Method for producing a planar polymer stack
US11454880B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2018 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Jul 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/2059
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a method for manufacturing a flat polymeric stack, said stack comprising one or more first and one second layer of (co)polymer (20, 30) stacked one on the other, the first underlying (co)polymer layer (20) not having undergone any prior treatment allowing its crosslinking, at least one of the (co)polymer layers initially being in a liquid or viscous state, said method being characterized in that the upper layer (30), known as the top coat (TC), is deposited on the first layer (20) in the form of a prepolymer composition (pre-TC), comprising one or more monomer(s) and/or dimer(s) and/or oligomer(s) and/or polymer(s) in solution, and in that it is then subjected to a heat treatment capable of causing a crosslinking reaction of the molecular chains within said layer (30, TC).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.