Abstract: Provided is a liquid spray agent for agricultural use, including a polyvinyl alcohol-based resin having a saponification degree of from 30 mol %, to 60 mol %. With this, a liquid spray agent for agricultural use, which is used in agricultural and horticultural fields and has high fixation ability and excellent sprayability, can be provided.

Abstract: An object of the invention is to provide a crosslinking agent with which a crosslinked polymer that suffers little coloring with the lapse of time and shows excellent viscosity stability is obtained. The crosslinking agent of the invention includes a compound which contains two or more alkylhydrazide groups represented by the following general formula (1). (In formula (1), R1 represents an alkyl group having 1-10 carbon atoms, and symbol * is a linking bond.

Abstract: This invention provides an aqueous emulsion, which comprises a polyvinyl alcohol-based resin, as the dispersant, and a polymer comprising a structural unit derived from an ethylenically unsaturated monomer, as the dispersoid, from which a film having excellent transparency can be obtained, and which is excellent in mechanical stability, chemical stability, freezing stability and storage stability, and a method for producing the same, and relates to an aqueous emulsion which has an average particle size of the dispersoid of from 100 to 450 ?m and an apparent grafting efficiency of the polyvinyl alcohol-based resin of from 65 to 75% based on the dispersoid, and a method for producing the same.

Abstract: This invention provides a chaff molding which is excellent in a compressive strength. Said chaff molding comprises a chaff and a polyvinyl alcohol-based resin having a 1,2-diol structure as a side chain.

Abstract: This invention provides an aqueous emulsion, which comprises a polyvinyl alcohol-based resin, as the dispersant, and a polymer comprising a structural unit derived from an ethylenically unsaturated monomer, as the dispersoid, from which a film having excellent transparency can be obtained, and which is excellent in mechanical stability, chemical stability, freezing stability and storage stability, and a method for producing the same, and relates to an aqueous emulsion which has an average particle size of the dispersoid of from 100 to 450 ?m and an apparent grafting efficiency of the polyvinyl alcohol-based resin of from 65 to 75% based on the dispersoid, and a method for producing the same.

Abstract: The present invention relates to a recording medium, particularly a recording medium for ink jet printing, in which the surface strength of the coating surface is strong, ink blurring when printing hardly occurs and water resistance after printing is excellent and a process for preparing the same. That is, the present invention is a recording medium having a coating layer comprising (A) a polyvinyl alcohol resin containing an acetoacetic ester group, (B) a zirconium compound and (C) an inorganic powder on the surface of a substrate. Also, the present invention is a process for preparing a recording medium which comprises a step of preparing a coating solution comprising a polyvinyl alcohol resin containing an acetoacetic ester group (A), a zirconium compound (B) and an inorganic powder (C) and a step of applying the coating solution to the surface of a substrate.

Abstract: Disclosed is a resin composition containing a polyvinyl alcohol resin (A) having an active hydrogen-containing functional group, and an N-amino poly(acrylamide)-based resin (B) having a (meta)acrylic acid structural unit represented by the general formula (1) below and an acrylamide structural unit represented by the general formula (2) below. This resin composition has high crosslinking rate, and enables to obtain a crosslinked product having excellent waterproof. (In the formula, R represents a hydrogen or a methyl group, and X represents a hydrogen or an alkali metal.

Abstract: This invention provides a chaff molding which is excellent in a compressive strength. Said chaff molding comprises a chaff and a polyvinyl alcohol-based resin having a 1,2-diol structure as a side chain.

Abstract: The present invention relates to a recording medium, particularly a recording medium for ink jet printing, in which the surface strength of the coating surface is strong, ink blurring when printing hardly occurs and water resistance after printing is excellent and a process for preparing the same. That is, the present invention is a recording medium having a coating layer comprising (A) a polyvinyl alcohol resin containing an acetoacetic ester group, (B) a zirconium compound and (C) an inorganic powder on the surface of a substrate. Also, the present invention is a process for preparing a recording medium which comprises a step of preparing a coating solution comprising a polyvinyl alcohol resin containing an acetoacetic ester group (A), a zirconium compound (B) and an inorganic powder (C) and a step of applying the coating solution to the surface of a substrate.

Abstract: The present invention relates to a recording medium, particularly a recording medium for ink jet printing, in which the surface strength of the coating surface is strong, ink blurring when printing hardly occurs and water resistance after printing is excellent and a process for preparing the same. That is, the present invention is a recording medium having a coating layer comprising (A) a polyvinyl alcohol resin containing an acetoacetic ester group, (B) a zirconium compound and (C) an inorganic powder on the surface of a substrate. Also, the present invention is a process for preparing a recording medium which comprises a step of preparing a coating solution comprising a polyvinyl alcohol resin containing an acetoacetic ester group (A), a zirconium compound (B) and an inorganic powder (C) and a step of applying the coating solution to the surface of a substrate.