UV/visible light and anaerobic curable composition
View Patent ↗This invention relates to a visible light or UV/visible light and anaerobically curable composition for encapsulating the surface of the primer mix disposed in the primer cup, particularly for use in center fire ammunition.
1. 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, in said primer cup is disposed a primer mix;
c. applying a composition over the primer mix disposed in the primer cup;
d. exposing the composition to UV/visible radiation, sufficient to initiate cure;
e. permitting the composition to cure under anaerobic conditions; and
f. inserting said primer cup into said pocket, wherein said composition is a UV/visible radiation and anaerobically curable composition, comprising:
a. (meth)acrylate component;
b. an anaerobic cure-inducing component; and
c. a photoinitiator component comprising a UV/visible light cure photoinitiator.
2. Ammunition comprising:
a bullet forming the front end of the ammunition, to which the bullet is attached to a cartridge casing;
a cartridge case forming the back end of the ammunition, in which is a primer pocket dimensioned and disposed to receive a primer cup;
a primer cup dimensioned and disposed to be received by the primer pocket, in said primer cup is disposed a primer mix and an anvil; and
a UV/visible radiation and anaerobically curable composition, comprising:
a. (meth)acrylate component;
b. an anaerobic cure-inducing component; and
c. a photoinitiator component comprising a UV/visible light cure photoinitiator dispensed over the primer mix and anvil in the primer cup, after having been exposed to radiation in the UV/visible range of the electromagnetic spectrum, and anaerobic conditions.