Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1976-11-05
1978-10-10
Bell, James J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156306, 156322, 156324, 428251, 428262, B29C 2704
Patent
active
041194810
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-bondingthe 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 fill-weft 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: 3360412 (1967-12-01), James
patent: 3398044 (1968-08-01), Plueddemann
patent: 3505147 (1970-04-01), Eulie
patent: 3514308 (1970-05-01), Scott
patent: 3556887 (1971-01-01), Adcock et al.
patent: 3944454 (1976-03-01), Burgheimer
Bell James J.
Hitco
Jacobs Marvin E.
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