An epoxy resin composition for interlayer insulation, a resin sheet for interlayer insulation, a laminate for a circuit board, a metal-based circuit board, and a power module which realize an excellent adhered-state heat resistance and which allow for the retention of good voltage resistance at a high level are provided. An epoxy resin composition for interlayer insulation according to an embodiment of the present invention contains an epoxy resin, an epoxy-modified polybutadiene compound, and an aromatic amine compound. The epoxy-modified polybutadiene compound contains a repeating unit represented by the general formula (I), a repeating unit represented by the general formula (II), and a repeating unit represented by the general formula (III), and contains at least one of a repeating unit represented by the general formula (i), a repeating unit represented by the general formula (ii), and a repeating unit represented by the general formula (iii):

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The resin-coated metal sheet for containers includes a resin coating layer (A) having a multilayered structure mainly composed of a polyester resin on at least one surface thereof. The resin coating layer (A) includes a resin layer (a1). The resin layer (a1) adheres to the metal sheet, contains (i) a polyester resin, (ii) a phenolic resin, (iii) a metal alkoxide compound and/or a metal chelate compound, (iv) an epoxy resin, and (v) at least one selected from the group consisting of polyamine resins, polyamidoamine resins, and polyamide resins, and is mainly composed of the polyester resin. Preferably, a polyester film (a2) is disposed on the resin layer (a1).

This invention relates to bio-based polyfunctional carboxylic acids reacted with vinyl ether compounds to form liquid vinyl-blocked bio-based polyfunctional carboxylic acids. These liquid vinyl-blocked bio-based polyfunctional carboxylic acids can be mixed with a polyfunctional vegetable oil-based epoxy resin to form a homogeneous curable coating composition. Upon curing at elevated temperature, thermoset coatings are formed which have excellent hardness, solvent resistance, adhesion, and flexibility. The invention also relates to the use of a curable coating composition comprising at least one polyfunctional vegetable oil-based epoxy resin and at least one vinyl-blocked bio-based polyfunctional carboxylic acid, which may be coated onto a substrate and cured thermally. Methods of making the vinyl-blocked bio-based polyfunctional carboxylic acids and curable coating compositions and substrates containing the same are also disclosed.

This invention relates to bio-based polyfunctional carboxylic acids reacted with vinyl ether compounds to form liquid vinyl-blocked bio-based polyfunctional carboxylic acids. These liquid vinyl-blocked bio-based polyfunctional carboxylic acids can be mixed with a polyfunctional vegetable oil-based epoxy resin to form a homogeneous curable coating composition. Upon curing at elevated temperature, thermoset coatings are formed which have excellent hardness, solvent resistance, adhesion, and flexibility. The invention also relates to the use of a curable coating composition comprising at least one polyfunctional vegetable oil-based epoxy resin and at least one vinyl-blocked bio-based polyfunctional carboxylic acid, which may be coated onto a substrate and cured thermally. Methods of making the vinyl-blocked bio-based polyfunctional carboxylic acids and curable coating compositions and substrates containing the same are also disclosed.

Coating compositions are disclosed having a non-bisphenol A based film forming resin and an adhesion promoter resin. The coating compositions provide an alternate to epoxy resins that still allow melamine formaldehyde free cure, blush resistance, capability to retort and can withstand hard-to-hold beverages. In some embodiments, the coating compositions are used to coat substrates such as cans and packaging materials for the storage of food and beverages. Substrates can be coated by preparing an adhesion promoter composition by a method including mixing an epoxidized resin and a solvent to form a mixture, adding a phosphoric acid compound to the resulting mixture to form a phosphate ester, adding water to partially hydrolyze the phosphate ester, and adding a neutralizer to form the adhesion promoter resin, followed by blending the adhesion promoter resin with a non-bisphenol A based film forming resin to form a coating composition, and applying the coating composition to the substrate.

Coating compositions are disclosed having a non-bisphenol A based film forming resin and an adhesion promoter resin. The coating compositions provide an alternate to epoxy resins that still allow melamine formaldehyde free cure, blush resistance, capability to retort and can withstand hard-to-hold beverages. In some embodiments, the coating compositions are used to coat substrates such as cans and packaging materials for the storage of food and beverages. Substrates can be coated by preparing an adhesion promoter composition by a method including mixing an epoxidized resin and a solvent to form a mixture, adding a phosphoric acid compound to the resulting mixture to form a phosphate ester, adding water to partially hydrolyze the phosphate ester, and adding a neutralizer to form the adhesion promoter resin, followed by blending the adhesion promoter resin with a non-bisphenol A based film forming resin to form a coating composition, and applying the coating composition to the substrate.

Concentrated flowable compositions having a total metal weight of at least about 45 wt % are used to form an electrically conductive material. The compositions include metal particulates such as silver flakes, silver particles and/or silver nanowires, and for embodiments of particular interest, a reducible metal composition such as one or more silver salts. The composition includes an organic precursor that forms a polymeric matrix and includes a dissolved polymer binder, a crosslinkable or polymerizable monomer, oligomer or polymer, or a mixture thereof. The flowable precursor composition can be used to form an electrically conductive structure such as a composite of solid polymer matrix and at least about 45 wt % metal. The composite can have a resistivity of no more than about 510.sup.3 Ohm-cm. Methods for forming the flowable precursor composition and the composites are described.

Concentrated flowable compositions having a total metal weight of at least about 45 wt % are used to form an electrically conductive material. The compositions include metal particulates such as silver flakes, silver particles and/or silver nanowires, and for embodiments of particular interest, a reducible metal composition such as one or more silver salts. The composition includes an organic precursor that forms a polymeric matrix and includes a dissolved polymer binder, a crosslinkable or polymerizable monomer, oligomer or polymer, or a mixture thereof. The flowable precursor composition can be used to form an electrically conductive structure such as a composite of solid polymer matrix and at least about 45 wt % metal. The composite can have a resistivity of no more than about 510.sup.3 Ohm-cm. Methods for forming the flowable precursor composition and the composites are described.

This invention relates to bio-based polyfunctional carboxylic acids reacted with vinyl ether compounds to form liquid vinyl-blocked bio-based polyfunctional carboxylic acids. These liquid vinyl-blocked bio-based polyfunctional carboxylic acids can be mixed with a polyfunctional vegetable oil-based epoxy resin to form a homogeneous curable coating composition. Upon curing at elevated temperature, thermoset coatings are formed which have excellent hardness, solvent resistance, adhesion, and flexibility. The invention also relates to the use of a curable coating composition comprising at least one polyfunctional vegetable oil-based epoxy resin and at least one vinyl-blocked bio-based polyfunctional carboxylic acid, which may be coated onto a substrate and cured thermally. Methods of making the vinyl-blocked bio-based polyfunctional carboxylic acids and curable coating compositions and substrates containing the same are also disclosed.

This invention relates to bio-based polyfunctional carboxylic acids reacted with vinyl ether compounds to form liquid vinyl-blocked bio-based polyfunctional carboxylic acids. These liquid vinyl-blocked bio-based polyfunctional carboxylic acids can be mixed with a polyfunctional vegetable oil-based epoxy resin to form a homogeneous curable coating composition. Upon curing at elevated temperature, thermoset coatings are formed which have excellent hardness, solvent resistance, adhesion, and flexibility. The invention also relates to the use of a curable coating composition comprising at least one polyfunctional vegetable oil-based epoxy resin and at least one vinyl-blocked bio-based polyfunctional carboxylic acid, which may be coated onto a substrate and cured thermally. Methods of making the vinyl-blocked bio-based polyfunctional carboxylic acids and curable coating compositions and substrates containing the same are also disclosed.