Thermoplastic multilayer interlayer polymer film and related glass laminate composite including same
US8758898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2011 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multilayer interlayer polymer film and a high clarity safety glass laminate made using the same include: (1) a core layer comprising one of an ionomer polymer material and a thermoplastic polyurethane polymer material; (2) at least one intermediate layer laminated to the core layer and comprising the other of the ionomer polymer material and the thermoplastic polyurethane polymer material; and (3) at least one skin layer laminated to the at least one intermediate layer and comprising a non-ionomer polyolefin polymer material. The multilayer interlayer polymer film provides the high clarity safety glass laminate with enhanced performance with respect to optical properties and manufacturability. In an alternative embodiment the at least one skin layer may be omitted when the intermediate layer comprises a thermoplastic polyurethane material with adequate adhesion to glass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.