Poliuréias à base de ipdi, hdi, seus isocianuratos e aminas

• Main Authors: JOERN VOLKER WEISS, WERNER GRENDA
• Format: Patent
• Language: Portuguese
• Published: 21.05.2002
• Edition: 7
• Subjects: 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; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

Patente de Invenção: "POLIURéIAS à BASE DE IPDI, HDI, SEUS ISOCIANURATOS E AMINAS". A presente invenção refere-se a novas poliuréias à base de isoforonodiisocianato (IPDI), hexametilenodiisocianato (HDI) e/ou seus isocianuratos e aminas, especialmente isoforonodiamina (IPD). A polyurea based on isophorone diisocyanate (IPDI) and hexamethylene diisocyanate (HDI) and/or their isocyanurate and amines of NCO/NH2 ratio 0.9-1-1 to 1 and a mean molecular weight of at least 5000 is new. An Independent claim is included for preparation of the polyurea by addition of a solvent diluted isocyanate to an amine in a solvent with stirring, heating of the solvent under reflux for 2-3 hours, cooling, separation of the polymer obtained, and vacuum drying of the polymer for 3-6 hours at 130-170 degrees C.