Admixture of 2,4,6-tris(dimethyl aminomethyl)phenyl as a curing agent for an epoxy thread locking composition
AssigneeThe Oakland Corporation
InventorRichard B. Wallace
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Abstract
A thread lock fastener and the method of operation thereof, in which threaded members are locked together by a locking compound including epoxy resin cured in place by approximately an equal amount of Tris (dimethylaminomethyl) phenol as an activator. The thread lock exhibits an unexpectedly high torque locking action and an unexpectedly high resistance to elevated temperatures.
Claims12
A high torque, high temperature resistant thread locking mixture acting between confronting surfaces of a pair of threaded members comprising epoxy resin and a specific phenol curing agent consisting of a mixture of 2, 4, 6 - Tris (dimethylaminomethyl) phenol in approximately equal amounts by volume.
A threaded fastener having deposited in the thread grooves thereof segregated, adjacent, protectively sealed deposits of fluid epoxy monomer and the fluid curing agent 2, 4, 6 - Tris (dimethylaminomethyl) phenol in which the sealing means is adapted to rupture when the fastener is engaged with a mating threaded member, in which the epoxy and the curing agent are in approximately equal amounts by total volume.
A fluid mixture for application to the threads of a threaded fastener for locking the fastener to a mating threaded member, said mixture composed essentially of uncured fluid epoxy monomer, and an approximately equal amount of 2, 4, 6 - Tris (dimethylaminomethyl) phenol as a curing agent for the resin.
Dependencies are inferred from the claim text.