An elastomeric article having a rubber component comprising polyisoprene and an aldehyde aniline condensate, the elastomeric article having less than 1 ppm diisopropyl xanthogen polysulfide residue.

An elastomeric article having a rubber component comprising polyisoprene and an aldehyde aniline condensate, the elastomeric article having less than 1 ppm diisopropyl xanthogen polysulfide residue.

This application relates to a production method for a medical balloon that can suppress the occurrence of the symptom of delayed-type allergy (Type IV) in addition to immediate-type allergy (Type I). The production method includes molding a composition containing a carboxy-modified conjugated diene polymer, a vulcanizing agent, and a xanthogen compound into the shape of a balloon. The molding of the composition into the shape of a balloon includes dipping a balloon-shaped mold in the composition in the form of latex.

This application relates to a production method for a medical balloon that can suppress the occurrence of the symptom of delayed-type allergy (Type IV) in addition to immediate-type allergy (Type I). The production method includes molding a composition containing a carboxy-modified conjugated diene polymer, a vulcanizing agent, and a xanthogen compound into the shape of a balloon. The molding of the composition into the shape of a balloon includes dipping a balloon-shaped mold in the composition in the form of latex.

This application relates to a production method for a medical balloon that can suppress the occurrence of the symptom of delayed-type allergy (Type IV) in addition to immediate-type allergy (Type I). The production method includes molding a composition containing a carboxy-modified conjugated diene polymer, a vulcanizing agent, and a xanthogen compound into the shape of a balloon. The molding of the composition into the shape of a balloon includes dipping a balloon-shaped mold in the composition in the form of latex.

A molded film having a thickness of 20 to 300 μm and obtained using a latex composition including a conjugated diene polymer latex, a sulfur-based vulcanizing agent, a vulcanization accelerator, and an antioxidant, wherein the antioxidant is at least one selected from phenolic antioxidants and quinoline antioxidants, and has a molecular weight of 300 to 600.

A molded film having a thickness of 20 to 300 μm and obtained using a latex composition including a conjugated diene polymer latex, a sulfur-based vulcanizing agent, a vulcanization accelerator, and an antioxidant, wherein the antioxidant is at least one selected from phenolic antioxidants and quinoline antioxidants, and has a molecular weight of 300 to 600.

An object of the present disclosure is to provide a rubber composition containing an organic sulfur compound from which a molded product having a high hardness can be obtained. The present disclosure provides a rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, (d) a benzothiazole derivative, and (e) an organic sulfur compound, wherein (d) the benzothiazole derivative is a compound represented by the formula (1) and/or a compound represented by the formula (2).

##STR00001## [R.sup.1 represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group having 4 to 14 carbon atoms, or a metal atom, R.sup.2 to R.sup.5 are identical to or different from each other, and represent an electron-withdrawing group or a hydrogen atom, and at least one of R.sup.3 to R.sup.5 is an electron-withdrawing group.]

Object: To provide a method for manufacturing a polymer, which is a method for forming a polymer having a homogeneous copolymer composition and a narrow molecular weight distribution.

Resolution Means: A method for manufacturing a polymer using a microreactor including a flow path capable of mixing a plurality of liquids to perform radical polymerization of a monomer component containing two or more types of monomers in the presence of a polymerization initiator; wherein the microreactor includes a first inlet port configured to feed the monomer component and an additional inlet port located downstream of the first inlet port; and the method includes feeding the monomer component through the first inlet port and the additional inlet port.

Object: To provide a method for manufacturing a polymer, which is a method for forming a polymer having a homogeneous copolymer composition and a narrow molecular weight distribution.

Resolution Means: A method for manufacturing a polymer using a microreactor including a flow path capable of mixing a plurality of liquids to perform radical polymerization of a monomer component containing two or more types of monomers in the presence of a polymerization initiator; wherein the microreactor includes a first inlet port configured to feed the monomer component and an additional inlet port located downstream of the first inlet port; and the method includes feeding the monomer component through the first inlet port and the additional inlet port.