PRODUCTION OF LOWLY VISCOUS WATER-SOLUBLE POLYMER DISPERSION, AND FLOCCULANT, RETENTIVE, THICKENER, ADDITIVE, DEHYDRATOR AND SOIL CONDITIONER COMPRISING SAME
Prepn. of a low viscosity, water-soluble polymer dispersion (PD) with a high actives content and an aq. basis and with the polymer having average mol.wt. Mw at least 500000 is by polymerisation of the following monomers (a1)-(a4) (100 wt.% total) in an aq. soln. in presence of a polymeric dispersant...
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Zusammenfassung: | Prepn. of a low viscosity, water-soluble polymer dispersion (PD) with a high actives content and an aq. basis and with the polymer having average mol.wt. Mw at least 500000 is by polymerisation of the following monomers (a1)-(a4) (100 wt.% total) in an aq. soln. in presence of a polymeric dispersant (D) which is incompatible with the resulting polymer (A): (a1) 50-99.999 wt.% water-soluble monomer; (a2) 0.001-1 wt.% crosslinking monomer with 2 or more ethylenically unsatd., radically-polymerisable double bands; (a3) 0-30 (e.g.1-25) wt.% hydrophobic monomer; and (a4) 0-20 (e.g.0.1-15) wt.% amphiphilic monomer. |
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