Method of patching liners of large glass-lined reactors

Details Method of patching liners of large glass-lined reactors Method of patching liners of large glass-lined reactors

1988-09-06

1990-07-10

Beck, Shrive

Coating processes

Restoring or repairing

427387, 427 2, 156 94, 264 36, 428428, B32B 3500

Patent

active

049406078

ABSTRACT:
Defects in the glass lining of a production-size reactor can be conveniently and inexpensively repaired by (a) applying a thin primer that contains a silane coupling agent, (b) applying a dental composite, and (c) then curing the resin of the composite. This strongly bonds the dental composite to the glass and, when the defect extends to the metal jacket of the reactor, also strongly bonds the composite to the metal. Preferably prior to step (b), the primer is covered by a light-curable adhesive that can covalently bond both to the silane coupling agent of the primer and to the resin of the dental composite. By patching the glass lining in this way, there is little danger of fire or explosion or hazard to the health of the person who applies the patch, and reactor down-time is significantly reduced compared to prior patching methods.

REFERENCES:
patent: 4179537 (1979-12-01), Rykowski
patent: 4503169 (1985-03-01), Randklev
patent: 4673354 (1987-06-01), Culler
patent: 4801528 (1989-01-01), Bennett
Hackh's Chemical Dictionary, pp. 369, 537, edited by Grant, McGraw-Hill Book Company, 1972.

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