Provided is a thermosetting resin composition that has high reactivity, can be adapted to various curing conditions, and has extremely high versatility.

The thermosetting resin composition contains a resin component (A) containing —COOR (R is an alkyl group having 50 or less carbon atoms) and a hydroxy group, and a transesterification catalyst (B). A curing start temperature is 130° C. or lower, and a gel fraction when cured under a condition of baking at 150° C. for 30 minutes is 80% or more.

Provided is a thermosetting resin composition that has high reactivity, can be adapted to various curing conditions, and has extremely high versatility.

The thermosetting resin composition contains a resin component (A) containing —COOR (R is an alkyl group having 50 or less carbon atoms) and a hydroxy group, and a transesterification catalyst (B). A curing start temperature is 130° C. or lower, and a gel fraction when cured under a condition of baking at 150° C. for 30 minutes is 80% or more.

An object is to provide, with high productivity, a graphite sheet having good thermal diffusivity and interlaminar strength. The object is attained by a method for producing a graphite sheet having a thermal diffusivity of not less than 10.0 cm.sup.2/s, the method including the step of heat-treating a polyimide film to a temperature of not lower than 2,800° C., the polyimide film containing: not less than 0.01% by weight and not more than 0.08% by weight of inorganic particles; and a non-metal additive containing not less than 0.018% by weight and not more than 0.032% by weight of phosphorus.

An object is to provide, with high productivity, a graphite sheet having good thermal diffusivity and interlaminar strength. The object is attained by a method for producing a graphite sheet having a thermal diffusivity of not less than 10.0 cm.sup.2/s, the method including the step of heat-treating a polyimide film to a temperature of not lower than 2,800° C., the polyimide film containing: not less than 0.01% by weight and not more than 0.08% by weight of inorganic particles; and a non-metal additive containing not less than 0.018% by weight and not more than 0.032% by weight of phosphorus.

An adhesive composition containing (A) a modified polyolefin resin and (B) an epoxy compound, wherein the modified polyolefin resin (A) is a polyolefin resin graft modified with a modifying agent that contains an α,β-unsaturated carboxylic acid or a derivative thereof. The content of the epoxy compound (B) is 1-20 parts by mass relative to 100 parts by mass of the modified polyolefin resin (A); and the epoxy compound is composed of two or more types of epoxy compounds.

An adhesive composition containing (A) a modified polyolefin resin and (B) an epoxy compound, wherein the modified polyolefin resin (A) is a polyolefin resin graft modified with a modifying agent that contains an α,β-unsaturated carboxylic acid or a derivative thereof. The content of the epoxy compound (B) is 1-20 parts by mass relative to 100 parts by mass of the modified polyolefin resin (A); and the epoxy compound is composed of two or more types of epoxy compounds.

A thermally expandable fire-resistant resin composition contains a vinyl resin, a nitrogen-containing foaming agent, a phosphorus flame retardant, a polyhydric alcohol, titanium dioxide, and a straight-chain acrylic polymer. The straight-chain acrylic polymer has a weight-average molecular weight within a range of greater than or equal to 4,000,000 and less than or equal to 20,000,000.

A thermally expandable fire-resistant resin composition contains a vinyl resin, a nitrogen-containing foaming agent, a phosphorus flame retardant, a polyhydric alcohol, titanium dioxide, and a straight-chain acrylic polymer. The straight-chain acrylic polymer has a weight-average molecular weight within a range of greater than or equal to 4,000,000 and less than or equal to 20,000,000.

A film-forming composition for forming a resist underlayer film for a solvent development type resist that is capable of forming a good resist pattern which contains a hydrolysis-condensation product of a hydrolyzable silane compound, at least one substance that is selected from the group consisting of an aminoplast crosslinking agent and a phenoplast crosslinking agent, and a solvent, and wherein the hydrolyzable silane compound contains a hydrolyzable silane represented by formula (1).

A polymerizable composition includes (a) at least one 2-methylene-1,3-dicarbonyl compound and (b) at least one ionic compound including a specific anion.