Processes for forming building materials comprising non-woven we

Details Processes for forming building materials comprising non-woven we Processes for forming building materials comprising non-woven we

1982-08-16

1984-03-06

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Bulk deposition of particles by differential fluid pressure

264113, B29C 500

Patent

active

044353537

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: 3356780 (1967-12-01), Cole
patent: 4146564 (1979-03-01), Garrick et al.
patent: 4375448 (1983-03-01), Appel et al.

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