Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material
Patent
1978-05-24
1982-03-30
Silverman, Stanley S.
Stock material or miscellaneous articles
Structurally defined web or sheet
Nonplanar uniform thickness material
428161, 428162, 428251, 428262, B32B 330, B32B 1904
Patent
active
043224644
ABSTRACT:
A high temperature woven refractory fabric is coated by preheating the surface of the fabric by means of actinically matched radiation, suitably infra-red, and then fusion-bonding the inner surface of a thermoplastic film such as polyurethane to at least one surface of the fabric to fusion-bond the film thereto. The warm fusion-bonded film is then processed through a non-heated nip-roll assembly in which at least one of the rollers has a soft facing such as rubber which impresses the film into the interstitial fillweft woven intersections to form a fabric-appearing coated product. The infra-red wave length is selected for maximum absorption by the fabric and the intensity of the radiation and speed of the film are controlled to provide sufficient but not excessive fusion or melting of the film. The coating apparatus includes a control device in which an infra-red sensing non-contact thermometer senses the temperature of the fabric as it leaves the infra-red heater and develops a control signal that controls the speed of the fabric through the system.
REFERENCES:
patent: 2684319 (1954-07-01), Arnold
patent: 3222237 (1965-12-01), McKelvy
patent: 3266966 (1966-08-01), Patchell
patent: 3360412 (1967-12-01), James
patent: 3398044 (1968-08-01), Plueddemann
patent: 3505147 (1970-04-01), Eulie
patent: 3514308 (1970-05-01), Scott, Jr. et al.
patent: 3556887 (1971-01-01), Adcock
patent: 3944454 (1976-03-01), Burgheimer
Hitco
Jacobs Marvin E.
Silverman Stanley S.
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