Lamination film and adhesive therefor
AssigneesDow Global Technologies LLC, Dow Quimica de Colombia S.A., Rohm and Haas Company
InventorsFelipe Martinez Barreneche, Elkin David Cardona Jimenez, Juan Carlos Casarrubias, Jie Wu
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Abstract
A film structure including: (a) at least one functionalized film layer, wherein the at least one film layer comprises a polar-reactive group polyolefin layer used as an internal layer in the film structure; and (b) a lamination adhesive composition present on, and in contact with, a least a portion of a surface of the internal layer; wherein the green tack value of the adhesive composition is greater than 0.772 Newtons/centimeter; a laminate including the above film structure bonded to a substrate layer; a process for producing the film structure; a process for producing the laminate; and a laminated article made from the above laminate.
Claims14
A film structure comprising:
- (a) at least one functionalized film layer, wherein the at least one functionalized film layer comprises a polar-reactive group polyolefin layer used as an internal lamination layer in the film structure;
- and
- (b) a lamination adhesive composition present on, and in contact with, a least a portion of a surface of the internal lamination layer;
- wherein the green tack value of the adhesive composition is greater than 0.772 Newtons/centimeter.
A process for producing a film structure comprising the steps of:
- (i) providing (a) at least one film layer, wherein the at least one film layer is a polar-reactive group polyolefin layer used as an internal layer in the film structure;
- (ii) providing (b) a lamination adhesive composition having a green tack value;
- and
- (iii) applying the lamination adhesive composition to a least a portion of a surface of the internal layer to form a combination film structure of the internal layer and the lamination adhesive composition.
A laminate comprising:
- (a) at least one functionalized film layer, wherein the at least one film layer is a polar-reactive group polyolefin layer used as an internal layer in the laminate;
- (b) a lamination adhesive composition present on, and in contact with, a least a portion of a surface of the internal layer;
- wherein the green tack value of the lamination adhesive composition is greater than 0.772 Newtons/centimeter;
- and
- (c) at least one polar or non-polar substrate;
- wherein at least a portion of a surface of the substrate is in contact with the adhesive composition;
- wherein a laminate is formed comprising the at least one functionalized film layer bonded to the at least one polar or non-polar substrate by the lamination adhesive composition disposed in between the at least one functionalized film layer and the at least one polar or non-polar substrate.
A process for producing a laminate including at least a first layer and at least a second layer comprising the steps of:
- (I) providing at least one functionalized film layer forming the at least first film layer, wherein the at least one functionalized film layer is a polar-reactive group polyolefin layer used as an internal layer in the laminate;
- (II) providing at least one polar or non-polar film substrate forming the at least second film layer;
- (III) providing a lamination adhesive composition having a green tack value of greater than 0.772 Newtons/centimeter;
- (IV) applying the lamination adhesive composition to at least a portion of a surface of the at least first film layer to form a combination of an internal film layer and lamination adhesive composition;
- and
- (V) contacting the at least one polar or non-polar film substrate with the adhesive composition present on the at least a portion of the surface of the internal film layer such that the adhesive composition is disposed between the first and second film layers;
- and wherein at least a portion of a surface of the film substrate is in contact with the adhesive composition to effectuate a bond between the internal film layer and the film substrate to form a laminate.
Dependencies are inferred from the claim text.