Invention Grant
- Patent Title: Plain surface acoustical product and coating therefor
- Patent Title (中): 平面声产品及其涂层
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Application No.: US555386Application Date: 1995-11-09
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Publication No.: US5874161APublication Date: 1999-02-23
- Inventor: James D. Pape , Darryl L. Sensenig
- Applicant: James D. Pape , Darryl L. Sensenig
- Applicant Address: PA Lancaster
- Assignee: Armstrong World Industries, Inc.
- Current Assignee: Armstrong World Industries, Inc.
- Current Assignee Address: PA Lancaster
- Main IPC: B27N7/00
- IPC: B27N7/00 ; C09D5/00 ; C09D5/02 ; E04B1/84 ; E04B1/86 ; B32B5/16
Abstract:
This invention describes two products both with a plain, nonperforated surface visual consisting of a fiberboard substrate with or without a laminated porous nonwoven scrim and then a finished painted surface. The finish painted surface decorates or finishes the board, but most important, must remain acoustically transparent to retain the sound absorption properties of the fiberboard prior to painting. The fiberboard substrate is made to be porous or modified with hole perforations to cause it to be a good sound absorber. If the fiberboard substrate is sufficiently porous without hole perforations, then the sprayable, high solids, porous paint can be directly applied. If hole perforations are used to improve the sound absorption properties of the board substrate, then a porous, nonwoven scrim is attached and painted using the same high solids porous paint. This painted scrim must be sufficiently optically opaque to hide the hole punched board, yet sufficiently open to render it acoustically transparent. The inventions also include the paint coating alone or the paint/scrim coating alone.
Public/Granted literature
- US5150611A Flow sensor Public/Granted day:1992-09-29
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