Invention Application
- Patent Title: MULTI-LAYER ISOTROPIC FILMS HAVING TOUGHNESS, HIGH TEMPERATURE PERFORMANCE, AND UV ABSORPTION
-
Application No.: US16630132Application Date: 2018-08-08
-
Publication No.: US20200156355A1Publication Date: 2020-05-21
- Inventor: Stephen A. Johnson , Derek W. Patzman , Richard Yufeng Liu , Victor Ho , Timothy J. Hebrink , Kevin T. Huseby , John F. VanDerlofske, III , John P. Purcell , William T. Fay , James B. Svacha , Richard J. Thompson , Timothy J. Lindquist , Kristopher J. Derks
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- International Application: PCT/US2018/045694 WO 20180808
- Main IPC: B32B27/08
- IPC: B32B27/08 ; B32B7/02

Abstract:
Multi-layer films, and processes to make the films, that enable the delivery of a substrate featuring a peelable thin layer of low haze, amorphous, isotropic film with the desired properties of high modulus, high usage temperature, UV blockage, and toughness The films are made using a co-extrusion, co-orientation and annealing process to enable the delivery of a thin isotropic, UV blocking layer on top of a release layer and support substrate. These film constructions can be kept together during additional processing steps such as coating and converting. The release and dimensionally stable substrate layer can be easily removed once processing steps are completed.
Information query