A polymer latex is described for the preparation of an elastomeric film obtained by free-radical emulsion polymerization of a mixture of ethylenically unsaturated monomers comprising: a) 15 to 99 wt.-% of conjugated dienes; b) 0 to 80 wt.-% of ethylenically unsaturated nitrile compounds; c) 0 to 70 wt.-% of vinyl aromatic monomers; the sum of ethylenically unsaturated nitrile compounds b) and vinyl aromatic monomers c) being 0.95 to 84.95 wt.-% d) 0.05 to 10 wt.-% of ethylenically unsaturated acids wherein the ethylenically unsaturated acids comprise d1) an ethylenically unsaturated acid comprising an acid functional group; and a spacer group separating the ethylenically unsaturated group and the acid functional group by at least 4 atoms; and e) 0 to 65 wt.-% of co-polymerizable ethylenically unsaturated compounds,
wherein monomers a) to e) are as defined.

The present invention relates to a method for preparing a thermoplastic copolymer using monomer droplets, a thermoplastic copolymer prepared therefrom and a thermoplastic resin composition including the same. In the preparation method, monomer droplets including an aromatic vinyl-based monomer are injected after reaching a polymerization conversion ratio of 10% to participate in the reaction after initiating polymerization, and a thermoplastic copolymer having an increased average particle diameter may be prepared in high yield.

The present invention relates to a method for preparing a thermoplastic copolymer using monomer droplets, a thermoplastic copolymer prepared therefrom and a thermoplastic resin composition including the same. In the preparation method, monomer droplets including an aromatic vinyl-based monomer are injected after reaching a polymerization conversion ratio of 10% to participate in the reaction after initiating polymerization, and a thermoplastic copolymer having an increased average particle diameter may be prepared in high yield.

The present invention relates to a process for preparation of superabsorbent polymer with high fluid absorptivity. The present invention also relates to a composition comprising said superabsorbent polymer and their use for absorbing aqueous fluids, for example in the agricultural industry.

The present invention relates to a process for preparation of superabsorbent polymer with high fluid absorptivity. The present invention also relates to a composition comprising said superabsorbent polymer and their use for absorbing aqueous fluids, for example in the agricultural industry.

The present disclosure relates to a matting agent including emulsion polymer particles, a matting polymer composition including a matting agent, and a method of producing emulsion polymer particles. The emulsion polymer particles may be produced by a simple process using an emulsion polymerization method, and have the advantage of being relatively easy to control a degree of crosslinking. In addition, in a case where a matting polymer composition is prepared using a matting agent including the emulsion polymer particles, it is possible to manufacture a molded article having excellent appearance and matting effect without deterioration of the existing mechanical properties such as impact strength and tensile strength of a thermoplastic polymer, and in particular, an excellent matting effect may be exerted even in the extrusion processing, which has been difficult to achieve in the related art.

The present disclosure relates to a matting agent including emulsion polymer particles, a matting polymer composition including a matting agent, and a method of producing emulsion polymer particles. The emulsion polymer particles may be produced by a simple process using an emulsion polymerization method, and have the advantage of being relatively easy to control a degree of crosslinking. In addition, in a case where a matting polymer composition is prepared using a matting agent including the emulsion polymer particles, it is possible to manufacture a molded article having excellent appearance and matting effect without deterioration of the existing mechanical properties such as impact strength and tensile strength of a thermoplastic polymer, and in particular, an excellent matting effect may be exerted even in the extrusion processing, which has been difficult to achieve in the related art.

A thermoplastic resin composition can include 25 to 75% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A) containing alkyl acrylate rubber having an average particle diameter of 50 to 120 nm; and 25 to 75% by weight of a (meth)acrylic acid alkyl ester compound-aromatic vinyl compound-vinyl cyanide compound non-graft copolymer (B). The thermoplastic resin composition has an alkyl acrylate coverage value (X) of 67% or more as calculated by Equation 1. A method of preparing the thermoplastic resin composition, and a molded article including the thermoplastic resin composition are also disclosed.

A thermoplastic resin composition can include 25 to 75% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A) containing alkyl acrylate rubber having an average particle diameter of 50 to 120 nm; and 25 to 75% by weight of a (meth)acrylic acid alkyl ester compound-aromatic vinyl compound-vinyl cyanide compound non-graft copolymer (B). The thermoplastic resin composition has an alkyl acrylate coverage value (X) of 67% or more as calculated by Equation 1. A method of preparing the thermoplastic resin composition, and a molded article including the thermoplastic resin composition are also disclosed.

Provided is a composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that can cause a battery component including the functional layer to display a balance of both high blocking resistance and high process adhesiveness. The composition for a non-aqueous secondary battery functional layer contains a particulate polymer having a core-shell structure including a core portion and a shell portion at least partially covering an outer surface of the core portion. The core portion is formed by a polymer A and the shell portion is formed by a polymer B including not less than 1 mass % and not more than 20 mass % of a cyano group-containing monomer unit.