The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 2022
Filed:
May. 07, 2020
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Duygu Deniz Gunbas, Bergen op Zoom, NL;
Pieter Jan Antoon Janssen, Bergen op Zoom, NL;
Nadia Grossiord, Bergen op Zoom, NL;
Jong Woo Lee, Gyeonggi-do, KR;
SHPP GLOBAL TECHNOLOGIES B.V., Bergen Op Zoom, NL;
Abstract
A multilayer film can comprise: a plurality of layers, preferably 4 layers to 128 layers, comprising: a polymer A layer comprising a polycarbonate copolymer and a polymer B layer comprising a semi-crystalline polyester; wherein a differential solubility parameter (Δδ) of polymer A towards polymer B (Δδ) is greater than or equal to 2.6 MPa; and an interdiffusion region between each polymer A and polymer B. The multilayer film has a dynamic flexure of greater than or equal to 200,000 cycles, as determine by bending 180° on a 10 mm radius cylinder at a rate of 1 hertz. The multilayer film has a total thickness of 40 μm to 70 μm, a transmission at 360 nm to 750 nm of greater than or equal to 89% and a haze of less than or equal to 1%.