National Cheng-kung University

Meng-Heng Wu

Chuh-Yung Chen

Cheng-Wei Huang

Chao-Yu Lai

Yu-Ning Shu

Cheng-Chien Wang

Chen-Chien Wang

The present invention relates to a composition of a hot-melt adhesive film and a method for producing a shoe sole. The composition of the hot-melt adhesive film comprises a hot-melt adhesive material and an electromagnetic radiation absorbing material. The hot-melt adhesive material includes ethylene vinyl acetate and thermoplastic materials. The electromagnetic radiation absorbing material is uniformly dispersed in the hot-melt adhesive material. Energy of an electromagnetic radiation can be absorbed by the electromagnetic radiation absorbing material, thereby producing thermal energy, further increasing temperature and adhering property of the hot-melt adhesive film. Therefore, a midsole and an outsole of the shoe sole can be adhered by the hot-melt adhesive film. Further, the hot-melt adhesive film is made from recyclable materials. Therefore, the hot-melt adhesive film is fully recyclable.

Composition of hot-melt adhesive film and method for producing shoe sole

The present invention relates to a midsole material composition, a method for producing the midsole material and a shoe sole. The midsole material composition comprises an elastomer, a thermoplastic polymer, a suitable crosslinker and a catalyst, such that the midsole material of the present invention can be fabricated by subjecting the midsole material composition to a phase-inversion crosslinking reaction and a foaming process. The aforementioned thermoplastic polymer, which is a recyclable material, is inverted into a continuous phase after the phase-inversion crosslinking reaction, thereby enhancing a recycling property of the midsole material and improving a reusability of the shoe sole.

Midsole material composition, method for producing midsole material and shoe sole

Growing community of inventors

Tainan, Taiwan

Meng-Heng Wu