Dic Corporation

Shin Sasamoto

Hideya Suzuki

Kiyofumi Takano

Takeshi Isonaka

Hirokazu Saito

Akira Takano

Youzou Yamashina

Jun Noguchi

Objects are to provide a fluorine-containing active energy ray curable resin which may be suitably used as a surfactant in an aqueous active energy ray curable resin composition, to provide an active energy ray curable resin composition including the resin, and to provide a cured product obtained by curing the composition. Specifically, a fluorine-containing active energy ray curable resin is provided which includes a polymer structure (a1) derived from a radically polymerizable unsaturated monomer, a poly(perfluoroalkylene ether) chain (a2), a radically polymerizable unsaturated group (a3), and an acid group forming a neutral salt structure (a4). Also provided are a surfactant including the fluorine-containing active energy ray curable resin; an active energy ray curable resin composition including the fluorine-containing active energy ray curable resin, an active energy ray curable hydrophilic resin other than the fluorine-containing active energy ray curable resin, and water; and a cured film of the composition.

Fluorine-containing active energy ray curable resin, surfactant, active energy ray curable resin composition, and cured film

A fluorine-containing novolac resin represented by the following formula, as well as a fluorine based surfactant and a fluorine based surfactant composition, which include the fluorine-containing novolac resin. In the formula, R represents a fluorinated alkyl-containing substituent, R' represents a hydrogen atom or a methyl group, R&#x2033; represents a hydrogen atom or a non-fluorinated substituent, &#x2014;X&#x2014; represents any one of following four types of linking groups, &#x2014;X&#x2032; represents any one of three following types of substituents, n represents 0 or an integer of 1 or more, m represents an integer of 1 or more, and n+m is an integer of 2 or more. 

Fluorine-containing novolac resin, fluorine-containing surfactant, fluorine-containing surfactant composition, and resin composition

A UV-curable composition for optical discs contains a fluorine-containing UV-curable resin having a poly(perfluoroalkylene ether) chain and a UV-curable group. The fluorine-containing UV-curable resin exhibits good compatibility with the composition and satisfactorily localizes in and near a surface of a coating film. Thus, the composition can be used to form an outermost layer of an optical disc such that the droplet size of grease such as that constituting fingerprints adhering to the outermost layer is reduced and scattering of light having a short oscillation wavelength passing through the outermost layer is suppressed. Accordingly, an optical disc on and from which signals can be satisfactorily recorded and read is formed.

UV-curable composition for optical discs and optical disc

The present invention relates to an active-energy-ray-curable coating composition containing, as essential components, a radical-polymerizable resin (I) containing a polymer structure (&#x3b1;) of a radical-polymerizable unsaturated monomer and a poly(perfluoroalkylene ether) chain (&#x3b2;), and having a resin structure in which a plurality of the polymer structures (&#x3b1;) are linked to each other with the poly(perfluoroalkylene ether) chain (&#x3b2;) therebetween and the polymer structures (&#x3b1;) each have a radical-polymerizable unsaturated group at a side chain thereof; and a polymerization initiator (II). The active-energy-ray-curable coating composition can be used as a coating material that imparts surface properties such as stain-proof properties.

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Ichihara, Japan

Shin Sasamoto