Lignosulfonate-based graft polymers, their preparation and uses

Details Lignosulfonate-based graft polymers, their preparation and uses Lignosulfonate-based graft polymers, their preparation and uses

C - Chemistry, Metallurgy

08

F

400/1400, 31/19,

C08F 289/00 (2006.01) C09K 17/22 (2006.01) C08H 6/00 (2010.01)

Patent

CA 1096090

ABSTRACT OF INVENTION The present invention relates to new graft polymers obtained from lignosulfonate and d monomer selected from acrylic acid, methacrylic acid and mixtures thereof at a pH between 1.5 to 4 in the presence of an initiator. The new graft polymers have been found to be very useful as soil conditioners and as binding reagents for agglomerating single particles of particulate materials. The graft polymers according to the invention are obtained in the form of an aqueous solution, which may be transformed into a powder by spray drying. As soil conditioners they may be applied by spraying, alone or admixed with fertilizers or pesticides and also combined with the operation of planting and soil stabilization.

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