processo para a produção de materiais compósitos

• Main Authors: SEBASTIAN DE NARDO, DIRK HOPPE, RAINER LOMOELDER, CHRISTOPH NACKE
• Format: Patent
• Language: Portuguese
• Published: 14.08.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

processo para a produção de materiais compósitos. a invenção apresenta um processo para a produção de materiais compósitos. A composite is produced by I. producing a reactive composition containing A) at least one organic diisocyanate and/or polyisocyanate; B) at least one compound having at least one functional group reactive toward NCO groups, wherein the ratio of NCO groups of A) and the functional groups of B) varies from 1:2 to 2:1; C) a catalyst mixture containing C1) at least one titanium compound and C2) at least one bismuth compound in a C1:C2 ratio of 100:1 to 1:100; and D) optionally, an additive; wherein the amounts of A)-D) add up to 100% by weight, II. directly impregnating a fibrous carrier with the composition from I., to obtain an impregnated fibrous carrier, III. shaping the impregnated fibrous carrier to give a molding, and IV. curing the reactive composition I.