Peel and stick stretch wrap
View Patent ↗A paper or plastic surface material of appropriate thickness and stiffness which can be coated with or laminated to asphaltic or non-asphaltic adhesives. The surface material can have a plurality of individual slits formed in substantially parallel spaced rows extending transversely from one end to the opposing end of the surface material. The flexible surface material is expandable by extending the opposing ends of the surface material whereby the slits form an array of openings. The length, width and spacing of the cuts can be varied to achieve desired stretch ratios. The surface material can be easily stored in the non-expandable position and easily expanded to be stretchable and conformable around windows, skylights or other suitable uses.
1. A non-tear stretch wrap for applying to a border of a circular opening consisting of:
a film having a top surface, a bottom surface, a circular outer border and a circular inner border, the circular inner border forming an opening in a center of the film;
at least three groups of slits being separated by a solid surface, each group of slits having two or more rows of slits being located adjacent to each other, each row of slits including three or more slits, each row extending from the outer border to the inner border, each slit extending from the top surface to the bottom surface;
an adhesive layer attached to the bottom surface of the film; and
a release film adhered to the adhesive layer, the release film protecting the adhesive layer before usage,
wherein, when the stretch wrap is applied to the circular opening, the stretch wrap conforms along the border of the circular opening in such a way that the slits closer to the inner border stretch at different ratios than the slits near the outer border.
2. The stretch wrap of claim 1 wherein the rows are staggered from each other by at least 25% -100%.
3. The stretch wrap of claim 1 wherein the film is a material comprised of a paper, plastic, metal foil, laminate, composite or a combination of such.
4. The stretch wrap of claim 1 wherein the adhesive layer is one of a SEBS compound, SBS compound, APP modified bituminous compound, butyl rubber compound, single component PVAc (polyvinyl acetate) water-resistant adhesive, water-resistant polyvinyl acetate adhesive, EVA (ethylene vinyl acetate)-hot melt adhesives, pressure sensitive hot melt adhesive atactic polypropylene (APP) base pressure sensitive tapes, polyurethane adhesives, thermoplastic adhesive film based with co-polyamides, thermoplastic adhesive film based with mixed polyolefin and co-polyamide, animal base adhesive, asphaltic base adhesive styrol or verstat acrylate types, neoprene rubber cementic base adhesive and combinations thereof.
5. The stretch wrap of claim 1 wherein the adhesive layer is UV-resistant.
6. The stretch wrap of claim 1 wherein the adhesive layer has UV resistance enhancing additives.