On-line synchronous registering co-extrusion SPC floor and production process therefor
US11975526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2019 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Sep 26, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2471/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
On-line synchronous registering co-extrusion SPC floor includes a base material layer, a decorative layer, and a wear-resistant layer. The decorative layer is arranged on the base material layer and provides patterns and designs. The wear-resistant layer is arranged on the decorative layer, is a transparent layer or a semi-transparent layer, and is provided with a concave-convex surface. The patterns or designs correspond to the concave-convex surface; the base material layer is composed of an elastic layer, a strength layer, and a stable layer, and shading is pressed on the bottom layer of the stable layer. Two co-extrusion lines are used for simultaneous extrusion to achieve an ABA three-layer effect of an SPC base material layer. A calender matches a synchronous registering system, and the patterns of the decorative layer are formed in a rolling manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.