Transparent, anti-fog tape or film and related devices and methods
US12209207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2022 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Jan 11, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2483/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure generally relates to a stretchable anti-fogging tape (SAT) that can be applied to diverse transparent materials with varied curvatures for persistent fogging prevention. The SAT comprises three synergistically-combined transparent layers: i) a stretchable middle layer with high elastic recovery to keep transparent materials tightly bound; ii) an anti-fogging top layer to impart hydrophilicity to transparent materials; and iii) an adhesive bottom layer to form robust yet reversible adhesion between transparent materials and SATs. The SAT can be configured to have water condensate form a predominantly continuous film thereon in response to a high humidity environment At least two applications are demonstrated, including the SAT-adhered eyeglasses and goggles for clear fog-free vision, and the SAT-adhered condensation cover for efficient solar-powered freshwater production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.