Polyimide composition and method for protecting photoreactive ce

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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136244, 136251, 136259, C08G 6926

Patent

active

048640166

ABSTRACT:
A protective coating for solar cells, particularly solar cells positioned in space and which coating is a polyimide which is colorless, transparent, relatively non-brittle, has a high degree of thermal stability and readily transmits solar radiation without appreciable degradation. The coating is heat resistant and does not degrade significantly when exposed to ultraviolet radiation, and is highly effective in repelling low energy proton particles. In a preferred embodiment, the protective polymide coating is a polymer having the following recurring structural unit: ##STR1##

REFERENCES:
patent: 4542257 (1985-09-01), Fraser et al.

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