C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 69/22 (2006.01) C07C 69/58 (2006.01) D21C 5/02 (2006.01)
Patent
CA 2056547
Abstract of the Disclosure A deinking agent for reclaiming waste paper comprises (A) (1) a polyoxyalkylene adduct of a higher fatty acid ester of polyhydric alcohol, which ester has one to three terminal OH groups, wherein the higher fatty acid has 8 to 24 carbon atoms, the polyhydric alcohol has at least 4 carbon atoms, total molar number of added alkylene oxide is 10 to 200 and the alkylene oxide has 2 to 4 carbon atoms, or (2) a higher fatty acid ester of a polyoxyalkylene adduct of polyhydric alcohol wherein the higher fatty acid has 8 to 24 carbon atoms, total molar number of added alkylene oxide is 10 to 200, the alkylene oxide has 2 to 4 carbon atoms and the ester has one to three terminal OH groups; or comprises (A) the foregoing compound; and (B) a polyoxyalkylene alkyl ester or fatty acid. The deinking agent has various excellent properties, for instance, has excellent ability of removing or collecting inks included in pulp fibers of newspaper, magazines, colored wood-free paper and paper for recording information as well as various waste paper printed with inks such as offset inks, inks for typographic printing and toner inks and can provide high quality reclaimed pulp having high whiteness and a low content of remaning ink and which does not look dark and dull. Further, it can impart stable and trouble-free operability to the deinking process.
Adachi Ikuo
Hagiwara Masaaki
Okamoto Yutaka
Adachi Ikuo
Hagiwara Masaaki
Lion Corporation
Okamoto Yutaka
Swabey Ogilvy Renault
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