Low thickness antifragmentation plates
US6344274B1 · kind B1 · utility
1Cited by
22References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1997 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Aug 25, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Multilayer transparent, antireflex, coloured or opaline plates, with smooth or embossed surfaces, optionally thermouldable with external layers in acrylic polymers, low thickness, in the range of 1.5 up to lower thicknesses of 10 mm, by employing one or more polymeric continuous films which have the property to have elastic modulus lower than the one of PMMA of at least 30%, and/or elongation at break higher than at least 40%, measured by the test according to ISO 527 for plates or films, placed inside the panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.