SILANE-MODIFIED POLYUREHANE RESIN, ITS PRODUCTION AND USE THEREOF AS MOISTURE-CURING RESIN

• Main Authors: ROESLER RICHARD R, SCHMALSTIEG LUTZ DR
• Format: Patent
• Language: English
• Published: 25.04.2000
• Edition: 7
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; 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; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC CHEMISTRY; 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

PROBLEM TO BE SOLVED: To obtain the subject resin not having conventional defects such as the preparation of a slow curing additional component, a high cost, or the like, by reacting a highly functional polyol with a compound having isocyanate, urea and an alkoxysilane. SOLUTION: This silane-modified polyurethane resin is obtained by introducing an alkoxysilane as a reaction product produced by reacting (A) a polyol having >=4 functional value and >=200 equivalent with (B) a compound having urea, NCO and an alkoxysilane, and expressed by the formula [X is an organic group inert, at <100 deg.C against isocyanate group (NCO), provided that at least one of them is an alkoxy; Y is a 1-8C alkylene; R is a monomeric isocyanate containing n+1 NCO or a residue obtained by removing NCO from a polyisocyanate adduct; R1 is an organic group inert at <=100 deg.C against NCO; (n) is 1-3] in an equivalent ratio (NCO/OH) of (0.5:1)-(1:1), and has 0.2-4.5 wt.% alkoxysilane content and, as necessary, hydroxyl group.