A latex composition having a nitrile rubber containing an ,-ethylenically unsaturated nitrile monomer unit and a conjugated diene monomer unit, wherein the nitrile rubber has a weight average molecular weight of 50,000 to 100,000, and the weight of methanol extractables in all solids present in the latex composition is 2 to 20 wt % based on the weight of all the solids.

A copolymer latex of a copolymer comprising 50 to 88 wt % of a conjugated diene monomer unit, 10 to 40 wt % of an ethylenically unsaturated nitrile monomer unit, and 2 to 10 wt % of an ethylenically unsaturated acid monomer unit, the copolymer latex having an insoluble content in methyl ethyl ketone of 70 wt % or less and a swelling degree in methyl ethyl ketone of 40 times or more when the copolymer is formed into a dry film.

A copolymer latex of a copolymer comprising 50 to 88 wt % of a conjugated diene monomer unit, 10 to 40 wt % of an ethylenically unsaturated nitrile monomer unit, and 2 to 10 wt % of an ethylenically unsaturated acid monomer unit, the copolymer latex having an insoluble content in methyl ethyl ketone of 70 wt % or less and a swelling degree in methyl ethyl ketone of 40 times or more when the copolymer is formed into a dry film.

The present invention relates to a thermoplastic resin composition, which includes a first copolymer formed by polymerizing a monomer mixture of a (meth)acrylate-based monomer, a vinyl cyan-based monomer and a maleimide-based monomer, and having a refractive index of 1.5170 or less and a glass transition temperature of 115.0 C. or more; and a second copolymer formed by graft-copolymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer, and the thermoplastic resin composition according to the present invention has improved heat resistance, colorability and scratch resistance.

The present invention relates to a thermoplastic resin composition, which includes a first copolymer formed by polymerizing a monomer mixture of a (meth)acrylate-based monomer, a vinyl cyan-based monomer and a maleimide-based monomer, and having a refractive index of 1.5170 or less and a glass transition temperature of 115.0 C. or more; and a second copolymer formed by graft-copolymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer, and the thermoplastic resin composition according to the present invention has improved heat resistance, colorability and scratch resistance.

The present application relates to a binder. The present application can provide a binder which can be applied to production of silicon series negative electrodes to cope well with shrinkage and expansion by repeated charge and discharge, and has excellent binding force between active materials and adhesive force to a current collector, and an active material composition, an electrode and a secondary battery, comprising the same.

A core-shell copolymer includes a core including an emulsifying initiator-derived layer derived from an emulsifying initiator, and a core forming monomer-derived repeating unit, bound to the emulsifying initiator-derived layer; and a shell including a shell forming monomer-derived repeating unit, wherein the emulsifying initiator comprising a surfactant part, an initiator part, and a vinyl monomer-derived repeating unit, the surfactant part including an organic acid-based monomer-derived repeating unit, and the initiator part including a peroxide-based monomer-derived repeating unit, wherein the emulsifying initiator has a weight average molecular weight less than 250,000 g/mol.

A core-shell copolymer includes a core including an emulsifying initiator-derived layer derived from an emulsifying initiator, and a core forming monomer-derived repeating unit, bound to the emulsifying initiator-derived layer; and a shell including a shell forming monomer-derived repeating unit, wherein the emulsifying initiator comprising a surfactant part, an initiator part, and a vinyl monomer-derived repeating unit, the surfactant part including an organic acid-based monomer-derived repeating unit, and the initiator part including a peroxide-based monomer-derived repeating unit, wherein the emulsifying initiator has a weight average molecular weight less than 250,000 g/mol.

A positive-type photosensitive resin composition, an insulating film made from the same, and a display device including such insulating film are provided. The positive photosensitive resin composition is excellent in sensitivity and has excellent chemical resistance, heat resistance, and hygroscopicity by including a polymer containing a hydroxyl group.

A positive-type photosensitive resin composition, an insulating film made from the same, and a display device including such insulating film are provided. The positive photosensitive resin composition is excellent in sensitivity and has excellent chemical resistance, heat resistance, and hygroscopicity by including a polymer containing a hydroxyl group.