Invention Grant
- Patent Title: Methods of conferring fire retardancy to wood and fire-retardant wood products
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Application No.: US14328075Application Date: 2014-07-10
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Publication No.: US09669564B2Publication Date: 2017-06-06
- Inventor: Jun Zhang , John Horton , Xinhao Howard Gao
- Applicant: Koppers Performance Chemicals Inc.
- Applicant Address: US PA Pittsburgh
- Assignee: Koppers Performance Chemicals Inc.
- Current Assignee: Koppers Performance Chemicals Inc.
- Current Assignee Address: US PA Pittsburgh
- Agency: Covington & Burling LLP
- Main IPC: B27K3/16
- IPC: B27K3/16 ; B05D1/02 ; B05D1/18 ; B05D1/28 ; B05D7/06 ; B27K3/36 ; B27K3/02 ; B27K3/08 ; B27K5/00 ; C09K21/04 ; B05D7/08 ; C09K21/02 ; C09K21/10
Abstract:
A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of applying an aqueous fire-retardant impregnate and applying a coating to the surface of the wood product. In one embodiment, said process confers fire-retardant properties to the wood products sufficient to pass the extended burn test of ASTM E-84. The present invention also provides fire retardant wood products.
Public/Granted literature
- US20150352744A1 METHODS OF CONFERRING FIRE RETARDANCY TO WOOD AND FIRE-RETARDANT WOOD PRODUCTS Public/Granted day:2015-12-10
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