METHOD FOR PRIMING SURFACE OF INORGANIC STRUCTURAL MATERIAL
PURPOSE:To exhibit an excellent anchoring effect, by conducting, the titled treatment with an aq. soln. of a cold water-curing blocked isocyanate compd. obtd. by reacting a urethane prepolymer with an isocyanate-blocking agent. CONSTITUTION:A blocking agent selected from a heterocyclic compd. having...
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| creator | HIJIKATA KENJI OGAWA MASAYUKI HOSOKAWA NORITAKA |
| description | PURPOSE:To exhibit an excellent anchoring effect, by conducting, the titled treatment with an aq. soln. of a cold water-curing blocked isocyanate compd. obtd. by reacting a urethane prepolymer with an isocyanate-blocking agent. CONSTITUTION:A blocking agent selected from a heterocyclic compd. having a skeleton of -N=C-NH-, hydroxypyridine, hydroxyquinoline and a substd. phenol having a pKa of 5-9.5, is reacted with a urethane prepolymer contg. at least two free NCO groups obtd. by reacting a polyisocyanate with a hydrophilic polyol prepolymer. Said blocking agent is reacted with said urethane prepolymer in an equivalent ratio of OH or NH to NCO of 0.2-2. The surface of an inorg. structural material is primed with an aq. soln. of the resulting cold water-curing blocked isocyanated compd. |
| format | Patent |
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CONSTITUTION:A blocking agent selected from a heterocyclic compd. having a skeleton of -N=C-NH-, hydroxypyridine, hydroxyquinoline and a substd. phenol having a pKa of 5-9.5, is reacted with a urethane prepolymer contg. at least two free NCO groups obtd. by reacting a polyisocyanate with a hydrophilic polyol prepolymer. Said blocking agent is reacted with said urethane prepolymer in an equivalent ratio of OH or NH to NCO of 0.2-2. 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CONSTITUTION:A blocking agent selected from a heterocyclic compd. having a skeleton of -N=C-NH-, hydroxypyridine, hydroxyquinoline and a substd. phenol having a pKa of 5-9.5, is reacted with a urethane prepolymer contg. at least two free NCO groups obtd. by reacting a polyisocyanate with a hydrophilic polyol prepolymer. Said blocking agent is reacted with said urethane prepolymer in an equivalent ratio of OH or NH to NCO of 0.2-2. The surface of an inorg. structural material is primed with an aq. soln. of the resulting cold water-curing blocked isocyanated compd.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | 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 |
| title | METHOD FOR PRIMING SURFACE OF INORGANIC STRUCTURAL MATERIAL |
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