Process for manufacturing a tread molding element of a tire-mold comprising a thermosetting polymer
US12269195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2022 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Dec 9, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/757
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The disclosure provides for a process for manufacturing a tread molding element configured to mold at least a portion of a tire tread, the process comprising the following successive steps of providing a first tread molding element that can be a 3D-printed element made of a plastic composition A; forming a reverse mold of the first tread molding element, wherein the reverse mold is made of a plastic composition B comprising one or more elastomers; heating the reverse mold to a temperature above 50° C. when the first tread molding element is a 3D-printed element made of a plastic composition A; and casting a second tread molding element from the reverse mold to obtain a second tread molding element; wherein the second tread molding element is made from a plastic composition C comprising one or more thermosetting resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.