PARTICULATE COMPOSITIONS USEFUL AS PLANT GROWING MEDIA ADDITIVES

Superabsorbent gel compositions useful as plant growing media additives are prepared in particulate form by comminuting a partially-hydrated (10-80% moisture) gel mass in the presence of a finely divided flow aid, such as kaolin. The partially-hydrated granules are more easily mixed with damp compos...

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Bibliographische Detailangaben
Hauptverfasser:	SYMIEN, SERGE A, DEHNEL, ROGER B, BOSLEY, JOHN A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES AGRICULTURE ANIMAL HUSBANDRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED DYES FERTILISERS FERTILISERS CHARACTERISED BY THEIR FORM FISHING FORESTRY HORTICULTURE HUMAN NECESSITIES HUNTING MANUFACTURE THEREOF MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05 MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP TRAPPING WATERING
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Beschreibung
Zusammenfassung:	Superabsorbent gel compositions useful as plant growing media additives are prepared in particulate form by comminuting a partially-hydrated (10-80% moisture) gel mass in the presence of a finely divided flow aid, such as kaolin. The partially-hydrated granules are more easily mixed with damp compost or other growing media, and lead to improved soil properties, especially aeration, because the process gives rise to fewer fines which would otherwise tend to glue soil particles together. Preferred gels in foam form and based on polyacrylamide/acrylate are described.