Patent ID: 8703892
Filing Date: 2014-04-22
Classification: C09D,Y10T

Abstract:
1. A curable composition for imprints, comprising at least one polymerizable monomer and a photopolymerization initiator, wherein: the curable composition for imprints comprises at least one polymerizable monomer (Ax) represented by the following formula (I): wherein Ar represents a divalent or trivalent aromatic group which may have a substituent, X represents a single bond or an organic linking group selected from an alkylene group and an oxyalkylene group, R the content of polymer ingredients having a molecular weight of at least 2000 in the curable composition for imprints is at most 2% by mass of the composition except the solvent therein, 50% by mass or more of all the polymerizable monomers contained in the curable composition are polymerizable monomers which are liquid at 25° C., when the curable composition comprises a difunctional polymerizable monomer other than the polymerizable monomer (Ax), the difunctional polymerizable monomer is selected from the group consisting of diethylene glycol monoethyl ether (meth)acrylate, dimethylol-dicyclopentane di(meth)acrylate, di(meth)acrylated isocyanurate, 1,3-butylene glycol di(meth)acrylate, EO-modified 1,6-hexanediol di(meth)acrylate, ECH-modified 1,6-hexanediol di(meth)acrylate, allyloxy-polyethylene glycol acrylate, 1,9-nonanediol di(meth)acrylate, EO-modified bisphenol A di(meth)acrylate, PO-modified bisphenol A di(meth)acrylate, modified bisphenol A di(meth)acrylate, EO-modified bisphenol F di(meth)acrylate, ECH-modified hexahydrophthalic acid diacrylate, hydroxypivalic acid neopentyl glycol di(meth)acrylate, neopentyl glycol di(meth)acrylate, EO-modified neopentyl glycol diacrylate, propyleneoxide (hereinafter referred to as “PO”)-modified neopentyl glycol diacrylate, caprolactone-modified hydroxypivalate neopentyl glycol, stearic acid-modified pentaerythritol di(meth)acrylate, ECH-modified phthalic acid di(meth)acrylate, poly(ethylene glycol-tetramethylene glycol) di(meth)acrylate, poly(propylene glycol-tetramethylene glycol) di(meth)acrylate, polyester (di)acrylate, polyethylene glycol di(meth)acrylate, polypropylene glycol di(meth)acrylate, ECH-modified propylene glycol di(meth)acrylate, silicone di(meth)acrylate, triethylene glycol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, dimethyloltricyclodecane di(meth)acrylate, neopentyl glycol-modified trimethylolpropane di(meth)acrylate, tripropylene glycol di(meth)acrylate, EO-modified tripropylene glycol di(meth)acrylate, triglycerol di(meth)acrylate, dipropylene glycol di(meth)acrylate, divinylethylene-urea and divinylpropylene-urea, and the curable composition for imprints satisfies at least one of the following (A) or (B): (A) the content of the polymerizable monomer (Ax) represented by the formula (I) in the curable composition for imprints is more than 50% by mass, relative to all the polymerizable monomers contained in the composition, or (B) the total content of polymerizable monomers which are solid at 25° C. and polymerizable monomers having a viscosity at 25° C. of 70 mPa·s or more in the curable composition for imprints is less than 50% by mass, relative to all the polymerizable monomers contained in the composition.