美國
US 12,697,755 B2
Process for preparing layered foamed polymeric materials
US 12,697,755 B2 是美國專利商標局（USPTO）的核准專利，日期 2026-08-04。申請人：MATERIAS S.r.l.。PDF 可在本頁下載，未登入每天最多 5 篇。
- 申請人
- MATERIAS S.r.l.
- 發明人
- Ernesto DI MAIO; Luigi NICOLAIS
- 公開日
- 2026-08-04
- 申請日
- 2020-10-14
- 文件種類
- B2 核准公告
- 也寫作
- US 12,697,755 B2 · US12697755 · 12697755
摘要
The present invention concerns layered foamed polymeric materials lacking discontinuities at the interface between the layers and a preparation process thereof comprising the following steps: —providing a foamable polymeric material; —solubilising said one or more foaming agents in the foamable polymeric material under pressure and at a temperature greater than 20° C.; and —releasing the pressure instantaneously; where the solubilisation step is carried out with a pressure profile of said one or more foaming agents that is variable over time.
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專利局網站： 美國專利商標局（USPTO）