An un-reacted substantially formaldehyde free curable binder solution for binding loose matter consists essentially of a solution obtainable by dissolving a reducing sugar, an ammonium salt acid precursor, optionally a carboxylic acid or a precursor thereof and optionally ammonia in water.

An un-reacted substantially formaldehyde free curable binder solution for binding loose matter consists essentially of a solution obtainable by dissolving a reducing sugar, an ammonium salt acid precursor, optionally a carboxylic acid or a precursor thereof and optionally ammonia in water.

A molded body includes a non-foamed design layer, a foamed intermediate layer, and a non-foamed back layer, laminated in this order and formed of a first, second, and third resin compositions, respectively. The first, second, and third resin compositions contain a polyolefin as a main component. The first resin composition is an impact-resistant resin composition including a polyolefin, a polyamide, and a polyolefin-based modified elastomer having a reactive group reactive with the polyamide. A method of producing the molded body includes disposing a first support layer to serve as the design layer and a third support layer to serve as the back layer so as to be spaced apart from and face each other, interposing the second resin composition provided with foamability in a gap between the first and third support layers, and forming the intermediate layer by expanding the gap while causing the second resin composition to foam.

A molded body includes a non-foamed design layer, a foamed intermediate layer, and a non-foamed back layer, laminated in this order and formed of a first, second, and third resin compositions, respectively. The first, second, and third resin compositions contain a polyolefin as a main component. The first resin composition is an impact-resistant resin composition including a polyolefin, a polyamide, and a polyolefin-based modified elastomer having a reactive group reactive with the polyamide. A method of producing the molded body includes disposing a first support layer to serve as the design layer and a third support layer to serve as the back layer so as to be spaced apart from and face each other, interposing the second resin composition provided with foamability in a gap between the first and third support layers, and forming the intermediate layer by expanding the gap while causing the second resin composition to foam.

A resin composition includes a resin A, a resin C, and a solvent. The resin A includes a sulfonic-acid-group-containing structural unit in an amount exceeding 5 mol % with respect to total structural units included in the resin A. The resin A has a content of a fluorine atom of 30 mass % or less with respect to a total mass of the resin A. The resin C includes a fluorine atom in a larger content per unit mass than the content of a fluorine atom per unit mass in the resin A. A content of the resin A in the resin composition is lower than a content of the resin C in the resin composition in terms of mass.

According to the present invention, there is provided a treatment agent for an additive manufacturing apparatus including a resin having an oxazoline group.

Provided is an agent for dispersing an electrically conductive carbon material, in which the agent consists of a polymer which has an oxazoline group in a side chain and which is obtained by using an oxazoline group-containing monomer such as that represented by formula (1) for example, and in which the agent exhibits excellent dispersion of an electrically conductive carbon material and produces a thin film that exhibits excellent adhesion to a current collection substrate when formed into a thin film together with the electrically conductive carbon material.

##STR00001##

(In the formula, X denotes a polymerizable carbon-carbon double bond-containing group, and R.sup.1-R.sup.4 each independently denote a hydrogen atom, a halogen atom, an alkyl group optionally having a branched structure having 1-5 carbon atoms, an aryl group having 6-20 carbon atoms, or an aralkyl group having 7-20 carbon atoms.)

Provided is an agent for dispersing an electrically conductive carbon material, in which the agent consists of a polymer which has an oxazoline group in a side chain and which is obtained by using an oxazoline group-containing monomer such as that represented by formula (1) for example, and in which the agent exhibits excellent dispersion of an electrically conductive carbon material and produces a thin film that exhibits excellent adhesion to a current collection substrate when formed into a thin film together with the electrically conductive carbon material.

##STR00001##

(In the formula, X denotes a polymerizable carbon-carbon double bond-containing group, and R.sup.1-R.sup.4 each independently denote a hydrogen atom, a halogen atom, an alkyl group optionally having a branched structure having 1-5 carbon atoms, an aryl group having 6-20 carbon atoms, or an aralkyl group having 7-20 carbon atoms.)

Provided is an agent for dispersing an electrically conductive carbon material, in which the agent consists of a polymer which has an oxazoline group in a side chain and which is obtained by using an oxazoline group-containing monomer such as that represented by formula (1) for example, and in which the agent exhibits excellent dispersion of an electrically conductive carbon material and produces a thin film that exhibits excellent adhesion to a current collection substrate when formed into a thin film together with the electrically conductive carbon material.

##STR00001##

(In the formula, X denotes a polymerizable carbon-carbon double bond-containing group, and R.sup.1-R.sup.4 each independently denote a hydrogen atom, a halogen atom, an alkyl group optionally having a branched structure having 1-5 carbon atoms, an aryl group having 6-20 carbon atoms, or an aralkyl group having 7-20 carbon atoms.)

The method for manufacturing a soluble material for three-dimensional modeling that is used as a material of a support material that supports a three-dimensional object when manufacturing the three-dimensional object with a 3D printer of a fused deposition modeling system, comprising a kneading step of kneading raw materials of the soluble material for three-dimensional modeling by a twin screw extruder having a screw configuration in which a ratio of a total length K of kneading discs to a total length L of an effective screw is 0.20<K/L<0.70 and in which a temperature T.sub.mix of the raw materials of the soluble material for three-dimensional modeling in the kneading step and a glass transition temperature T.sub.g of a base polymer contained in the raw materials of the soluble material for three-dimensional modeling satisfy a formula T.sub.g+80( C.)<T.sub.mix<T.sub.g+200( C.).