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

1979-12-31

1981-06-30

Bashore, S. Leon

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 65, 71 77, 71 79, 260 175, 47 9, 47DIG10, 405264, 424358, C05G 304, C05G 302

Patent

active

042760771

ABSTRACT:
The present invention relates to a method for improving a soil structure by stabilization of aggregates and to the reagents used therefor. The reagents used are graft polymers obtained from crude lignosulfonate and monomer selected from the group consisting of vinyl cyanide (acrylonitrile), vinyl acetate, hydrolized vinyl acetate and acrylamide or combinations thereof, at a pH range of between 2 and 6 in the presence of an initiator.
The reagents obtained according to the invention are true solutions and are characterized by their low viscosity. They can be used in solution, emulsion or suspension either by spraying alone or admixed with fertilizers, pesticides or combined with the operation of planting and soil stabilization.
The reagents can be easily manufactured, being stable for prolonged periods of time. They possess outstanding properties as soil conditioners.

REFERENCES:
patent: 3370935 (1968-02-01), Adams et al.

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