Sheet or web carrying an antistatic layer

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified backing or protective layer containing

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428331, 428341, 428452, 428480, 4285375, 430531, 430533, 430538, B32B 516, G03C 176

Patent

active

050081780

ABSTRACT:
A sheet or web material being a subbed or unsubbed hydrophobic resin support or paper support coated with at least one hydrophobic resin layer having at least on one side an outermost antistatic layer containing colloidal silica, characterized in that the antistatic layer is free from any cationic surfactant and consists of at least 70% of weight of colloidal silica having an average particle size smaller thatn 7 nm and a surface area of at least 500 m2 per gram, the colloidal silica being present at a coverage of at least 50 mg per m2.

REFERENCES:
patent: 3525621 (1968-02-01), Miller

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