Dispensable polyimide aerogel prepolymer, method of making the same, method of using the same, and substrate comprising patterned polyimide aerogel
US11753517B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2019 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Dec 11, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L23/4821
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for manufacturing a patterned polyimide aerogel film on a substrate includes: dispensing a polyimide prepolymer sol onto a first portion of a surface of a substrate, a second portion of the surface of the substrate being substantially free of the polyimide prepolymer sol; forming a patterned film of a polyimide prepolymer gel on the substrate from the polyimide prepolymer sol; drying the polyimide prepolymer gel to form a patterned film of a polyimide prepolymer aerogel on the substrate; and curing the polyimide prepolymer aerogel on the substrate to form the patterned polyimide aerogel film on the first portion of the surface of the substrate, the second portion of the surface of the substrate being substantially free of the patterned polyimide aerogel film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.