Adhesive articles which contain at least one hydrophilic or hydrophobic layer, method for making and uses for same
First Claim
1. An adhesive article comprising:
- a base layer having a first surface and a second surface, wherein the base layer is formed from polycarbonate film, polyacryl film, polymethacryl film, styrenic polymer film, polyolefin film, or a co-polymer film formed from one or more of the polymers used in making the foregoing polymer films; and
a coating layer on the first surface of the base layer, wherein the coating layer comprises;
(A) at least one adhesive resin; and
(B) at least one hydrophilic polymer, at least one surfactant, or a combination of at least one hydrophilic polymer and at least one surfactant;
with the proviso that when (B) is only a surfactant, the coating layer contains less than about 40% by weight polyurethane.
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Abstract
The present invention relates to an adhesive article which can be used as a layer in or a cover for various articles in which a hydrophilic or hydrophobic surface is desired. The adhesive article includes a base layer having a first surface and a second surface and a coating layer formed on the first surface of the base layer, where the coating layer contains at least one adhesive resin and at least one hydrophilic polymer; at least one adhesive resin (which can be a hydrophobic polymer) and at least one surfactant; or at least one adhesive resin, at least one hydrophilic polymer and at least one surfactant. Given the application, the coating layer can be formulated to provide either a hydrophilic or hydrophobic surface. The polymer portion of the coating provides the coating layer with sufficient hydrophilic properties to increase the rate fluid transport across (or in the area near) the coating layer.
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Citations
21 Claims
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1. An adhesive article comprising:
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a base layer having a first surface and a second surface, wherein the base layer is formed from polycarbonate film, polyacryl film, polymethacryl film, styrenic polymer film, polyolefin film, or a co-polymer film formed from one or more of the polymers used in making the foregoing polymer films; and
a coating layer on the first surface of the base layer, wherein the coating layer comprises;
(A) at least one adhesive resin; and
(B) at least one hydrophilic polymer, at least one surfactant, or a combination of at least one hydrophilic polymer and at least one surfactant;
with the proviso that when (B) is only a surfactant, the coating layer contains less than about 40% by weight polyurethane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An adhesive article comprising:
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a base layer having a first surface and a second surface; and
a coating layer formed on the first surface of the base layer, wherein the coating layer comprises;
from about 10% to about 90% by weight of at least one adhesive resin;
from about 10% to about 90% by weight of at least one hydrophilic polymer; and
from about 0.1% to about 10% by weight of at least one surfactant.
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19. A method of making an adhesive article comprising:
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(A) providing a base layer having a first and second surface, wherein the base layer is formed from polycarbonate film, polyacryl film, polymethacryl film, styrenic polymer film, polyolefin film, or a co-polymer film formed from one or more of the polymers used in making the foregoing polymer films; and
(B) forming at least one coating layer on the first surface of the base layer, wherein the coating layer comprises;
(A) at least one adhesive resin; and
(B) at least one hydrophilic polymer, at least one surfactant, or a combination of at least one hydrophilic polymer and at least one surfactant;
with the proviso that when (B) is only a surfactant, the coating layer contains less than about 40% by weight polyurethane.
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20. A method of making a location and/or the surrounding area of the location more hydrophilic, comprising:
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(1) forming an adhesive article comprising a base layer having a first and second surface; and
at least one coating layer on the first surface of the base layer;
the base layer being formed from polycarbonate film, polyacryl film, polymethacryl film, styrenic polymer film, polyolefin film, or a co-polymer film formed from one or more of the polymers used in making the foregoing polymer films;
the coating layer comprising;
(A) at least one adhesive resin; and
(B) at least one hydrophilic polymer, at least one surfactant, or a combination of at least one hydrophilic polymer and at least one surfactant;
with the proviso that when (B) is only a surfactant, the coating layer contains less than about 40% by weight polyurethane; and
(2) placing the adhesive article on the location to increase the hydrophilic properties of the location and/or the surrounding area of the location.
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21. A method of making a substrate having a fluid transport area more hydrophilic, comprising:
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(1) providing a substrate having at least one fluid transport area; and
(2) placing at least one adhesive article over the fluid transport area, the at least one adhesive article comprising a base layer having a first and second surface, and at least one coating layer on the first surface of the base layer;
the base layer being formed from polycarbonate film, polyacryl film, polymethacryl film, styrenic polymer film, polyolefin film, or a co-polymer film formed from one or more of the polymers used in making the foregoing polymer films;
the coating layer comprising;
(A) at least one adhesive resin; and
(B) at least one hydrophilic polymer, at least one surfactant, or a combination of at least one hydrophilic polymer and at least one surfactant;
with the proviso that when (B) is only a surfactant, the coating layer contains less than about 40% by weight polyurethane.
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Specification