Back to results
US 9,174,237 B2Granted
Pressure sensitive adhesive article
Assignee3M Innovative Properties Company
InventorAudrey A. Sherman
Life of this patent
Estimating the term…
Abstract
Disclosed herein is an article including a substrate, a first layer adjacent the substrate, the first layer having a silicone-containing pressure sensitive adhesive and a thickness of less than about 5 um, and a second layer adjacent the first layer and opposite the substrate, the second layer having a pressure sensitive adhesive. The silicone-containing pressure sensitive adhesive can include a copolymer of a vinyl polymeric backbone having polysiloxane moieties grafted thereto.
Claims11
A multilayer coating method comprising:
- providing a first coating fluid;
- providing a second coating fluid, the second coating fluid having a surface tension that is greater than that of the first;
- moving a substrate along a path through a coating station;
- flowing the second coating fluid at a rate sufficient to form a continuous flowing layer towards the substrate;
- flowing the first coating fluid onto the continuous flowing layer thereby forming a composite flowing layer;
- subsequently contacting the substrate with the composite flowing layer such that the first coating fluid is interposed between the continuous flowing layer and the substrate;
- and
- forming the composite flowing layer into a film after the composite flowing layer contacts the substrate, the film comprising a first coating layer formed from the first coating fluid and a second coating layer formed from the second coating fluid, wherein the first coating layer comprises a continuous or a discontinuous layer.
5 more elements
Dependencies are inferred from the claim text.