Primer composition and a process for producing a coated product

Coating processes – Optical element produced – Transparent base

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428412, B32B 2700

Patent

active

043117325

ABSTRACT:
In accordance with this invention, there is provided a primer composition prepared by dissolving in an organic solvent at least one diepoxy compound selected from the group consisting of:
(1) polyalkylene glycol diglycidyl ether of the formula; ##STR1## (2) poly(alkylene glycol) diglycidyl ether of the formula; ##STR2## and (3) diepoxide derived from a bisphenol of the formula; (wherein R.sub.1 is a linear or branched alkylene group having less than 8 carbon atoms; R.sub.2 is a linear or branched alkyl group having less than 4 carbon atoms, R.sub.3 is a linear or branched alkylene group having less than 8 carbon atoms, or a binding group selected from the class consisting of ##STR3## l, m and n are each an integer of from 0 to less than 10, the sum of l and m being more than 1).
Also in accordance with the invention, there is provided a process for producing a coated product using such primer composition.

REFERENCES:
patent: 3057746 (1962-10-01), Edmonds
patent: 3111420 (1963-11-01), Boenig
patent: 3510339 (1970-05-01), Wile
patent: 3721598 (1973-03-01), Marcey
patent: 3878132 (1975-04-01), Bertram
patent: 4073967 (1978-02-01), Sandvig
patent: 4121014 (1978-10-01), Shaffer

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