Methods of preparing adhesive-backed articles and methods of applying adhesives backed articles are described. The adhesive-backed articles include a compliant film and a pressure-sensitive adhesive having a microstructured surface opposite the compliant film.
대표청구항▼
1. An adhesive-backed film comprising: a compliant pigmented polymeric film having an upper surface and a lower surface, said compliant film having an inelastic deformation of at least 5 percent after being stretched once to 115 percent of its original length wherein the compliant film is solid; and
1. An adhesive-backed film comprising: a compliant pigmented polymeric film having an upper surface and a lower surface, said compliant film having an inelastic deformation of at least 5 percent after being stretched once to 115 percent of its original length wherein the compliant film is solid; anda pressure sensitive adhesive permanently bonded to the planar lower surface of said compliant polymeric film, said pressure sensitive adhesive having a microstructured surface, opposite said film, that can be bonded to a surface of a motor vehicle, with a pattern of channels being formed in said microstructured surface that define a volume ranging from at least 1×103 μm3 up to about 1×107 μm3 per any 500 μm diameter circular area of said pattern so that, after final application of said article onto the surface of a motor vehicle, the upper surface of said compliant film has an appearance with substantially no periodicity and substantially no surface roughness beyond the periodicity and surface roughness of the film by itself in accordance with the Surface Roughness Test,wherein channels formed on the microstructured surface define exit pathways that provide a fluid egress from behind said article when said article is applied to the surface of a motor vehicle and wherein the adhesive-backed film is suitable for being adhered to a surface of a motor vehicle. 2. The adhesive-backed film according to claim 1, wherein after final application of said adhesive-backed film onto the surface of a motor vehicle, the pattern of said channels is prevented from appearing on the surface of said compliant film. 3. The adhesive-backed film according to claim 1, wherein said compliant film has a thickness of 300 μm or less. 4. The adhesive-backed film according to claim 1, wherein said compliant film has a thickness of about 25 μm to about 100 μm. 5. The adhesive-backed film according to claim 1, wherein said compliant film comprises at least one of the plastic materials from the group consisting of vinyl, polyvinyl chloride, plasticized polyvinyl chloride, polyurethane, polyethylene, polypropylene, or fluororesin. 6. The adhesive-backed film according to claim 1, wherein the average distance between adjacent channels in said pattern is up to 400 μm. 7. The adhesive-backed film according to claim 1, wherein said channels have an aspect ratio in the range of about 0.1 to about 20. 8. The adhesive-backed film according to claim 1, wherein said adhesive-backed article is sealable as indicated by an initial wet out test result of at least 85%. 9. The adhesive-backed film according to claim 1, wherein said channels define exit pathways that provide a fluid egress to a periphery of said adhesive-backed film, when said adhesive-backed film is applied to the surface of a motor vehicle. 10. The adhesive-backed film according to claim 1, wherein said adhesive-backed film is operatively adapted for being adhered to a contoured surface of a motor vehicle. 11. The adhesive-backed film according to claim 1, wherein said pressure sensitive adhesive has a microstructured surface that can be bonded to a contoured surface of a motor vehicle. 12. The adhesive-backed film according to claim 1, wherein the upper surface of said adhesive-backed film has an appearance with substantially no periodicity and substantially no surface roughness beyond the surface roughness of the compliant film by itself in accordance with the Surface Roughness Test, after final application of said adhesive-backed film onto the contoured surface of a motor vehicle. 13. The adhesive-backed film according to claim 1, wherein channels formed on the microstructured surface define exit pathways that provide a fluid egress from behind said adhesive-backed film when said adhesive-backed film is applied to the contoured surface of a motor vehicle. 14. The adhesive-backed film according to claim 1, wherein after final application of said adhesive-backed film onto a contoured surface of a motor vehicle, the pattern of said channels is prevented from appearing on the surface of said compliant film. 15. The adhesive-backed film according to claim 1, wherein said channels define exit pathways that provide a fluid egress to a periphery of said adhesive-backed film, when said adhesive-backed film is applied to the contoured surface of a motor vehicle. 16. The adhesive-backed film of claim 1, wherein the adhesive-backed film has a wet out test result of at least 85%. 17. A method of applying an adhesive-backed film to a surface of a motor vehicle, said method comprising: providing the adhesive-backed film of claim 1;adhering the microstructured surface of the pressure-sensitive adhesive layer to the surface of a motor vehicle,wherein after final application of said adhesive-backed film onto the surface of a motor vehicle, the upper surface of the compliant film has an appearance with substantially no periodicity and substantially no surface roughness beyond the surface roughness of the compliant film by itself in accordance with the Surface Roughness Test. 18. The method according to claim 17, wherein the pressure-sensitive adhesive has an initial wet out test result of at least 85 percent, after said adhering. 19. The method according to claim 17, wherein said adhesive-backed film is adhered to a contoured surface of a motor vehicle. 20. The method according to claim 17, wherein the upper surface of the compliant film has an appearance with substantially no periodicity and substantially no surface roughness beyond the surface roughness of the compliant film by itself in accordance with the Surface Roughness Test, after final application of said adhesive-backed film onto the contoured surface of a motor vehicle.
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이 특허에 인용된 특허 (240)
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