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1. (WO1983000482) PARTICULATE COMPOSITIONS USEFUL AS PLANT GROWING MEDIA ADDITIVES

Pub. No.:    WO/1983/000482    International Application No.:    PCT/GB1982/000244
Publication Date: Fri Feb 18 00:59:59 CET 1983 International Filing Date: Fri Aug 06 01:59:59 CEST 1982
IPC: A01G 31/00
C05G 3/00
C09K 17/16
C09K 17/22
Applicants: UNILEVER PLC
UNILEVER NV
BOSLEY, John, Anthony
DEHNEL, Roger, Brian
SYMIEN, Serge, Alfred
Inventors: BOSLEY, John, Anthony
DEHNEL, Roger, Brian
SYMIEN, Serge, Alfred
Title: PARTICULATE COMPOSITIONS USEFUL AS PLANT GROWING MEDIA ADDITIVES
Abstract:
Superabsorbant 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.