The invention relates to a process for preparing a graft copolymer comprising polyethylene, comprising the steps of: A) providing an ethylene copolymer comprising side chains having CC bond and B) reacting the ethylene copolymer of step A) with an azide compound in the presence of a catalyst, a free radical initiator or diphenylamine to obtain the graft copolymer, wherein the azide compound is an azide compound having a functional group or a polymer having an azide group.

An object of the present invention is to provide a light-absorbing anisotropic film having an excellent degree of alignment of a dichroic azo coloring agent; an optical laminate including the same; and an image display device using the same. The light-absorbing anisotropic film according to an embodiment of the present invention is a light-absorbing anisotropic film which is formed of a liquid crystal composition containing a dichroic azo coloring agent compound, a liquid crystalline compound, and a compound represented by Formula (1) and has a front transmittance of 60% or less, and in which a content mass ratio of the dichroic azo coloring agent compound to the liquid crystalline compound is 5% to 35% by mass.

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An object of the present invention is to provide a curable resin composition having low viscosity and being capable of forming a cured product which is excellent in the flexibility and the heat resistance. The present invention is a curable resin composition including: a (meth)acrylic group-containing vinyl-based polymer (A), a monomer (B) represented by the following Chemical formula (1), and a radical initiator (C). ##STR00001##

A photosensitive resin composition contains (i) modified partially-saponified polyvinyl acetate having a functional group introduced into a side chain thereof, (ii) tertiary nitrogen atom-containing polyamide, (iii) a photopolymerizable unsaturated compound and (iv) a photopolymerization initiator, characterized in that the above (ii) tertiary nitrogen atom-containing polyamide contains 20 to 50% by mol of a structural unit obtained from cyclohexane-dicarboxylic acid and 50 to 95% by mol of an alicyclic structural unit in total, in relation to a total of an amount of an aminocarboxylic acid unit (including a case wherein lactam is a raw material), an amount of a dicarboxylic acid unit and an amount of a diamine unit in the polyamide molecule. There is also provided a relief printing original plate which is characterized in having, on a support, a photosensitive resin layer formed by using this photosensitive resin composition.

A photosensitive resin composition contains (i) modified partially-saponified polyvinyl acetate having a functional group introduced into a side chain thereof, (ii) tertiary nitrogen atom-containing polyamide, (iii) a photopolymerizable unsaturated compound and (iv) a photopolymerization initiator, characterized in that the above (ii) tertiary nitrogen atom-containing polyamide contains 20 to 50% by mol of a structural unit obtained from cyclohexane-dicarboxylic acid and 50 to 95% by mol of an alicyclic structural unit in total, in relation to a total of an amount of an aminocarboxylic acid unit (including a case wherein lactam is a raw material), an amount of a dicarboxylic acid unit and an amount of a diamine unit in the polyamide molecule. There is also provided a relief printing original plate which is characterized in having, on a support, a photosensitive resin layer formed by using this photosensitive resin composition.

An object of the present invention is to provide a dispersion assistant that, when used for suspension polymerization of a vinyl-based compound, achieves stable production of a good polymer (vinyl-based resin) without much scale adhesion on the polymerization tank even in the cases where used in a large amount. Provided is a dispersion assistant for suspension polymerization, which comprises a polyvinyl alcohol-based polymer (A) having an acetal group (a) having an olefinic unsaturated double bond, the polymer having a saponification degree of 60 mol% or less.

An object of the present invention is to provide a dispersion assistant that, when used for suspension polymerization of a vinyl-based compound, achieves stable production of a good polymer (vinyl-based resin) without much scale adhesion on the polymerization tank even in the cases where used in a large amount. Provided is a dispersion assistant for suspension polymerization, which comprises a polyvinyl alcohol-based polymer (A) having an acetal group (a) having an olefinic unsaturated double bond, the polymer having a saponification degree of 60 mol% or less.

A comb polymer can be used for reducing a Noack evaporation loss of a lubricant composition, especially of an engine oil composition. Application of the comb polymer to the lubricant composition can bring about the desired reduction. The comb polymer can include specified amounts of macromonomer and alkyl acrylates. Resulting lubricant compositions can include the comb polymer.

A coloring composition includes a metal azo pigment, a compound having an ethylenically unsaturated bonding group, and a solvent, the metal azo pigment includes at least one kind of an anion selected from an azo compound represented by Formula (I) or an azo compound having a tautomeric structure of the azo compound represented by Formula (I), two or more kinds of metal ions, and a melamine compound, and in Formula (I), R.sup.1 and R.sup.2 each independently represent OH or NR.sup.5R.sup.6, R.sup.3 and R.sup.4 each independently represent O or NR.sup.7, and R.sup.5 to R.sup.7 each independently represent a hydrogen atom or an alkyl group.

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A color filter comprising a cured layer of a photosensitive resist composition comprising a highly reactive polyacrylate monomer and a process for the preparation thereof are provided. The color filter is especially useful for low temperature applications such as electrophoretic displays, polymer dispersed liquid crystal displays, OLED devices and the like.