Title: Polyurethane material for reinforcing and water stopping in mining
Application Number: 85103075 Application Date: 1985.04.22
Publication Number: 1007866 Publication Date: 1987.01.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08G18/72,C08K5/54,C08L95/00,C09K17/00,E02D3/12
Applicant(s) Name: Beijing Mining Inst. of Coal Sci. Inst., Ministry Address:
Inventor(s) Name:
Attorney & Agent: LIN SUZHEN LIAO LIQUAN
Abstract:
     Phenolic tar is used as an additive for the mixed pdyether component, and the surface to be reinforced and water-stopped is treated with alcoholic solution of organo silicon coupling agent. This method not only reduces the material cost in a great measure, but also considerablely increases the adhesive strength and therefore ensures better reinforcing and water-stopping effects. This polyurethane material may be used for reinforcing and water-stopping the broken rocks in coal mine and metal mine.
Time: 9
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