Fire resistant door system
US9341017B2 · kind B2 · utility
0Cited by
6References
12Claims
0Family size
Inventors
Key dates
| Filing date | Jun 23, 2014 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1366
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A process for making a door structure and particularly a fibrous panel member for a subdoor structure. The process includes mixing a porous fiber material with a MDI adhesive. The fiber construct is compressed between a pair of porous belts. Steam and heat are applied to the compressed construct to form a bound flexible constructing material. The material is then placed within a door structure to form a fire resistant door.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.