolactone (and certain of their structurally related compounds) with an alkali, such as sodium metasilicate and sodium hydroxide land other alkali metal hydroxides), in both water and an organic cosolvent such as isopropanol, acetone, and 2-butoxyethanol (and other glycol ethers).
558892
Clifford Richard Purdie
Cullen Theresa
Schenker Achim
Schuetz Juergen F.
Betzdearborn Inc.
Gowling Lafleur Henderson Llp
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