The present invention relates to an aqueous coating composition containing a polyester resin having an acid value of not less than 30 mgKOH/g and less than 70 mgKOH/g as a base resin, and a curing agent having a functional group capable of crosslinking with a carboxyl group. The aqueous coating composition is excellent in workability and can form a coating having favorable curability and corrosion resistance, and thus can be suitably used for a metal container like a beverage can or a metal lid.

The present invention relates to an aqueous coating composition containing a polyester resin having an acid value of not less than 30 mgKOH/g and less than 70 mgKOH/g as a base resin, and a curing agent having a functional group capable of crosslinking with a carboxyl group. The aqueous coating composition is excellent in workability and can form a coating having favorable curability and corrosion resistance, and thus can be suitably used for a metal container like a beverage can or a metal lid.

Provided are: a resin composition for easily giving polishing pads which have a hardness suitable for chemical mechanical polishing and have voids of a desired size; a polishing pad produced from the resin composition; and a method for producing the polishing pad. The resin composition comprises a urethane (meth)acrylate (A), at least one unsaturated resin (B) selected from among vinyl ester resins and unsaturated polyester resins, an ethylenically unsaturated compound (C) which has an ethylenically unsaturated bond and is neither the urethane (meth)acrylate (A) nor the unsaturated resin (B), and a hollow object (D), wherein the mass ratio of the content of the urethane (meth)acrylate (A) to the content of the unsaturated resin (B), A:B, is 64:36 to 96:4 and the content of the hollow object (D) is 0.7-9.0 parts by mass per 100 parts by mass of the sum of the urethane (meth)acrylate (A), the unsaturated resin (B), and the ethylenically unsaturated compound (C).

Provided are: a resin composition for easily giving polishing pads which have a hardness suitable for chemical mechanical polishing and have voids of a desired size; a polishing pad produced from the resin composition; and a method for producing the polishing pad. The resin composition comprises a urethane (meth)acrylate (A), at least one unsaturated resin (B) selected from among vinyl ester resins and unsaturated polyester resins, an ethylenically unsaturated compound (C) which has an ethylenically unsaturated bond and is neither the urethane (meth)acrylate (A) nor the unsaturated resin (B), and a hollow object (D), wherein the mass ratio of the content of the urethane (meth)acrylate (A) to the content of the unsaturated resin (B), A:B, is 64:36 to 96:4 and the content of the hollow object (D) is 0.7-9.0 parts by mass per 100 parts by mass of the sum of the urethane (meth)acrylate (A), the unsaturated resin (B), and the ethylenically unsaturated compound (C).

The composition includes a polymeric resin having at least one ,-unsaturated ester group, a vinyl aromatic compound having at least one vinyl substituent on an aromatic ring, and an amino- or mercapto-substituted compound represented by formula (HD).sub.1-4-R. Each D is independently S or N(H) and R is a monovalent alkyl, alkenyl, or polyalkyleneoxy or a multivalent alkylene, alkenylene, or polyalkyleneoxy, wherein the alkyl, alkenyl, alkylene, or alkenylene are each interrupted by at least two O, N(H), N(H)C(O), SC(O), or OC(O) groups or a combination thereof. A method of repairing a damaged surface using the composition is also described.

The composition includes a polymeric resin having at least one ,-unsaturated ester group, a vinyl aromatic compound having at least one vinyl substituent on an aromatic ring, and an amino- or mercapto-substituted compound represented by formula (HD).sub.1-4-R. Each D is independently S or N(H) and R is a monovalent alkyl, alkenyl, or polyalkyleneoxy or a multivalent alkylene, alkenylene, or polyalkyleneoxy, wherein the alkyl, alkenyl, alkylene, or alkenylene are each interrupted by at least two O, N(H), N(H)C(O), SC(O), or OC(O) groups or a combination thereof. A method of repairing a damaged surface using the composition is also described.

A method of forming a three-dimensional body from a mixture, wherein the mixture can comprise dispersed solid polymeric particles and a curable binder. In a particular embodiment the solid polymeric particles can be fluoropolymeric particles. The method can include at least partial removal of the cured binder and sintering, to obtain a sintered polymeric three-dimensional body. In one embodiment, the sintered three-dimensional body can be PTFE.

A method of forming a three-dimensional body from a mixture, wherein the mixture can comprise dispersed solid polymeric particles and a curable binder. In a particular embodiment the solid polymeric particles can be fluoropolymeric particles. The method can include at least partial removal of the cured binder and sintering, to obtain a sintered polymeric three-dimensional body. In one embodiment, the sintered three-dimensional body can be PTFE.

An eco-friendly polyester molding composition and a method for manufacturing a plastic board are provided. The eco-friendly polyester molding composition includes 50 to 100 PHR of unsaturated polyester resin, 50 to 250 PHR of a filler, 50 to 200 PHR of glass fiber and 0.5 to 10 PHR of at least two initiators. The at least two initiators include a high temperature initiator and a low-to-medium temperature initiator which are mixed in a mass ratio of 0.5-4:1.

An eco-friendly polyester molding composition and a method for manufacturing a plastic board are provided. The eco-friendly polyester molding composition includes 50 to 100 PHR of unsaturated polyester resin, 50 to 250 PHR of a filler, 50 to 200 PHR of glass fiber and 0.5 to 10 PHR of at least two initiators. The at least two initiators include a high temperature initiator and a low-to-medium temperature initiator which are mixed in a mass ratio of 0.5-4:1.