Polymer interlayers having improved sound insulation properties

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United States of America Patent

PATENT NO 10354636
APP PUB NO 20180053495A1
SERIAL NO

15799451

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Abstract

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A polymer interlayer comprising a layer comprising a poly(vinyl acetal) resin having a residual hydroxyl content and a residual acetate content, and a plasticizer, wherein the residual hydroxyl content, the residual acetate content and the plasticizer are selected such that the polymer interlayer has at least one glass transition temperature less than about 20° C. and a peak tan delta of greater than 1.29, and a glass panel having a configuration of 2.3-mm glass//interlayer//2.3-mm glass and at 20° C. has a transmission loss, TLw, of greater than 41 decibels as measured by weighted average sound transmission loss at 2000 to 8000 Hz, and a transmission loss, TLc, of greater than 38 decibels at the coincident frequency is disclosed.

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Patent Owner(s)

Patent OwnerAddress
SOLUTIA INC575 MARYVILLE CENTRE DRIVE ST LOUIS MO 63141

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lu, Jun East Longmeadow, US 403 8735

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