This invention relates to a curable coating composition comprising: I. at least one acetoacetate functional polyester further comprising the residues of a. a hydroxyl component comprising: i. a diol in an amount ranging from 70 to 100 mole %, based on the total moles of (i) and (ii); and ii. a polyol in an amount ranging from 0 to 30 mole %, based on the total moles of (i) and (ii); b. a carboxyl component comprising a polycarboxylic acid compound, a derivative of polycarboxylic acid compound, or a combination thereof; and c. an alkyl acetoacetate, a diketene, or a combination thereof in an amount ranging from about 5 to about 50 weight %, based on the total weight of (a), (b), and (c). II. a curing agent having two or more aldehyde functional groups, and III. a basic catalyst.

The present invention aims to provide a copolymerized polyester and a resin composition which are excellent in storage stability, water-resistant adhesion, processability, weathering resistance and leveling property. According to the present invention, there is provided a copolymerized polyester containing a polyvalent carboxylic acid component and a polyhydric alcohol component as copolymerization components, wherein, when a content of the polyvalent carboxylic acid component is taken as 100% by mole, a content of an alicyclic polyvalent carboxylic acid component is 50% by mole or more, and wherein the copolymerized polyester has an acid value of 170 to 1000 equivalents/10.sup.6 g.

An object is to provide a laminate having excellent lamination strength that includes a polyester film having a furandicarboxylate unit and a heat-sealable resin layer, and to provide a packaging bag including the same. A laminate including a polyester film and a heat-sealable resin layer, wherein the polyester film is a biaxially oriented polyester film containing a polyethylene furandicarboxylate resin composed of a furandicarboxylic acid and ethylene glycol, a plane orientation coefficient ΔP of the film is 0.100 or more and 0.160 or less, a thickness of the film is 1 μm or more and 300 μm or less, a heat shrinkage rate of the film is 10% or less when heated at 150° C. for 30 minutes, and lamination strength of the laminate is 2.0 N/15 mm or more.

An object is to provide a laminate having excellent lamination strength that includes a polyester film having a furandicarboxylate unit and a heat-sealable resin layer, and to provide a packaging bag including the same. A laminate including a polyester film and a heat-sealable resin layer, wherein the polyester film is a biaxially oriented polyester film containing a polyethylene furandicarboxylate resin composed of a furandicarboxylic acid and ethylene glycol, a plane orientation coefficient ΔP of the film is 0.100 or more and 0.160 or less, a thickness of the film is 1 μm or more and 300 μm or less, a heat shrinkage rate of the film is 10% or less when heated at 150° C. for 30 minutes, and lamination strength of the laminate is 2.0 N/15 mm or more.

The present invention aims to provide a copolymerized polyester which is effective as a binder ingredient for aqueous paint, and a copolymerized polyester aqueous dispersion.

A polymer is made from polymerization of CBDA monomers. The resulting polymer is thermally cleavable, making it recyclable when heated and degraded. The resulting intermediate material can be hydrolyzed back to initial starting material for synthesizing CBDA monomers.

This invention relates to aliphatic polyester resins for use in coatings. More particularly this invention relates to aliphatic polyester resins containing 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) that exhibit improved scratch resistance when formulated into 1 K automotive clearcoats. These polyesters can be used as the sole resin in the clearcoat binder or in combination with carbamate-functional acrylic resins and/or hydroxyl-functional acrylic and polyester resins.

This invention relates to aliphatic, carbamate-functional polyester resins for use in coatings. More particularly this invention relates to aliphatic, carbamate-functional polyester resins containing 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) that exhibit improved scratch resistance and acid etch resistance when formulated into 2K automotive clearcoats. These carbamate-functional polyesters can be used as the sole resin in the clearcoat binder or in combination with other carbamate-functional acrylic resins and/or hydroxyl-functional acrylic and polyester resins.

This invention relates to aliphatic, carbamate-functional polyester resins for use in coatings. More particularly this invention relates to aliphatic, carbamate-functional polyester resins containing 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) that exhibit improved scratch resistance and acid etch resistance when formulated into 2K automotive clearcoats. These carbamate-functional polyesters can be used as the sole resin in the clearcoat binder or in combination with other carbamate-functional acrylic resins and/or hydroxyl-functional acrylic and polyester resins.

The present invention provides an aqueous coating composition which is capable of forming a coating film that has excellent cissing resistance and water resistance. An aqueous coating composition which contains (A) at least one hydroxyl group-containing resin that is selected from among (A1) hydroxyl group-containing acrylic resins and (A2) hydroxyl group-containing polyester resins, (B) an oligomer and (C) an alkyl etherified melamine resin, wherein: the oligomer (B) has a number average molecular weight within the range of from 200 to 800 and a solubility parameter within the range of from 10.0 to 13.5; and the molar ratio of methyl groups to butyl groups in the alkyl etherified melamine resin (C), namely (methyl group)/(butyl group) molar ratio is from 50/50 to 0/100.