Title:
A PROCESS FOR SURFACE MODIFICATION OF MATERIALS
Document Type and Number:
WIPO Patent Application WO/2016/142131
Kind Code:
A8
Abstract:
The present invention relates to surface modification of materials. In particular the invention relates to a process for surface modification of polymeric materials to make the surface non-stick in order to reduce the ability of materials to stick on it and thus provide an easy flow. The process comprises embossing the surface of an object with a pattern comprising micropillars having different shapes (circle, square, rectangular, polygonal prismatic) with an equivalent circular diameter, height and pitch in the range 10-200 microns; applying a layer of adhesive to get a coverage of 0.1 to 5 mg/cm on the embossed surface either by spray coating or dip coating; depositing 0.2 to 1.2 mg/cm of hydrophobic particles wherein the hydrophobic particles have a particle size in the range 0.1 to 10 microns.
Inventors:
DAS SOMNATH (IN)
MURALIDHARAN GIRISH (IN)
PRAMANIK AMITAVA (IN)
MURALIDHARAN GIRISH (IN)
PRAMANIK AMITAVA (IN)
Application Number:
PCT/EP2016/053262
Publication Date:
February 16, 2017
Filing Date:
February 16, 2016
Export Citation:
Assignee:
UNILEVER NV (NL)
UNILEVER PLC (GB)
CONOPCO INC DBA UNILEVER (US)
UNILEVER PLC (GB)
CONOPCO INC DBA UNILEVER (US)
International Classes:
B44B5/02; B05D5/06; C08J7/00; C09D5/00; C11D3/12
Attorney, Agent or Firm:
WARNER, Guy, Jonathan (NL)
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