Method for manufacturing a floor or wall panel
US11959286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2020 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Jul 17, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B5/32
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making a floor or wall panel has a foamed polymer core. A foamable polymer powder is foamed between two conveyor belts in the forming zone of a steel belt press. The sum of the thicknesses of the two conveyor belts and the total thickness of the layers at the entrance of the steel belt press is less than or equal to the opening of the steel belt press at the entrance of the steel belt press. The sum of the thicknesses of the two conveyor belts and the total thickness of the substrate at the outlet of the steel belt press is equal to the opening of the steel belt press at the outlet of the steel belt press and greater than the sum of the thicknesses of the two conveyor belts and the total thickness of the layers at the entrance of the steel belt press.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.