ROADBED STABILIZER COMPOSED OF ONE-LIQUID MOISTURE-CURING POLYURETHANE PREPOLYMER COMPOSITION

• Main Authors: MURATA YOSHITAKA, OZAWA HAJIME, YOSHIHARA YUICHI, YAMAMOTO FUMIO, HIROSUE YASUSHI, SHIGEMORI TOMOKAZU, KATAMURA KOICHI
• Format: Patent
• Language: English
• Published: 26.02.2004
• Edition: 7
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; DYES; FIXED CONSTRUCTIONS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERMANENT WAY; PERMANENT-WAY TOOLS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide a roadbed stabilizer composed of a polyurethane prepolymer composition for holding sufficient fixing strength in a short specific period requiring lateral resistance force after spraying the roadbed stabilizer, and easily thrust and leveled down by a multiple tie tamper after the period passes. SOLUTION: This roadbed stabilizer is composed of a one-liquid moisture-curing polyurethane prepolymer composition including a diluent and an isocyanate end polyurethane prepolymer obtained from an aromatic polyisocyanate and an active hydrogen including compound, and mutually fixes ballast by being sprayed on a roadbed. A hydroxyl group including compound including an oxyethylene group is used as a component of the active hydrogen including compound. COPYRIGHT: (C)2004,JPO