Owner Hercules Incorporated

Inventors Varnell, Daniel F.

Agent Spruson & Ferguson

Pub. Number AU-B-2002332792

PCT Number PCT/US02/27874

PCT Pub. Number WO2003/022898

Priority 09/947,300 06.09.01 US

Filing date 30 August 2002

Wipo publication date 24 March 2003

Acceptance publication date 24 May 2007

C08F 220/04 (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 222/00 (2006.01) Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule

C08F 226/04 (2006.01) Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen

D21H 17/45 (2006.01) Non-fibrous material added to the pulp, characterised by its constitution

D21H 21/16 (2006.01) Non-fibrous material added to the pulp, characterised by its function, form or properties