Patent · US Active

Three-layer UV protective film for decorative laminated sheets (HPL)

US11780214B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignee

Roehm GmbH · DE

Inventors

Markus Parusel · Messel, DE
Michael Enders · Innsbruck, AT
Claude Guenanten · Darmstadt, DE
Michael D. Golder · Allendale, US

Key dates

Filing date	May 19, 2015
Grant date	Oct 10, 2023
Priority date	—
Expiry date	Dec 14, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB32B2333/12
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to novel films for application on materials as protective film in respect of weathering effects. In particular, the present invention relates to a novel film composite which has at least three layers and which features particularly good adhesion on the substrate and particularly good optical properties. The outermost layer here is a layer comprising a fluoropolymer, the middle layer is a PMMA layer comprising at least one UV absorber and/or UV stabilizer, and the innermost layer is a PMMA layer comprising at least one adhesion promoter which improves adhesion on the substrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.