METHOD FOR PREVENTING MATERIAL FROM BEING DAMAGED BY MATERIAL-TRANSPORTING MACHINERY AND MATERIAL

PROBLEM TO BE SOLVED: To provide a method whereby materials are prevented from being damaged by material-transporting machinery and materials for a long term without producing a large amt. of waste by forming a polyurea resin layer by applying and simultaneously reacting an isocyanate component and...

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Bibliographische Detailangaben
Hauptverfasser:	WATANABE MITSUAKI, INOUE ATSUSHI, KUSANO TAKUO, UENAKA SHOZO, IZUMO KOJI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method whereby materials are prevented from being damaged by material-transporting machinery and materials for a long term without producing a large amt. of waste by forming a polyurea resin layer by applying and simultaneously reacting an isocyanate component and a polyamine component on the surfaces to be brought into contact with materials transported, among the surfaces of material-transporting machinery and materials. SOLUTION: (A) An isocyanate component comprising either an org. polyisocyanate a1 or a partial prepolymer a2 formed by reacting a part of isocyanate groups with a polyol having a mol.wt. of 200-800 and (B) a polyamine component comprising 100 pts.wt. polyoxyalkylene polyamine b1 having at least two aliph. amino groups and an average mol.wt. of 1,000-10,000 and 15-100 pts.wt. active arom. diamine b2 (other than toluenediamine) having no electron- attracting group on the arom. ring and having a 1-5C alkyl group bonded to the carbon atom adjacent to the carbon atom bonded to an amino group in an equivalent ratio of NH2 group/NCO group of 0.7-1.5 are mixed, spray-applied and cured.