Building materials comprising non-woven webs

Details Building materials comprising non-woven webs Building materials comprising non-woven webs

1983-09-30

1984-10-09

McCamish, Marion E.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

156 624, 156 628, 264510, 428171, 428172, 428281, 428286, 428287, 428288, B32B 514

Patent

active

044761759

ABSTRACT:
A mixture of binder and fibrous material is introduced into the upper regions of a mat-forming zone. The mixture is intersected by a horizontally or upwardly directed air stream and entrained therein, then layered onto at least one foraminous wire by exhausting the entraining air through said foraminous wire or wires. By reducing turbulence and by controlling the manner in which the particulate matter is deposited upon the foraminous wires, uniform non-woven webs can be obtained which may be used in a variety of ways to form versatile building products.

REFERENCES:
patent: 4265979 (1981-05-01), Baehr
patent: 4394411 (1983-07-01), Krull

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