Patent ID: 10906699

Abstract:
A non-metallic tie, for example a twist-tie or a tin-tie, comprises a polymeric material melt-blending from a composition containing (a) from about 50 to about 80 wt % of at least one matrix-forming thermoplastic polymer which is amorphous or becomes amorphous when melted, and (b) from about 20 to about 50 wt % of at least one elastomeric polymer which has a flexural modulus of less than 700 MPa and a glass transition temperature less than 25° C., based on the combined weight of (a) and (b). The tie is characterized by tensile elongation at break according to ASTM D638-00 of from about 20° to about 100°; and a dead fold angle equal to or less than about 30°, as determined by a method including the steps of (i) providing a sample of the twist tie having two end portions, a thickness of 1-2 mm and a length of about 100 mm; (ii) folding the sample approximately in half in the lengthwise direction so that end portions are approximately adjacent to each other; (iii) relaxing the folded sample at room temperature for three minutes; and (iv) measuring as the dead fold angle the included angle between the article sample end portions.