US 12,209,207 B2 · Transparent, anti-fog tape or film and related devices and methods

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.

Claims20

Dependent claims

An anti-fog tape configured to be applied to a transparent object, comprising:

a first, hydrophilic layer that is configured to have water condensate form a predominantly continuous film thereon in response to a high humidity environment;
a second, stretchable layer having an elastic recovery of at least about 0.50, the second, stretchable layer being covalently crosslinked with the first, hydrophilic layer;
and
a third, adhesive layer,
wherein a diffuse transmittance of the anti-fog tape is approximately 5% or less in high-humidity environments.

2 more elements

Dependencies are inferred from the claim text.

Transparent, anti-fog tape or film and related devices and methods

Life of this patent

Transparent, anti-fog tape or film and related devices and methods

Life of this patent

Abstract

Claims20