Title:
WOOD MODIFICATION TO ENHANCE FIRE RETARDANCY
Document Type and Number:
WIPO Patent Application WO/2016/022032
Kind Code:
A3
Abstract:
The co-formulation of a wood preservative ('treated') with an inorganic (alkali metal silicates) based flame retardant which undergoes chemical impregnation. Once the 'treated flame retardant" working solution has fully penetrated (sapwood) into the wood, it then undergoes a heat (fixation) process using various heating schedules to achieve chemical fixation. The treated flame retardant Modified Wood [tfrMW] products are then tested for their enhanced fire performance properties. When heated, wood undergoes thermal degradation and combustion producing gases, vapours, tars & chars. Using the 'cone calorimeter' test method, the [tfrMW] products showed a significant reduction in the following parameters: heat release rate (HRR), mass loss rate (MLR) & smoke generated (SEA) values compared to untreated radiata pine.
Inventors:
MOON RONALD PHILIP (NZ)
Application Number:
PCT/NZ2015/050103
Publication Date:
July 09, 2020
Filing Date:
August 07, 2015
Export Citation:
Assignee:
CHEMENZ LTD (NZ)
MOON RONALD PHILIP (NZ)
MOON RONALD PHILIP (NZ)
International Classes:
B27K3/34; B27K5/00; C08H8/00
Domestic Patent References:
| WO2014101979A2 | 2014-07-03 |
Foreign References:
| US5478598A | 1995-12-26 | |||
| US20050042377A1 | 2005-02-24 | |||
| US6235349B1 | 2001-05-22 | |||
| US20130244049A1 | 2013-09-19 | |||
| US20040166246A1 | 2004-08-26 | |||
| US20030104135A1 | 2003-06-05 |
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