METHOD FOR PRODUCING MULTI-LAYERED SURFACE STRUCTURES, PARTICLES OR FIBRES

Title:

METHOD FOR PRODUCING MULTI-LAYERED SURFACE STRUCTURES, PARTICLES OR FIBRES

Document Type and Number:

WIPO Patent Application WO2006045534

Kind Code:

A3

Abstract:

The invention relates to a method for producing multi-layered surface structures, particles or fibres. Said method comprises the following steps: the reactive polycarboxylic acid or a derivative thereof is applied to a flat, particle or fibre-shaped support material which already contains the groups which can react with polycarboxylic acid or a derivative thereof, in order to form a covalent connection or is initially provided with said groups; (b) the carrier material treated in step a is, optionally, heated to between 60 °C to 130 °C, preferably to 80 °C to 120 °C due to acceleration, completion or additional optimisation of the covalent connections; (c) cellulose is applied to the carrier material which can form a covalent connection with the polycarboxylic acid or the derivatives thereof. The invention also relates to the use of the inventive method for producing multi-layered surface structures, particles or fibres for hydrophilizing surfaces, in particular for promoting adhesion between hydrophobic and hydrophilic materials and to improve the washability of synthetic fibres. The surfaces which are hydrophilizied by said method form the flat, particle or fibre-shaped carrier material.

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Inventors:

FREUDENBERG UWE (DE)
ZSCHOCHE STEFAN (DE)
WERNER CARSTEN (DE)
SCHMIDT KATI (DE)
BEHRENS SVEN HOLGER (DE)
AUWETER HELMUT (DE)

Application Number:

PCT/EP2005/011302

Publication Date:

August 10, 2006

Filing Date:

October 20, 2005

Export Citation:

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Assignee:

BASF AG (DE)
FREUDENBERG UWE (DE)
ZSCHOCHE STEFAN (DE)
WERNER CARSTEN (DE)
SCHMIDT KATI (DE)
BEHRENS SVEN HOLGER (DE)
AUWETER HELMUT (DE)

International Classes:

C08B15/00

Foreign References:

US6379753B1	2002-04-30
DE1803412A1	1969-08-21

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