Cationic latex terpolymers for sludge dewatering

Details for Australian Patent Application No. 2002239652 (hide)

Owner Ondeo Nalco Company

Inventors Sivakumar, Ananthasubramanian; Whipple, Wesley, L.; ShahH, Jitendra

Agent Griffith Hack

Pub. Number AU-B-2002239652

PCT Pub. Number WO2002/060967

Priority 09/774,325 31.01.01 US

Filing date 19 December 2001

Wipo publication date 12 August 2002

Acceptance publication date 22 March 2007

International Classifications

B01D 21/01 (2006.01) Separation of suspended solid particles from liquids by sedimentation - using flocculating agents

C02F 1/56 (2006.01) Treatment of water, waste water, or sewage

C02F 11/12 (2006.01) Treatment of sludge - by de-watering, drying, or thickening

C02F 11/14 (2006.01) Treatment of sludge - with addition of chemical agents

C08F 220/26 (2006.01) Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof

C08F 220/34 (2006.01) Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof

C08F 220/56 (2006.01) Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof

C08F 220/60 (2006.01) Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof

C08K 5/42 (2006.01) Use of organic ingredients

C08L 33/14 (2006.01) Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof

C08L 33/26 (2006.01) Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof

Event Publications

20 February 2003 Application Open to Public Inspection

  Published as AU-B-2002239652

22 March 2007 Application Accepted

  Published as AU-B-2002239652

19 July 2007 Standard Patent Sealed

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