METHOD FOR PRODUCING BASE MATERIAL TO BE MOLDED THREE- DIMENSIONALLY TO DAMP SOUND

• Main Authors: MEYER-AHRENS SVEN, LEE BIN, BLASZKIEWICZ MICHAEL A, GUARNIERI WALTER, MATWICZYK THOMAS J
• Format: Patent
• Language: English
• Published: 14.10.2003
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMISTRY; COMPOSITIONS BASED THEREON; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SPRAYING OR ATOMISING IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To provide a method for producing a three-dimensional composite material having structural and acoustic characteristics. SOLUTION: The method for producing the three-dimensional acoustic composite material includes a process for mixing a two-component polyurethane resin containing a polyol mixture and an isocyanate or a prepolymer, a process for coating the first surface of a base material with the polyurethane resin, a process for transferring the base material coated with the resin to a hot molding tool, a process for molding the coated base material into the composite material, and a process in which the composite material is taken out from the molding tool and trimmed. COPYRIGHT: (C)2004,JPO