Articles having inorganic substrates and polymer film layers

US12409643B2 · kind B2 · utility

Assignee

• DUPONT ELECTRONICS, INC. · US

Inventors

• Kostantinos Kourtakis · Media, US
• Benjamin Samson · Circleville, US
• Kenneth Hernandez · Monroe, US
• Ross S. Johnson · Hudsonville, US
• Dennis Walls · Alton, US
• Neng Xiao · Irvine, US
• Lei Zhang · Hockessin, US
• Joseph Casey Johnson · Pickerington, US

Key dates

• Filing date: Sep 6, 2022
• Grant date: Sep 9, 2025
• Expiry date: Jun 12, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2571/02
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

In a first aspect, an article includes an inorganic substrate and a polymer film layer. The inorganic substrate includes a material including a ceramic, a glass, a glass-ceramic or a mixture thereof. The material includes a metal cation selected from the group consisting of silicon, aluminum, titanium, zirconium, tantalum, niobium and mixtures thereof and oxygen. The polymer film layer includes a polymer including an imide group. From an interface where the inorganic substrate contacts the polymer film layer, a line-profile of a CNO− signal from negative secondary ion mass spectroscopy decreases as it moves away from the interface and into the bulk of the polymer film layer.