Anionic copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions

Details for Australian Patent Application No. 2002359640 (hide)

Owner Hercules Incorporated

Inventors Zhang, Fushan; Brady, Richard Lee; Carey, William Sean; Harrington, John C; Walchuk, Brian L

Agent Spruson & Ferguson

Pub. Number AU-B-2002359640

PCT Number PCT/US02/39143

PCT Pub. Number WO2003/050152

Priority 10/006,029 07.12.01 US

Filing date 6 December 2002

Wipo publication date 23 June 2003

Acceptance publication date 10 April 2008

International Classifications

C08F 220/06 (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 2/32 (2006.01) Processes - Polymerisation in water-in-oil emulsions

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

D21H 17/42 (2006.01) Non-fibrous material added to the pulp, characterised by its constitution

D21H 17/43 (2006.01) Non-fibrous material added to the pulp, characterised by its constitution

D21H 21/10 (2006.01) Non-fibrous material added to the pulp, characterised by its function, form or properties - Retention agents or drainage improvers

Event Publications

3 April 2003 Complete Application Filed

  Priority application(s): 10/006,029 07.12.01 US

28 August 2003 Application Open to Public Inspection

  Published as AU-B-2002359640

10 April 2008 Application Accepted

  Published as AU-B-2002359640

7 August 2008 Standard Patent Sealed

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