HARD POLYURETHANE FOAMING RAW MATERIAL

To provide a hard polyurethane foaming raw material for foaming-in-place to be used by injecting into a steel pipe, which can form polyurethane foam expressing rust prevention to the inner surface of the steel pipe, and capable of exhibiting fire retardancy without substantially preventing the rust...

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Bibliographische Detailangaben
Hauptverfasser:	TOYODA KATSUTOSHI, SONOBE MASAYASU, NAMIKAWA KAZUTOSHI, TANAKA KOEI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	To provide a hard polyurethane foaming raw material for foaming-in-place to be used by injecting into a steel pipe, which can form polyurethane foam expressing rust prevention to the inner surface of the steel pipe, and capable of exhibiting fire retardancy without substantially preventing the rust prevention.SOLUTION: A hard polyurethane foaming raw material for foaming-in-place is used by injecting into a steel pipe. The hard polyurethane foaming raw material comprises a polyol-containing polyol composition and a polyisocyanate-containing polyisocyanate composition, and the polyol composition contains a non-halogen-containing fire retardant and a rust-preventive agent.SELECTED DRAWING: None 【課題】鋼管内に注入して用いられる現場発泡用の硬質ポリウレタン発泡原料であって、鋼管の内表面に対し防錆性を示し、かつかかる防錆性を実質的に妨げずに難燃性をも発揮可能なポリウレタンフォームを形成可能な硬質ポリウレタン発泡原料を提供する。【解決手段】鋼管内に注入して用いられる現場発泡用の硬質ポリウレタン発泡原料であり、硬質ポリウレタン発泡原料は、ポリオールを含むポリオール組成物とポリイソシアネートを含むポリイソシアネート組成物とを備え、ポリオール組成物は、非ハロゲン含有難燃剤と防錆剤とを含む。【選択図】なし