Method, article and assembly for applying a multi-layer film to an elongate extruded article
US11597131B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2021 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Nov 27, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2605/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process and related assembly for creating an extrusion molded article with a chemically applied outer film. An extruded base material is formed during a first extrusion operation, following which a multi-layer film is bonded to the base material while the base material still at an above ambient temperature. The multi-layer film further includes successive layers of each of a polypropylene (PP), an adhesive, a polyethylene terephthalate (PET), a coating and s subsequent surface PET. The step of bonding of the film further occurs during an intermediate step between the first extrusion operation for forming the base material according to a given profile section and a subsequent extrusion operation for applying additional material along an edge of the film, the additional material including profile wings as required for a given design.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.