Method of manufacturing multicolor shoe material, semi-finished shoe material, and multicolor shoe material
US12240194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2022 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Oct 13, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a multicolor shoe material includes the following steps. Step S1: blank molds are provided, and a mold chamber of each of the blank molds is injected by one of the foamed materials in different colors to form unfoamed semi-finished products in different colors. Step S2: the semi-finished products are put into a foaming mold, when the foaming mold is preheated and completely closed, a ratio of a total volume of the semi-finished products to a volume of the mold chamber of the foaming mold is ranged between 0.96 and 1.04. Thus, the semi-finished products could be evenly foamed. After foaming, adjacent two of the semi-finished products could be connected by heat fusion to obtain the multicolor shoe material. Additionally, a semi-finished product and a multicolor shoe material are provided in the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.