Nissan Chemical Industries Limited

Nissan Chemical Corporation

Kayo Takeda

Takuji Yoshimoto

Shojiro Yukawa

Yuki Hoshino

Provided are: a cured film-forming composition whereby a underlayer film for image formation formed from the composition exhibits high liquid repellency (lyophobicity) and lyophilic/liquid-repellent properties of the underlayer film can be easily changed even when exposed to a low amount of ultraviolet radiation; and a cured film obtained using the composition. The cured film-forming resin composition is characterized by containing: a polymer comprising a structural unit derived from a first monomer having the structure of formula (1) as component (A); a polymer other than component (A), which is a polymer in which the content of fluorine relative to the overall weight of the polymer is lower than in component (A), as component (B); a photoacid generator as component (C); and a solvent. (In the formula, Rdenotes hydrogen or a methyl group, and Rdenotes a fluorine-containing group able to be detached together with the oxygen atom bonded to R.) 

Cured film-forming composition

A charge-transporting thin film having excellent flatness can be obtained with good repeatability using the charge-transporting varnish of the present invention, which contains: a charge transportation substance comprising a charge-transporting monomer or a charge-transporting oligomer or polymer having a number-average molecular weight of 200-50,000, or a charge transporting material comprising the charge transportation substance and a dopant substance; and a mixed solvent including at least one type of good solvent and at least one type of poor solvent; the absolute value of the boiling point difference &#x394;T&#xb0; C. of the good solvent and the poor solvent satisfying the relation |&#x394;T|&#x3c;20&#xb0; C.; the viscosity at 25&#xb0; C. being 7.5 mPa&#xb7;s or less; the surface tension at 23&#xb0; C. being 30.0-40.0 mN/m; and the charge-transporting material being dissolved or uniformly dispersed in the mixed solvent.

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Funabashi, Japan

Kayo Takeda