Provided is a copolymer which has a mass average molecular weight (Mw) of 240,000 or greater and 3,500,000 or less, a structural unit derived from an acrylate (B1) and a structural unit derived from aromatic vinyl (B2), and a branched structure.

Provided is a copolymer which has a mass average molecular weight (Mw) of 240,000 or greater and 3,500,000 or less, a structural unit derived from an acrylate (B1) and a structural unit derived from aromatic vinyl (B2), and a branched structure.

The present invention relates to a photo-curable liquid optically clear adhesive composition, to a cured adhesive and an article produced therefrom, and to the use thereof.

The present invention relates to a photo-curable liquid optically clear adhesive composition, to a cured adhesive and an article produced therefrom, and to the use thereof.

A method for forming a photoresist relief image including applying a layer of a coating composition on a substrate; and disposing a layer of a photoresist composition on the layer of the coating composition, wherein the coating composition comprises an amine-containing polymer comprising a hydrocarbon-substituted amino group and having nitrogen atoms in an amount from 3 to 47 weight percent, based on a total weight of the amine-containing polymer.

A method for forming a photoresist relief image including applying a layer of a coating composition on a substrate; and disposing a layer of a photoresist composition on the layer of the coating composition, wherein the coating composition comprises an amine-containing polymer comprising a hydrocarbon-substituted amino group and having nitrogen atoms in an amount from 3 to 47 weight percent, based on a total weight of the amine-containing polymer.

The present invention provides an alicyclic epoxy acrylate compound that can have high heat resistance in the form of a cured product when contained in a curable composition, a curable composition, and a cured product.

An alicyclic epoxy acrylate compound represented by the following Formula (1) where A denotes an oxygen atom and a curable composition comprising thereof are used:

##STR00001##

wherein one of R.sub.1 and R.sub.2 is a (meth)acryloyloxy group, the other of R.sub.1 and R.sub.2 is a hydrogen atom, R.sub.3 to R.sub.20 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, and an alkoxy group, and A is an oxygen atom or A is not present, and a carbon atom to which R.sub.8 binds and a carbon atom to which R.sub.9 binds together form a double bond.

The present invention provides an alicyclic epoxy acrylate compound that can have high heat resistance in the form of a cured product when contained in a curable composition, a curable composition, and a cured product.

An alicyclic epoxy acrylate compound represented by the following Formula (1) where A denotes an oxygen atom and a curable composition comprising thereof are used:

##STR00001##

wherein one of R.sub.1 and R.sub.2 is a (meth)acryloyloxy group, the other of R.sub.1 and R.sub.2 is a hydrogen atom, R.sub.3 to R.sub.20 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, and an alkoxy group, and A is an oxygen atom or A is not present, and a carbon atom to which R.sub.8 binds and a carbon atom to which R.sub.9 binds together form a double bond.

Provided is a thermosensitive recording medium having a sufficient water resistance to moisture and humidity, such as for outdoor use in rainy weather and the like, and also having a superior color developing sensitivity, print image quality when printing at high speed, ink fixability and solvent resistance and the like. As the protective layer comprises a specific silane-modified acrylic resin which is an aqueous emulsion of core-shell type p articles, in a thermosensitive recording medium having a thermosensitive recording layer on a substrate and a protective layer on the thermosensitive recording layer, the thermosensitive re cording medium has a sufficient water resistance and also has a superior color developing sensitivity, print image quality when printing at high speed, ink fixability and solvent resistance and the like.

Provided is a thermosensitive recording medium having a sufficient water resistance to moisture and humidity, such as for outdoor use in rainy weather and the like, and also having a superior color developing sensitivity, print image quality when printing at high speed, ink fixability and solvent resistance and the like. As the protective layer comprises a specific silane-modified acrylic resin which is an aqueous emulsion of core-shell type p articles, in a thermosensitive recording medium having a thermosensitive recording layer on a substrate and a protective layer on the thermosensitive recording layer, the thermosensitive re cording medium has a sufficient water resistance and also has a superior color developing sensitivity, print image quality when printing at high speed, ink fixability and solvent resistance and the like.