HIGH FUNCTIONAL POLYISOCYANATE
PROBLEM TO BE SOLVED: To obtain a polyisocyanate useful as a building block made of polyurethane and combining high functionality, high reactivity, low consistency and good properties. SOLUTION: (i) An addition product A is produced by reacting a diisocyanate or a polyisocyanate I with a compound ha...
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| creator | KOENIGER RAINER TREULING ULRICH DR EHE ULRIKE BRUCHMANN BERND DR RENZ HANS MUELLER-MALL RUDOLF |
| description | PROBLEM TO BE SOLVED: To obtain a polyisocyanate useful as a building block made of polyurethane and combining high functionality, high reactivity, low consistency and good properties. SOLUTION: (i) An addition product A is produced by reacting a diisocyanate or a polyisocyanate I with a compound having three or more groups reactive to the isocyanate, a compound having two groups reactive thereto or the mixture of the compounds. A reaction ratio is selected so that the product A containing an average of one group having reactivity to the isocyanate. (ii) A polyaddition product P containing an average of one group having reactivity to the isocyanate and an average of more than two isocyanate groups is formed by an intermolecular addition product. (iii) The high functional polyisocyanate is obtained by reacting the product A and/or the product P with a diisocyanate or a polyisocyanate II. |
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SOLUTION: (i) An addition product A is produced by reacting a diisocyanate or a polyisocyanate I with a compound having three or more groups reactive to the isocyanate, a compound having two groups reactive thereto or the mixture of the compounds. A reaction ratio is selected so that the product A containing an average of one group having reactivity to the isocyanate. (ii) A polyaddition product P containing an average of one group having reactivity to the isocyanate and an average of more than two isocyanate groups is formed by an intermolecular addition product. 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SOLUTION: (i) An addition product A is produced by reacting a diisocyanate or a polyisocyanate I with a compound having three or more groups reactive to the isocyanate, a compound having two groups reactive thereto or the mixture of the compounds. A reaction ratio is selected so that the product A containing an average of one group having reactivity to the isocyanate. (ii) A polyaddition product P containing an average of one group having reactivity to the isocyanate and an average of more than two isocyanate groups is formed by an intermolecular addition product. (iii) The high functional polyisocyanate is obtained by reacting the product A and/or the product P with a diisocyanate or a polyisocyanate II.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES 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 NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS |
| title | HIGH FUNCTIONAL POLYISOCYANATE |
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