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US 6,460,464 B1Granted
Adhesive for ring seal in center fire ammunition
AssigneeHenkel Loctite Corporation
InventorShabbir Attarwala
Life of this patent
Estimating the term…
Abstract
The present invention provides UV/anaerobic dual cure adhesives, particularly well-suited for sealing the ring around the primer cup in center fire ammunition by UV cure and the primer cup in the cartridge by anaerobic cure.
Claims16
A radiation and anaerobically curable composition for sealing a primer cup/primer interface in center fire ammunition, comprising:
- a. (meth)acrylate component, at least a portion of which includes a monofunctional (meth)acrylate;
- b. an anaerobic cure-inducing component;
- c. a photoinitator component;
- and
- d. a placticizer component in an amount less than about 20% by weight of the total composition.
2 more elements
A process for assembling ammunition, the steps of which comprise:
- a. providing at least a partially assembled cartridge, one end of which having a pocket dimensioned and disposed to receive a primer cup;
- b. providing a primer cup dimensioned and disposed to be received by said pocket of said partially assembled cartridge;
- c. inserting said primer cup into said pocket;
- d. applying a radiation and anaerobically curable composition comprising a (meth)acrylate component, at least a portion of which includes a monofunctional (meth)acrylate;
- an anaerobic cure-inducing component;
- a photoinitator component;
- and a placticizer component in an amount less than about 20% by weight of the total composition to and about a juncture formed by the primer cup/pocket interface;
- e. exposing the composition to UV radiation sufficient to initiate cure;
- and
- f. permitting the composition in and about the primer cup/pocket interface juncture to cure under anaerobic conditions.
7 more elements
Dependencies are inferred from the claim text.