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Protective sheets, articles, and methods

  • US 10,265,932 B2
  • Filed: 10/23/2006
  • Issued: 04/23/2019
  • Est. Priority Date: 10/21/2005
  • Status: Active Grant
First Claim
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1. A multi-layer protective sheet consisting essentially of:

  • a polyurethane-based carrier layer;

    an essentially uncrosslinked topcoat layer that is not an extrusion-grade polyurethane, wherein crosslinkers and reaction products thereof are not discernible in the topcoat layer when using chemical analysis;

    wherein an outermost adhesive later is present on a side of the carrier layer opposite from that of the topcoat layer;

    andoptionally, a carrier film on an exterior surface of the topcoat layer, wherein the sheet is extensible, has a substantially uniform thickness throughout, and is essentially invisible on a substrate to which it is applied.

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