Adhesive for high temperature thread locking in hydraulic system

Details Adhesive for high temperature thread locking in hydraulic system Adhesive for high temperature thread locking in hydraulic system

1986-10-09

1988-05-03

Nilson, Robert G.

Fluid handling

Processes

Cleaning, repairing, or assembling

1375395, F16K 1104

Patent

active

047413522

ABSTRACT:
A heat curable epoxy adhesive composition has been developed which is substantially insoluble in cold hydraulic fluid before it is cured and resistant to degradation in hot hydraulic fluid after it is heat cured. The adhesive comprises a diglycidyl ether of bisphenol-A, a lesser amount of an epoxy novolac resin and a catalytic amount of 2-ethyl-4-methyl imidazole curing agent. The adhesive is particularly adapted to automatically and permanently calibrate the relief pressure of check valves in hydraulic systems.

REFERENCES:
patent: 2997962 (1961-08-01), Wysong
patent: 3107417 (1963-10-01), Jaquish
patent: 3297049 (1967-01-01), Moskovitz

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