The present invention aims to provide a photocurable resin composition capable of constituting a composition having high printability. The present invention relates to a photocurable resin composition containing (A) an allylic polymer produced by polymerization of an allylic compound represented by the following formula (I), and (B) a gelling agent,

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wherein R.sup.1 and R.sup.2 each represent H or CH.sub.3; X represents an a-valent group having an unsubstituted saturated or partially unsaturated four- to eight-membered cyclic structure; and a represents 2 or 3.

The present invention provides a water-soluble film having excellent solubility in cold water, high strength, and excellent hard-water resistance. The present invention also provides a method for simply producing such a water-soluble film. One aspect of the present invention relates to a water-soluble film including a polymer containing an anionic group other than a sulfonic acid (salt) group, and a water-soluble resin. The anionic group-containing polymer excludes an acrylic acid homopolymer. Another aspect of the present invention relates to a method for producing a water-soluble film that includes a polymer containing an anionic group other than a sulfonic acid (salt) group, and a water-soluble resin. The method includes mixing a polymer containing an anionic group other than a sulfonic acid (salt) group and a water-soluble resin.

The present invention provides a water-soluble film having excellent solubility in cold water, high strength, and excellent hard-water resistance. The present invention also provides a method for simply producing such a water-soluble film. One aspect of the present invention relates to a water-soluble film including a polymer containing an anionic group other than a sulfonic acid (salt) group, and a water-soluble resin. The anionic group-containing polymer excludes an acrylic acid homopolymer. Another aspect of the present invention relates to a method for producing a water-soluble film that includes a polymer containing an anionic group other than a sulfonic acid (salt) group, and a water-soluble resin. The method includes mixing a polymer containing an anionic group other than a sulfonic acid (salt) group and a water-soluble resin.

A water soluble polymer composition includes a water soluble polymer and a sugar and may be used as a support in additive manufacturing processes.

A water soluble polymer composition includes a water soluble polymer and a sugar and may be used as a support in additive manufacturing processes.

By first forming an emulsion in a system that separates into two phases which include a solution phase containing an ethylene-vinyl alcohol copolymer (A) as the main component and a solution phase containing a polymer (B) different from the ethylene-vinyl alcohol copolymer (A) as the main component when the copolymer (A), the polymer (B), and an organic solvent (C) having an SP value of 20 (J/cm.sup.3).sup.1/2 to 30 (J/cm.sup.3).sup.1/2 are dissolved and mixed together, and then causing the ethylene-vinyl alcohol copolymer (A) to precipitate as microparticles by bringing a poor solvent (D) of the ethylene-vinyl alcohol copolymer (A) into contact with the emulsion, it is possible to obtain ethylene-vinyl alcohol copolymer microparticles that have a narrow particle size distribution wherein the particle size distribution index in a dry-powder state is 2 or less, have a true spherical particle shape, and exhibit excellent re-dispersibility into liquid.

By first forming an emulsion in a system that separates into two phases which include a solution phase containing an ethylene-vinyl alcohol copolymer (A) as the main component and a solution phase containing a polymer (B) different from the ethylene-vinyl alcohol copolymer (A) as the main component when the copolymer (A), the polymer (B), and an organic solvent (C) having an SP value of 20 (J/cm.sup.3).sup.1/2 to 30 (J/cm.sup.3).sup.1/2 are dissolved and mixed together, and then causing the ethylene-vinyl alcohol copolymer (A) to precipitate as microparticles by bringing a poor solvent (D) of the ethylene-vinyl alcohol copolymer (A) into contact with the emulsion, it is possible to obtain ethylene-vinyl alcohol copolymer microparticles that have a narrow particle size distribution wherein the particle size distribution index in a dry-powder state is 2 or less, have a true spherical particle shape, and exhibit excellent re-dispersibility into liquid.

The present invention provides a resin composition containing: an ethylene-vinyl alcohol copolymer (A) having an ethylene content of 20 mol % or more and 60 mol % or less; a polyamide resin (B); a carboxylic acid metal salt (C); and an unsaturated aldehyde (D), the mass ratio (A/B) of the ethylene-vinyl alcohol copolymer (A) to the polyamide resin (B) being 60/40 or more and 95/5 or less, the content of the carboxylic acid metal salt (C) with respect to a resin content in terms of a metal element equivalent being 1 ppm or more and 500 ppm or less, and the content of the unsaturated aldehyde (D) with respect to the resin content being 0.05 ppm or more and 50 ppm or less.

The present invention provides a resin composition containing: an ethylene-vinyl alcohol copolymer (A) having an ethylene content of 20 mol % or more and 60 mol % or less; a polyamide resin (B); a carboxylic acid metal salt (C); and an unsaturated aldehyde (D), the mass ratio (A/B) of the ethylene-vinyl alcohol copolymer (A) to the polyamide resin (B) being 60/40 or more and 95/5 or less, the content of the carboxylic acid metal salt (C) with respect to a resin content in terms of a metal element equivalent being 1 ppm or more and 500 ppm or less, and the content of the unsaturated aldehyde (D) with respect to the resin content being 0.05 ppm or more and 50 ppm or less.

A medical device, such as a dilatation balloon, including plasticized nylon, and plasticized nylon.