A FLEXIBLE POLYURETHANE COMPOSITION FOR DECREASING OF IMPACT SOUND AT A BUILDING FLOOR, AND THE SPRAYING CONSTRUCTION METHOD USING THIS, AND THE FLEXIBLE POLYURETHANE SPRAY-FOAM STRUCTURE THEREOF

摘要

The present invention is a flexible polyurethane for the inter-layer impact noise reduction of the shorter inter-spray curing time is impact noise reduction effect at the same time while implementing the excellent physical properties of the structure dramatically compared to existing, architectural compositions, and methods Spray construction using the same, and, and the spray by providing the foam structure, as a whole, and it allows for excellent sound insulation effect implementation, water resistance combined and interlayer impact sound reduction material of high strength to weight impact noise and weight impact sound, detail, is excellent in thermal insulation performance and chemical resistance, durability, mechanical strength and a porous foam and implement sound absorption and vibration suppression is possible elastic body, and forming a film surface of the sound insulating membrane form, can be site customized construction and maintain airtightness and because of the self-adhesive strength of the bottom flange face plate and the releasable anti -one is available and, there is no interface between the gap and And allows the mold, and allowing implementation of the repeating system for sound insulation and sound insulation with a laminated spray, this way of working is very easy to substantially improve the productivity and convenience, the magnetic properties sustain period is very long open / repair It implements a very excellent performance, offering the advantage is almost unnecessary at the same time. ; The flexible polyurethane spray foam composition, the impact sound reduction layers spray application method