Title:
空隙充填用注入薬液組成物
Document Type and Number:
Japanese Patent JP7480504
Kind Code:
B2
Abstract:
To provide a grout chemical composition for gap filling which is low in odor during injection, can suppress scorch inside a foam after the chemical has been injected and made to fill under high liquid temperature environment, and secures excellent ground reinforcing property due to high strength.SOLUTION: A grout chemical composition for gap filling is composed of a polyol component (A) and a polyisocyanate component (B). The component (A) contains polyether polyol (A-1), a nurating catalyst (A-2) and a tertiary amine catalyst (A-3). The component (B) is a mixture of diphenylmethane diisocyanate and polyphenyl-polymethylene polyisocyanate, and NCO INDEX during mixing of the component (A) and the component (B) is within 230-350.SELECTED DRAWING: None
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Inventors:
Ryusuke Kishimoto
Kazuyuki Tanaka
Kazuyuki Tanaka
Application Number:
JP2019231764A
Publication Date:
May 10, 2024
Filing Date:
December 23, 2019
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C08G18/76; C08G18/00; C08G18/16; C08G18/18; C08G18/48; C09K17/30; E02D3/12
Domestic Patent References:
| JP2003147358A | ||||
| JP2018100346A | ||||
| JP2010222399A |