Hybrid acoustic interlayer consisting of an adhesive core layer made of polymer-matrix nanocomposites
US11911998B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jan 14, 2020 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Oct 6, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2307/732
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An interlayer for laminated glasses, includes two outer layers of a material selected from poly(vinyl butydownral) (PVB) and poly(ethylene-vinyl acetate) (EVA), assembled by an adhesive nanocomposite layer including a first, discontinuous phase consisting of polymeric nanodomains having a glass transition temperature (Tg) of between −50° C. and −30° C., and a second, continuous polymeric phase, referred to as the matrix, having a glass transition temperature (Tg) lower than that of the first phase, the first phase being dispersed in the second phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.