C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 163/00 (2006.01) B29C 63/36 (2006.01) C09J 11/02 (2006.01) C09J 163/02 (2006.01) F16L 55/165 (2006.01)
Patent
CA 2198999
There is provided an adhesive composition for use as an adhesive agent for bonding a flexible lining tube on to the internal surface of an existing old pipe. Such an adhesive composition comprises: a) an epoxy resin; b) a thixotropy agent mainly containing silica fine particles; c) a lubricant mainly containing spheroidal fine particles; d) a curing agent having a sufficient compatibility with the thixotropy agent, and being used in a sufficient amount to cure the epoxy resin In particular, the above components a), b), c) together form a main agent, and the above components b) and d) together form an auxiliary agent. Before use, the main agent and the auxiliary agent are separated from each other. When in use, the main agent and the auxiliary agent are mixed together, so as to form the adhesive composition for use as an adhesive agent for bonding a flexible lining tube on to the internal surface of the existing old pipe.
L'invention porte sur une composition d'adhésif servant à coller un tube de revêtement flexible sur la surface interne d'un vieux tuyau existant. Cette composition d'adhésif comprend : a) une résine époxyde; b) un agent thixotropique contenant des particules fines de silice; c) un lubrifiant contenant principalement des particules fines sphériques; d) un agent de durcissement ayant une compatibilité suffisante avec l'agent thixotropique et utilisé en quantité suffisante pour durcir la résine époxyde. En particulier, les composantes a), b), c) susmentionnées forment ensemble un agent principal, et les composantes b) et d) susmentionnées forment ensemble un agent auxiliaire. Avant l'utilisation, l'agent principal et l'agent auxiliaire sont séparés l'un de l'autre. Au cours de l'utilisation, l'agent principal et l'agent auxiliaire sont mélangés ensemble, de manière à former une composition d'adhésif pour coller un tube de revêtement flexible sur la surface interne d'un vieux tuyau existant.
Itagaki Masaaki
Sato Yukio
Shinkado Kiyoshi
Toyoda Shigeru
Yagi Shuichi
Ridout & Maybee Llp
Three Bond Co. Ltd.
Three Bond Unicom Co. Ltd.
Tokyo Gas Co. Ltd.
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