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FIBROUS LAMINATE FLOOR UNDERLAYMENT WITH IMPROVED ACOUSTICAL INSULATION AND BREATHABLE BARRIER PROTECTION
FIBROUS LAMINATE FLOOR UNDERLAYMENT WITH IMPROVED ACOUSTICAL INSULATION AND BREATHABLE BARRIER PROTECTION
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机译:纤维叠层地板衬砌,改善了隔音性能,并具有良好的屏障保护
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摘要
The present invention relates to a floor underlayment that may be positioned directly in contact with the underside surface of a finished floor and comprise more than one layer such as a first layer pattern-unbonded nonwoven web and a second layer microporous film. Additional layers may comprise a meltblown nonwoven layer and a spunbond layer. The floor underlayment of the present invention may exhibit a sound pressure level (SPL in dB at 800 Hz or 1600 Hz) reduction IIC of about 30 to about 40.
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