Multilayer films having pressure sensitive adhesive layers
First Claim
1. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, wherein at least one internal layer comprises a pressure sensitive adhesive material.
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Accused Products
Abstract
The present invention provides unified multilayer films having at least one internal layer that includes a pressure sensitive adhesive material. Preferably, multilayer films of the present invention are no greater than about 250 micrometers (μm) thick. In particularly preferred embodiments of the present invention, multilayer films include layers that include a pressure sensitive adhesive material alternating with layers that include a material that is not a pressure sensitive adhesive. In other preferred embodiments, multilayer films include alternating layers of different pressure sensitive adhesive materials.
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Citations
32 Claims
- 1. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, wherein at least one internal layer comprises a pressure sensitive adhesive material.
- 6. A multilayer film having a unified construction of at least 10 substantially contiguous layers comprising layers which comprise a pressure sensitive adhesive alternating with layers comprising a nontacky thermoplastic material.
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8. A multilayer film having a unified construction of at least 10 substantially contiguous layers comprising layers which comprise a pressure sensitive adhesive alternating with layers comprising an elastomer that is not a pressure sensitive adhesive.
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13. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, in which layers comprising pressure sensitive adhesive alternate with layers that are not pressure sensitive adhesives, having two outermost layers comprising a pressure sensitive adhesive material.
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15. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, in which layers comprising pressure sensitive adhesive alternate with layers that are not pressure sensitive adhesives, wherein the two outermost layers comprise different materials.
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16. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, in which layers comprising pressure sensitive adhesive alternate with layers that are not pressure sensitive adhesives, having only one outermost layer comprising a pressure sensitive adhesive material.
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17. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, in which layers comprising pressure sensitive adhesive alternate with layers that are not pressure sensitive adhesives having internal layers of no greater than about 5 micrometers thick.
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18. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, in which layers comprising pressure sensitive adhesive alternate with layers that are not pressure sensitive adhesives, having two outermost layers, each being no greater than about 150 micrometers thick.
- 19. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, wherein at least one internal layer comprises a pressure sensitive adhesive, which multilayer film is oriented.
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21. A multilayer film having a unified construction of at least 10 substantially contiguous layers of organic polymeric material, wherein at least one internal layer comprises a pressure sensitive adhesive which is further characterized by having a layer comprising a pressure sensitive adhesive material, a layer comprising a material that is not a pressure sensitive adhesive, and a tie layer therebetween.
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24. A multilayer film having a unified construction and a total thickness of no greater than about 250 micrometers;
- wherein the construction comprises at least 5 substantially contiguous layers of organic polymeric material;
the construction comprising layers comprising a pressure sensitive adhesive material alternating with layers comprising a material that is not a pressure sensitive adhesive. - View Dependent Claims (25, 26, 31)
- wherein the construction comprises at least 5 substantially contiguous layers of organic polymeric material;
- 27. A multilayer film having a unified construction comprising at least 5 substantially contiguous and alternating layers of different pressure sensitive adhesive materials.
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32. A multilayer film having a unified construction of at least 10 substantially contiguous layers comprising layers which comprise crosslinked pressure sensitive adhesive alternating with layers comprising a material that is not a pressure sensitive adhesive.
Specification