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Title:
MULTI-REPELLENT WOOD VENEER AND PAPER SURFACE COATING
Document Type and Number:
WIPO Patent Application WO/2017/037289
Kind Code:
A3
Abstract:
The invention relates to a method for treatment of cellulose-based material comprising a coupling step and a hydrophobization step. The coupling step comprises the provision of a coupling solution comprising titanium (IV) isopropoxide (TTIP) or a basic solution of zinc oxide and the immersion of the cellulose-based material into the coupling solution. The following hydrophobization step comprises the provision of a hydrophobization solution comprising a hydrophobic compound and the immersion of the cellulose-based material in the hydrophobization solution, yielding a hydrophobic cellulose-based material, followed by drying of the hydrophobic cellulose-based material. According to a second aspect of the invention a cellulose-based material is provided characterized by its omniphobic properties, a cellulose-TTIP hybrid layer and/or Zn O hybrid layer.

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Inventors:
BURGERT INGO (CH)
CABANE ETIENNE (CH)
GUO HUIZHANG (CH)
Application Number:
PCT/EP2016/070852
Publication Date:
April 13, 2017
Filing Date:
September 05, 2016
Export Citation:
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Assignee:
ETH ZÜRICH (CH)
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (CH)
International Classes:
B27K3/20; B05D3/10; B05D5/08; B05D7/06; B27K3/22; B27K3/32; B27K3/34; B32B15/10; B32B21/14; C08J9/36; D06M13/252; D06M13/50; D06M13/513; D06M13/517; D21H21/16
Foreign References:
US3945834A1976-03-23
US2750303A1956-06-12
Other References:
XUE CHAO-HUA ET AL: "Superhydrophobic cotton fabrics prepared by sol-gel coating of TiO2 and surface hydrophobization.", SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, vol. 9, no. 3, 35001, 1 September 2008 (2008-09-01), pages 1 - 5, XP002765156, ISSN: 1468-6996, DOI: 10.1088/1468-6996/9/3/035001
Attorney, Agent or Firm:
BOLSINGER, Dr. Jens (DE)
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