Soil erosion prevention agent excellent in freeze-thaw stability
AssigneeDenka Company Limited
InventorsKoichi Fukuda, Hironori Konishi, Kazuhiro Kote
Life of this patent
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Abstract
The present invention provides a soil erosion prevention agent which is excellent in the freeze-thaw stability while maintaining the soil erosion prevention effect. When a toluene-insoluble matter of the water-borne resin emulsion is 60 mass % or more and a content of the water-soluble polymer in the soil erosion prevention agent is 1 to 7 mass %, preferably 3 to 5 mass %, the soil erosion prevention agent excellent in the freeze-thaw stability is provided and suitable for greening and a spraying material. The water-borne resin emulsion is preferably a resin containing a structural unit derived from vinyl acetate, or an ethylene-vinyl acetate copolymer emulsion.
Claims5
A spraying material comprising a soil erosion prevention agent and at least one member-selected from the group consisting of a bark compost, a sphagnum peat, a sandy soil, a seed and a fertilizer, wherein the soil erosion prevention agent comprises:
- a water-borne resin emulsion;
- and
- a water-soluble polymer, wherein
- a toluene-insoluble matter of the water-borne resin emulsion is 60 mass % or more, and
- a content of the water-soluble polymer in the soil erosion prevention agent is 3 to 5 mass %.
Dependencies are inferred from the claim text.