Release webs and textured products
AssigneeS.D. Warren Company
InventorRobert J. Murray
Life of this patent
Estimating the term…
Abstract
The present disclosure features processes and equipment for manufacturing materials that have a textured surface formed by applying a first texture to a curable coating, curing the coating, and then embossing a second, different texture over the first texture. The disclosure also features textured materials, including both release webs for use in replicative casting processes and finished products in sheet, board, plate or web form.
Claims28
A release web for use in replicative casting of curable systems, the release web comprising:
- a substrate;
- and
- a coating layer disposed on at least one surface of the substrate, the coating layer including a surface effect to be replicated during casting, wherein the surface effect comprises a first, micro- or nanoscale three-dimensional texture and a second, macro-scale three-dimensional texture;
- wherein the second texture is superimposed over the first texture, and the first texture is coextensive with the second texture.
A method comprising:
- applying a coating to a flexible substrate;
- imparting a first three-dimensional micro- or nanoscale texture;
- curing the coating after imparting the first texture;
- and
- after curing, imparting a second three-dimensional macro-scale texture to the coating to form a release web having a textured surface.
A product comprising:
- a flexible web having a surface that includes a texture having micro- or nanoscale features and macro-scale features, the micro- or nanoscale features and macro-scale features being disposed on the same area of the web and being coextensive with each other, with the micro- or nanoscale features underlying the macro-scale features.
A method of making a product having a textured surface, the method comprising:
- mechanically embossing a macro-scale three-dimensional texture on a web having a surface of a cured polymer provided with a micro- or nanoscale three-dimensional texture.
A method comprising:
- casting a silicone resin on a textured release web having a macro-scale texture and a micro- or nanoscale texture disposed on the same surface of the web, forming a textured silicone replicative web;
- forming a mold comprising the textured silicone replicative web;
- utilizing the mold to create a nickel sleeve;
- and
- utilizing the nickel sleeve as a replicative surface to impart the macro-scale texture and micro- or nanoscale texture to a second release web.
Dependencies are inferred from the claim text.