Superabsorbent resin composition

JP2026103227APending Publication Date: 2026-06-24SANYO CHEM IND LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
SANYO CHEM IND LTD
Filing Date
2024-12-12
Publication Date
2026-06-24

AI Technical Summary

Benefits of technology

【0007】 本発明によれば、初期吸水速度に優れ、作物の生長の初期段階(発芽段階)に十分な水を作物に供給することができる高吸水性樹脂組成物を提供することができる。

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Abstract

The present invention aims to provide a superabsorbent resin composition that exhibits excellent initial water absorption rate and can supply sufficient water to crops during the early stages of crop growth (germination stage). [Solution] A superabsorbent polymer composition comprising a crosslinked product of a polysaccharide having hydrophilic groups and / or a crosslinked product of a modified polysaccharide, and a compound having carboxyl groups and / or ester groups, The solubility parameter (SP value) of the compound having the carboxyl group and / or ester group is 9.5 to 15 (cal / cm³). 3 ) 1 / 2 A superabsorbent polymer composition wherein the total content of the compounds having carboxyl groups and / or ester groups is 1 to 25% by weight based on the weight of the superabsorbent polymer composition.
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Claims

1. A superabsorbent polymer composition comprising a crosslinked product of a polysaccharide having hydrophilic groups and / or a crosslinked product of a modified polysaccharide, and a compound having carboxyl groups and / or ester groups, The solubility parameter (SP value) of the compound having the carboxyl group and / or ester group is 9.5 to 15 (cal / cm³). ３ ) １／２ A superabsorbent polymer composition wherein the total content of the compounds having carboxyl groups and / or ester groups is 1 to 25% by weight based on the weight of the superabsorbent polymer composition.

2. The superabsorbent polymer composition according to claim 1, wherein the hydrophilic group is at least one group selected from the group consisting of a hydroxyl group, an acidic group, a basic group, and an oxyalkylene group having 2 to 3 carbon atoms.

3. The superabsorbent polymer composition according to claim 1, wherein the hydrophilic group is at least one selected from the group consisting of a carboxyl group, a phosphonyl group, and a sulfonyl group.

4. A superabsorbent resin composition according to claim 1, used as a soil water retention agent.

Citation Information

Patent Citations

  • Horticultural water retentive agent

    JP1987273283A

  • Highly water-absorptive resin and its preparation method

    JP2008280429A