초록 ▼

A plastic construction strip in the form of a coil of overlapped convolutions has a composition comprised primarily of polyolefin material. It is between about 20 and 80 mils in thickness and has a width of at least one-half inch. It has high resistance to tearing and a tensile strength in excess of

A plastic construction strip in the form of a coil of overlapped convolutions has a composition comprised primarily of polyolefin material. It is between about 20 and 80 mils in thickness and has a width of at least one-half inch. It has high resistance to tearing and a tensile strength in excess of 1,000 psi, plus sufficient stiffness to support at least a 6-inch length of itself in upright, substantially vertical condition from a holding point and sufficient flexibility to be wound upon itself in overlapping convolutions as small as 1 inch internal diameter. The coil is ideally marketed as part of a dispenser package having a peripheral wall with exit and re-entry openings, and the outermost end of the coiled strip is threaded through the exit and then back into a re-entry opening so as to lie loosely within the container but be easily withdrawn therefrom. Roofing use of this strip involves fastening the strip over edge portions of roofing felt in much the same manner that wood lath has heretofore been used to hold the easily tearable roofing felt against tearing damage caused by wind uplift forces. The new plastic strip is embedded and locked within the roofing structure under the lapped finish roofing layer of shingles.

대표청구항 ▼

An extruded plastic construction strip in the form of a coil of overlapped convolutions, said strip consisting of a blended uniform composition comprised primarily of polyolefin material, said strip being over 100 feet in length and having a substantially uniform thickness between about 20 and 80 mi

An extruded plastic construction strip in the form of a coil of overlapped convolutions, said strip consisting of a blended uniform composition comprised primarily of polyolefin material, said strip being over 100 feet in length and having a substantially uniform thickness between about 20 and 80 mils and a width of at least one-half inch and not over about 12 inches, the structural integrity of said strip being such that it has sufficient resistance to tearing to be substantially untearable under opposing hand forces applied perpendicular to its thickness at an edge starting cut and has sufficient toughness to exhibit a tensile strength in excess of 1,000 psi when tested in accordance with ASTM:D882-91, plus sufficient stiffness to support at least a 6-inch length of itself in upright substantially vertical condition from a holding point and sufficient flexibility to be wound upon itself in overlapping convolutions as small as one inch internal diameter, said coil of overlapped convolutions having adjacent surfaces of the strip in the coil in intimate contact but freely separable during unwinding from said coil, the innermost convolution of said coil having an internal diameter not over about 3 inches and the outermost convolution of said coil having an external diameter in excess of about 10 inches.