Patent ID: 6586587
Filing Date: 2003-07-01
Classification: C08B,C08L,C09K

Abstract:
A ligand-modified cellulose product, comprising cellulose ether, and at least one salt of calcium and at least one ligand selected from the group consisting of nitrilo-tri-acetic acid, ethylene-di-amine-tetra-acetic acid, 1,2-cyclo-hexan-di-amin-N,N,Nâ€²,Nâ€²-tetra-acetic acid, di-ethylene-tri-amine-penta-acetic acid, ethylene-dioxy-bis(ethylene-nitrilo)-tetra-acetic acid, N-(2-hydroxy-ethyl)-ethylene-diamine-N,N,Nâ€²-tri-acetic acid, tri-ethylene-tetra-amine-hexa-acetic acid, N-(hydroxyethyl) ethylene-di-amine-tri-acetic acid and mixtures thereof.