'moulded light weight carrier backed polyurethane foam based noise insulation for automobile'

摘要

Moulded light weight carrier backed polyurethane foam based noise insulation for automobile, comprising acoustical insulation for mainly used as engine noise shields and passenger cabin under body noise shield for Heavy, Medium and Light duty commercial vehicle, herein referred as PCP - NS / UB - 3512 having material composite layers consisting of a Carrier material made up of either wholly or partially fibrous felt natural / synthetic , virgin / regenerated ( fire resistance / non fire resistance ) with or without in combination of fire resistant rigid PU Foam with or without film lamination having an acoustical absorber layer of fire resistant PU Foam here in referred as PFRO Polyurethane Foam ( details given in patent application no 936/KOL/2011 ) and the absorber is covered with Fire resistant Non woven or Woven Fabric or Fire Resistant Film where in it maintains its fonnability, mouldability to different shape and size—as per the acoustical and ultimate product design requirement for acoustical property similar to or better from presently used such products in industry.