Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1995-11-09
1997-09-23
Krynski, William
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428141, 428174, 428179, 4284111, 428457, 428458, 428480, 428500, B32B 300
Patent
active
056702400
ABSTRACT:
An embossed substrate comprising a substrate of a plastic material and having a surface and an embossed surface carried by the surface of the substrate. The embossed surface is characterized by having a pattern with an average roughness of between 100 nanometers and 300 nanometers with the roughness being distributed substantially uniformly over the surface, the pattern has ridges and valleys with the horizontal distance between adjacent ridges and/or valleys being greater than the depth between the ridges and the valleys. The peaks and the valleys are randomly disposed without periodicity to cause diffusion of light impinging thereon to minimize or eliminate interface effects when the embossed surface overcoated with thin planar organic layers is exposed to light.
REFERENCES:
patent: 4671913 (1987-06-01), Gen et al.
patent: 5155604 (1992-10-01), Miella et al.
patent: 5164227 (1992-11-01), Miekka et al.
patent: 5425977 (1995-06-01), Hopfe
Flex Products, Inc.
Krynski William
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