The present invention refers to a polyesterpolyol which is obtained by reaction of at least one diol with at least one primary hydroxy group and at least one secondary hydroxy group with a saturated aliphatic dicarboxylic acid comprising a carbon chain of at least 12 carbon atoms. The invention further relates to an adhesive composition containing the polyesterpolyol, in particular a polyurethane adhesive composition.

This invention relates to a curable composition comprising: I. a first component comprising a resin having at least one functional group selected from the group consisting of β-ketoester and malonate functional groups, II. a second component comprising at least one curing agent having at least one aldehyde functional group, and III. a third component comprising at least one primary amine or at least one secondary amine, salts thereof, or combinations thereof.

This invention relates to a curable composition comprising: I. a first component comprising a resin having at least one functional group selected from the group consisting of β-ketoester and malonate functional groups, II. a second component comprising at least one curing agent having at least one aldehyde functional group, and III. a third component comprising at least one primary amine or at least one secondary amine, salts thereof, or combinations thereof.

This invention relates to a curable composition comprising: I. Component (I) comprising a resin having at least one functional group selected from the group consisting of β-ketoester and malonate functional groups; II. Component (II) comprising at least one curing agent having at least one aldehyde functional group; III. Component (III) comprising at least one amine, salts thereof, or combinations thereof; and, optionally IV. Component (IV) comprising at least one reactivity delayer; wherein said curing agent is at least one dialdehyde selected from the group consisting of 1,3-cyclohexanedicarboxaldehyde; 1,4 -cyclohexanedicarboxaldehyde; mixtures of 1,3-cyclohexanedicarboxaldehyde and 1,4-cyclohexanedicarboxaldehyde; 2,6-norbornanedicarboxaldehyde; 2,5-norbornanedicarboxaldehyde; cyclododecane-1,4,8-tricarbaldehyde; 3-(4 -formylcyclohexyl)propanal; tricyclodecane dialdehyde; o-phthalaldehyde; terephthalaldehyde; isophthalaldehyde; cyclopentane-1,3-dicarbaldehyde; cyclopenta-3,5-diene-1,3-dicarbaldehyde; glutaraldehyde; benzenedipropanal; any isomers thereof; and any mixtures thereof.

This invention relates to a curable composition comprising: I. Component (I) comprising a resin having at least one functional group selected from the group consisting of β-ketoester and malonate functional groups; II. Component (II) comprising at least one curing agent having at least one aldehyde functional group; III. Component (III) comprising at least one amine, salts thereof, or combinations thereof; and, optionally IV. Component (IV) comprising at least one reactivity delayer; wherein said curing agent is at least one dialdehyde selected from the group consisting of 1,3-cyclohexanedicarboxaldehyde; 1,4 -cyclohexanedicarboxaldehyde; mixtures of 1,3-cyclohexanedicarboxaldehyde and 1,4-cyclohexanedicarboxaldehyde; 2,6-norbornanedicarboxaldehyde; 2,5-norbornanedicarboxaldehyde; cyclododecane-1,4,8-tricarbaldehyde; 3-(4 -formylcyclohexyl)propanal; tricyclodecane dialdehyde; o-phthalaldehyde; terephthalaldehyde; isophthalaldehyde; cyclopentane-1,3-dicarbaldehyde; cyclopenta-3,5-diene-1,3-dicarbaldehyde; glutaraldehyde; benzenedipropanal; any isomers thereof; and any mixtures thereof.

Disclosed is a biaxially oriented polyester film that is excellent in adhesiveness with a metal layer etc. and excellent in deep drawability for an isotropic shape, such as a square shape. A biaxially oriented polyester film having at least a base layer and an adhesive layer each of which contains a polyester as a main component, the film satisfying the following requirements (1) to (3): (1) a difference between reversible heat capacity difference (ΔCp) at around glass transition temperatures of the adhesive layer and the base layer is not smaller than 0.10 and not larger than 0.45; (2) a molecular orientation ratio measured by using a molecular orientation meter is not lower than 1.0 and not higher than 1.2; and (3) a stress at 10% elongation (F10) in each of a machine and transverse direction is not lower than 90 MPa and not higher than 160 MPa.

Disclosed is a biaxially oriented polyester film that is excellent in adhesiveness with a metal layer etc. and excellent in deep drawability for an isotropic shape, such as a square shape. A biaxially oriented polyester film having at least a base layer and an adhesive layer each of which contains a polyester as a main component, the film satisfying the following requirements (1) to (3): (1) a difference between reversible heat capacity difference (ΔCp) at around glass transition temperatures of the adhesive layer and the base layer is not smaller than 0.10 and not larger than 0.45; (2) a molecular orientation ratio measured by using a molecular orientation meter is not lower than 1.0 and not higher than 1.2; and (3) a stress at 10% elongation (F10) in each of a machine and transverse direction is not lower than 90 MPa and not higher than 160 MPa.

Disclosed is a biaxially oriented polyester film that is excellent in adhesiveness with a metal layer etc., and excellent in deep drawability for an isotropic chape, such as a square shape. A biaxially oriented polyester film having at least a base layer and an adhesive layer each of which contains a polyester as a main component, the film satisfying the following requirements (1) to (3): (1) a difference between reversible heat capacity difference (ΔCp) at around glass transition temperatures of the adhesive layer and the base layer is not smaller than 0.10 and not larger than 0.45; (2) a molecular orientation ratio measured by using a molecular orientation meter is higher than 1.2; and (3) a stress at 10% elongation (F10) in each of a machine and transverse direction is not lower than 90 MPa and not higher than 160 MPa.

Disclosed is a biaxially oriented polyester film that is excellent in adhesiveness with a metal layer etc., and excellent in deep drawability for an isotropic chape, such as a square shape. A biaxially oriented polyester film having at least a base layer and an adhesive layer each of which contains a polyester as a main component, the film satisfying the following requirements (1) to (3): (1) a difference between reversible heat capacity difference (ΔCp) at around glass transition temperatures of the adhesive layer and the base layer is not smaller than 0.10 and not larger than 0.45; (2) a molecular orientation ratio measured by using a molecular orientation meter is higher than 1.2; and (3) a stress at 10% elongation (F10) in each of a machine and transverse direction is not lower than 90 MPa and not higher than 160 MPa.

A method of adhering substrate surfaces to one another comprises applying a copolyester resin mixture to the surfaces and contacting the surfaces with one another in the absence of heat to form a cold seal. The copolyester resin may be sulfonated and the reaction product of (a) at least two diols comprising ethylene glycol at a mole fraction of at least about 0.25 and (b) at least three diacids or diesters comprising: (i) a sulfomonomer at a mole fraction of at least 0.02, preferably at least 0.07; (ii) at least one aromatic diacid or diester; and (iii) at least one aliphatic diacid or diester. The ratio of aromatic to aliphatic diacids or diesters may be between about 75/25 and about 45/55, and the glass transition temperature of the resin may be between about −25° C. and about 15° C. The resin may be solvated and preferably is food grade compliant and compostable.