Polysaccharides with oxime or amine functions which are used...

Details Polysaccharides with oxime or amine functions which are used... Polysaccharides with oxime or amine functions which are used...

2007-01-30

2007-01-30

Hruskoci, Peter A. (Department: 1724)

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

C210S912000, C210S913000, C210S914000, C536S055100, C536S114000

Reexamination Certificate

active

10481658

ABSTRACT:
The invention relates to a particular polymer which is derived from a copolymer polysaccharide formed by a main chain comprising similar or different anhydrohexose units and branches including at least one neutral or anionic anhydropentose and/or anhydrohexose unit. Moreover, the invention relates to the use of said polymer in the treatment of aqueous media, in particular the treatment of aqueous effluents containing heavy metals, the treatment of waste water, drinking water and for sludge conditioning. Said derivative polymer comprises one or more units bearing an oxime function at least at position C2.

REFERENCES:
patent: 3912715 (1975-10-01), Jarowenko
patent: 4565635 (1986-01-01), Le Du et al.
patent: 5738795 (1998-04-01), Chen
patent: 6139751 (2000-10-01), Bogaert et al.
patent: 6846923 (2005-01-01), Wang et al.
patent: 6987181 (2006-01-01), Jaschinski et al.
patent: 10113677 (1998-05-01), None
patent: WO 98 21271 (1998-05-01), None
Patent Abstracts of Japan, vol. 1998, No. 10, Aug. 31, 1998, & JP 10 113677A (Sakai Kokichi; Onaka Takashi; Manabe Koji), May 6, 1998 abstract.
International Search Report.

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