Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1989-05-08
1993-02-09
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428284, 428290, 428298, 4289044, 428920, D04H 108
Patent
active
051851970
ABSTRACT:
This invention relates to the construction and manufacture of lightweight fibrous acoustical wall and ceiling panels. The acoustical panel is comprised of a lightweight fiberglass core to which a white or light colored glass mat is applied. The glass mat provides a relatively stiff surface to the fiberglass and at the same time bridges irregularities inherent in lightweight acoustical fiberglass core materials. The white or light colored glass mat covers the natural yellow or light brown color of the core material sufficiently to provide a suitable base to which multicolored flakes with an adhesive binder can be applied using a spray tecnique.
REFERENCES:
patent: 3908059 (1980-10-01), Stern et al.
patent: 4756955 (1988-07-01), Rias
Ryan Patrick J.
Weisburger R. C.
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