Method for making an article having replicated coating with dura

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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Details

156239, 156241, 156289, 156330, 264 1, 427152, 427163, 427166, 427167, B32B 3300, B32B 2738, B32B 3126

Patent

active

040615189

ABSTRACT:
In the method for making an article having a replicated coating with a durable dielectric overcoat. A master is formed having a surface to be replicated formed thereon. A parting compound such as silicon oil is placed on the surface while under a vacuum. An optical coating is formed in reverse order, with the protective coat first and the reflective coat last, on the coated surface while in the vacuum under a low temperature to cause initial curing of the protective coat without reevaporation of the silicon oil. Thereafter, the optical coating on the master is post-cured in air at an elevated temperature to cause final curing and hardening of the protective coat. After the post-curing has been completed, the replicated part, if desired, is transferred to the part to carry the same and is mounted thereon by a sealing plastic.

REFERENCES:
patent: 2456899 (1948-12-01), Strong
patent: 2628921 (1953-02-01), Weinrich
patent: 2911682 (1959-11-01), Ewald
patent: 3080270 (1963-03-01), Lorenz

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