Polymeric sheets, methods for making and using the same, and articles comprising polymeric sheets
US10196494B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Feb 21, 2014 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Jan 17, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2455/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In one embodiment, a polymeric sheet, comprising: a foamed layer comprising a polymeric material, wherein the polymeric material has a Tg of greater than or equal to 100° C.; and wherein the sheet has a weight reduction of 10% to 60%, as compared to a solid sheet of the same geometry and size formed from the same polymeric material. The sheet, at the thickness of 1.0 mm, has a smoke density of less than or equal to 200 particles after four minutes of burning according to ASTM E662-06. The sheet is thermoformable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.