Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-01-13
1990-03-13
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156281, 1563073, 156330, 264 36, 427140, 428 63, B32B 3500
Patent
active
049080822
ABSTRACT:
A method is disclosed for the in-situ repair of damaged filter cloths in solvent dewaxing filters. The damage that can be repaired can be either or both of tears or holes. The method comprises thoroughly washing the filter cloth in the area of the damage to remove wax and oil, applying a quantity of solvent resistant adhesive to the damaged area such that the area of treatment extends beyond the hole or tear and adhesive overlays onto undamaged cloth, inserting pre-cut portions of filter cloth into the damage so as to completely fill the hole or tear but not create a bulge or cloth buildup in the face of the filter cloth where required and, finally, and optimally applying a final coating of adhesive over the repaired area.
REFERENCES:
patent: 4047994 (1977-09-01), Komatsu
patent: 4180166 (1979-12-01), Batdorf
patent: 4464494 (1984-08-01), King et al.
patent: 4519856 (1985-05-01), Lazzara
patent: 4568589 (1986-02-01), Briggs
patent: 4784777 (1988-11-01), Dellinger
Kirk-Othmer Encyclopedia of Chemical Technology, 2nd Revised Edition, vol. 8, 1965, p. 311.
McGraw-Hill Encyclopedia of Science & Technology, vol. 10, 1971, pp. 544-545.
Armstrong Scott W.
Bristow Duncan J.
Dallaire Louis C.
Ewener Patrick C.
Thompson John A.
Allocca Joseph J.
Dawson Robert A.
Exxon Research and Engineering Company
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