Transparent sheet composites for use as bullet-proof windows
US5506051A · kind A · utility
27Cited by
31References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1994 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Jan 27, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An improved transparent bullet-proof laminate is formed with an energy absorbing transition layer located between preformed laminae of glass and/or plastic, such as polycarbonate, the transition layer constituting a cured aliphatic urethane acrylate with optionally up to 70% of a monofunctional monomeric acrylate, the transition layer in liquid form having a viscosity preferably no greater than 1000 cps and in cured state having a toughness of at least 0.1 MPa, and elastic modulus no greater than 25 MPa and an elongation of at least 20%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.