Polypropylene multilayer sheet
US12194715B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Nov 11, 2021 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Nov 11, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A polypropylene multilayer sheet comprising: a first biaxially oriented polypropylene layer having a melting point Tmh; and a second biaxially oriented polypropylene layer having a melting point Tml, the first biaxially oriented polypropylene layer and the second biaxially oriented polypropylene layer being alternately laminated, the polypropylene multilayer sheet having a thickness of 0.20 to 3.0 mm, wherein Tmh>Tml, and
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.