A nitrile rubber composition comprising a highly saturated nitrile rubber (A) containing α,β-ethylenically unsaturated nitrile monomer units in a ratio of 8 to 60 wt % and having an iodine value of 120 or less and an alkylated phenol compound (B), wherein a ratio of content of the alkylated phenol compound (B) with respect to a total of the highly saturated nitrile rubber (A) and the alkylated phenol compound (B) is 0.01 to 1 wt %, and a difference (η2−η1) between a plasticity number η2 after storage at 70° C. for 7 days in a state of an aqueous dispersion by being dispersed in water and a plasticity number η1 before the storage is 12 or less is provided.

A nitrile rubber composition comprising a highly saturated nitrile rubber (A) containing α,β-ethylenically unsaturated nitrile monomer units in a ratio of 8 to 60 wt % and having an iodine value of 120 or less and an alkylated phenol compound (B), wherein a ratio of content of the alkylated phenol compound (B) with respect to a total of the highly saturated nitrile rubber (A) and the alkylated phenol compound (B) is 0.01 to 1 wt %, and a difference (η2−η1) between a plasticity number η2 after storage at 70° C. for 7 days in a state of an aqueous dispersion by being dispersed in water and a plasticity number η1 before the storage is 12 or less is provided.

The present invention relates to a method for preparing a diene-based rubber latex having improved impact strength, gloss and flexibility, diene-based rubber latex prepared therefrom, and an acrylonitrile-butadiene-styrene graft copolymer having improved impact strength and production yield while having reduced rubber solid content ratio by comprising the same.

The present invention relates to a method for preparing a diene-based rubber latex having improved impact strength, gloss and flexibility, diene-based rubber latex prepared therefrom, and an acrylonitrile-butadiene-styrene graft copolymer having improved impact strength and production yield while having reduced rubber solid content ratio by comprising the same.

Disclosed are a carboxylic acid-modified nitrile copolymer latex for dip molding comprising a combination of a carboxylic acid-modified nitrile copolymer latex and a carboxylic acid-modified styrene copolymer latex, a latex composition for dip molding comprising the same and a molded article prepared therefrom. Molded articles with superior tensile strength are produced by respectively preparing a carboxylic acid-modified nitrile latex having a low glass transition temperature and an average particle diameter of 90 nm or higher, and a carboxylic acid-modified styrene latex having a glass transition temperature of 80° C. or higher and an average particle diameter less than 90 nm and then mixing the two latexes.

Disclosed are a carboxylic acid-modified nitrile copolymer latex for dip molding comprising a combination of a carboxylic acid-modified nitrile copolymer latex and a carboxylic acid-modified styrene copolymer latex, a latex composition for dip molding comprising the same and a molded article prepared therefrom. Molded articles with superior tensile strength are produced by respectively preparing a carboxylic acid-modified nitrile latex having a low glass transition temperature and an average particle diameter of 90 nm or higher, and a carboxylic acid-modified styrene latex having a glass transition temperature of 80° C. or higher and an average particle diameter less than 90 nm and then mixing the two latexes.

Disclosed are a carboxylic acid-modified nitrile copolymer latex for dip molding comprising a combination of a carboxylic acid-modified nitrile copolymer latex and a carboxylic acid-modified styrene copolymer latex, a latex composition for dip molding comprising the same and a molded article prepared therefrom. Molded articles with superior tensile strength are produced by respectively preparing a carboxylic acid-modified nitrile latex having a low glass transition temperature and an average particle diameter of 90 nm or higher, and a carboxylic acid-modified styrene latex having a glass transition temperature of 80° C. or higher and an average particle diameter less than 90 nm and then mixing the two latexes.

A binder composition for a secondary battery electrode contains a polymer that includes a nitrile group-containing monomer unit, an aromatic vinyl monomer unit, and a linear alkylene structural unit and that has a residual mercaptan content, by mass, of not less than 1 ppm and not more than 50 ppm.

A binder composition for a secondary battery electrode contains a polymer that includes a nitrile group-containing monomer unit, an aromatic vinyl monomer unit, and a linear alkylene structural unit and that has a residual mercaptan content, by mass, of not less than 1 ppm and not more than 50 ppm.

Provided is a latex composition for dip forming which includes 100 parts by weight of a nitrile-based hybrid latex including a first latex and a second latex which have different glass transition temperatures, and 2 parts by weight to 8 parts by weight of an ion-conductive polymer having a weight-average molecular weight of 400 to 1,000. The latex composition for dip forming has excellent low-temperature stability and a dip-formed article prepared using the composition has excellent tensile strength and elongation. Since wearing comfort is improved due to a decrease in modulus, the dip-formed article may be suitable for industries requiring such properties.