Spray foam electromagnetic interference absorber
US12284796B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2021 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Nov 7, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0015
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method, a device, and a composition are disclosed. The method includes providing a polyol blend that includes a polyol resin and an electromagnetic (EMA) additive, providing an isocyanate resin selected such that blending the isocyanate resin with the polyol blend results in an EMA spray foam. The device includes a first compartment containing an isocyanate resin and a second compartment containing a polyol blend, which includes a polyol resin and an EMA additive. The composition includes a polyurethane spray foam and an EMA additive blended into the polyurethane spray foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.