Thermoplastic pavement marking and method of producing the same
US11535992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2018 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Sep 13, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/744
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of producing a preformed pavement marking prior to application to paving on the ground comprises: providing a first sheet (10a) of thermoplastic pavement marking material; providing a second sheet (10b) of thermoplastic pavement marking material; positioning the first and second sheets (10a, 10b) next to each other; transferring energy to an energization zone (28) along an edge of at least one of said first and second sheets (10a; 10b), to locally liquefy a portion of the thermoplastic material of said at least one of the first and second thermoplastic pavement marking material sheets (10a, 10b) in the energization zone (28); and solidifying the liquefied thermoplastic of the energization zone (28) to form a bond between the first and second sheets (10a, 10b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.