Provided are an encapsulation structure, a production method thereof, a glue-spreading device, and an encapsulation glue. The encapsulation structure has an encapsulation glue layer, wherein the encapsulation glue layer has an adhesive layer formed from an adhesive glue and a desiccant composition core formed from a colloidal desiccant composition, wherein the adhesive layer fully envelops the desiccant composition core, wherein the colloidal desiccant composition has a colloidal desiccant-dispersing medium and a desiccant dispersed in the colloidal desiccant-dispersing medium.

Provided are an encapsulation structure, a production method thereof, a glue-spreading device, and an encapsulation glue. The encapsulation structure has an encapsulation glue layer, wherein the encapsulation glue layer has an adhesive layer formed from an adhesive glue and a desiccant composition core formed from a colloidal desiccant composition, wherein the adhesive layer fully envelops the desiccant composition core, wherein the colloidal desiccant composition has a colloidal desiccant-dispersing medium and a desiccant dispersed in the colloidal desiccant-dispersing medium.

The aim of the invention is to provide polyester/primer/metallic coating composite films having good adherence of the metallic coating in dry and humid conditions. Said films also form a good gas barrier: oxygen permeability less than or equal to 0.8 cc/m2/d; water vapour permeability less than or equal to 0.3 g/m2/d. To this end, the invention concerns a composite film comprising a polyester substrate, at least one coating adhering on at least one of the faces of the substrate and at least one layer of primer for cross-linked adhesion between the substrate and the coating. Said primer comprises at least one acrylic and/or methacrylic polymer P1, at least one acrylic and/or methacrylic polymer P2 different from P1, at least one cross-linking agent, and, preferably, at least one polyester that is soluble or dispersible in water: —P1 having a gel content TG1>70% by dry weight with respect to P1; —P2 having a gel content TG2≤TG1 and ≤20% by dry weight, with respect to P2; —P1 having a surface-grafted free weak acid content≥0.8 in meq/g of polymer; —[P2]≤60% by weight on dry by weight in respect to P1+P2. The method for producing said film, the adhering primer, and the articles obtained using said film, also form part of the present invention.

The aim of the invention is to provide polyester/primer/metallic coating composite films having good adherence of the metallic coating in dry and humid conditions. Said films also form a good gas barrier: oxygen permeability less than or equal to 0.8 cc/m2/d; water vapour permeability less than or equal to 0.3 g/m2/d. To this end, the invention concerns a composite film comprising a polyester substrate, at least one coating adhering on at least one of the faces of the substrate and at least one layer of primer for cross-linked adhesion between the substrate and the coating. Said primer comprises at least one acrylic and/or methacrylic polymer P1, at least one acrylic and/or methacrylic polymer P2 different from P1, at least one cross-linking agent, and, preferably, at least one polyester that is soluble or dispersible in water: —P1 having a gel content TG1>70% by dry weight with respect to P1; —P2 having a gel content TG2≤TG1 and ≤20% by dry weight, with respect to P2; —P1 having a surface-grafted free weak acid content≥0.8 in meq/g of polymer; —[P2]≤60% by weight on dry by weight in respect to P1+P2. The method for producing said film, the adhering primer, and the articles obtained using said film, also form part of the present invention.

Compositions are provided that include a coating and porous polymeric particles disposed in the coating. Adhesive articles are also provided including a substrate and a composition disposed on a first major surface of the substrate. The composition includes an adhesive and porous polymeric particles disposed in the adhesive. Further, a method of coating a substrate is provided including providing a composition, providing a substrate having a surface, and applying the composition on the surface of the substrate. The compositions and adhesive articles can be applied to wet substrates or dry substrates.

Compositions are provided that include a coating and porous polymeric particles disposed in the coating. Adhesive articles are also provided including a substrate and a composition disposed on a first major surface of the substrate. The composition includes an adhesive and porous polymeric particles disposed in the adhesive. Further, a method of coating a substrate is provided including providing a composition, providing a substrate having a surface, and applying the composition on the surface of the substrate. The compositions and adhesive articles can be applied to wet substrates or dry substrates.

The present invention relates to an adhesive composition containing a base polymer, a water-absorbing material, and a moisture-curable component, wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer.

The present invention relates to an adhesive composition containing a base polymer, a water-absorbing material, and a moisture-curable component, wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer.

The intention is to provide an adhesive system which is stable in storage and which when used permits precise positioning of the adhesive, and which can be crosslinked without exceeding moderate temperatures. The said system is moreover intended to provide strong adhesive bonds that attain high performance levels. This is achieved via a kit containing at least two pressure-sensitive adhesive layers A and B, where the two pressure-sensitive adhesive layers A and B mutually independently respectively comprise at least one polymer containing a multiplicity of carboxy groups; in the pressure-sensitive adhesive layer A a portion of the carboxy groups of the polymer containing these has been activated by reaction with an activator AA; and—the pressure-sensitive adhesive layer A—at least one crosslinking agent V.sub.A which can enter into a crosslinking reaction with the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layers A and B, but which in the pressure-sensitive adhesive layer A is not significantly reactive; —the pressure-sensitive adhesive layer B—at least one crosslinking agent V.sub.B which can accelerate the crosslinking reaction of the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer B with the crosslinking agent V.sub.A and which can permit and accelerate the crosslinking reaction of the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer A with the crosslinking agent V.sub.A and can enter into a crosslinking reaction with the activated carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer A. The invention moreover also relates to an adhesive tape which is obtainable via contact between the pressure-sensitive adhesive layers of the kit, and to a process for producing said adhesive tape.

The intention is to provide an adhesive system which is stable in storage and which when used permits precise positioning of the adhesive, and which can be crosslinked without exceeding moderate temperatures. The said system is moreover intended to provide strong adhesive bonds that attain high performance levels. This is achieved via a kit containing at least two pressure-sensitive adhesive layers A and B, where the two pressure-sensitive adhesive layers A and B mutually independently respectively comprise at least one polymer containing a multiplicity of carboxy groups; in the pressure-sensitive adhesive layer A a portion of the carboxy groups of the polymer containing these has been activated by reaction with an activator AA; and—the pressure-sensitive adhesive layer A—at least one crosslinking agent V.sub.A which can enter into a crosslinking reaction with the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layers A and B, but which in the pressure-sensitive adhesive layer A is not significantly reactive; —the pressure-sensitive adhesive layer B—at least one crosslinking agent V.sub.B which can accelerate the crosslinking reaction of the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer B with the crosslinking agent V.sub.A and which can permit and accelerate the crosslinking reaction of the carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer A with the crosslinking agent V.sub.A and can enter into a crosslinking reaction with the activated carboxy groups of the polymer containing these of the pressure-sensitive adhesive layer A. The invention moreover also relates to an adhesive tape which is obtainable via contact between the pressure-sensitive adhesive layers of the kit, and to a process for producing said adhesive tape.