Title:
SOIL CONDITIONER
Document Type and Number:
Japanese Patent JPH02175787
Kind Code:
A
Abstract:
PURPOSE: To obtain a soil conditioner composed mainly of a sulfonated PS foam or its salt and capable of imparting excellent water retentivity, fertilizer retentivity, and air permeability to soil by sulfonating a PS foam even to the depths thereof with a sulfonating agent and, if necessary, forming a salt thereof.
CONSTITUTION: A PS foam is sulfonated even to the depths thereof with at least one sulfonating agent selected from, e.g. fuming sulfuric acid, chloro- or fluorosulfonic acid, and SO3, and if necessary, treated with, e.g. an alkali (alkaline earth) metal hydroxide or chloride (e.g. CaCl2) to form a salt thereof.
Inventors:
SAKOTA NAOICHI
OHARA NORIO
OOHARA SEIKO
OHARA NORIO
OOHARA SEIKO
Application Number:
JP17435488A
Publication Date:
July 09, 1990
Filing Date:
July 12, 1988
Export Citation:
Assignee:
SAKOTA KAGAKU KAIHATSU KENKYUS
ASAHI CHEMICAL CO
ASAHI CHEMICAL CO
International Classes:
C09K17/00; C05G3/80; C09K17/16; C09K17/20; C09K101/00; (IPC1-7): C09K17/00
Attorney, Agent or Firm:
Hiroshi Ozeki
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