Abstract: This present invention concerns a lattice that is intended for the constitution of a light-attenuation screen, composed of at least two layers of crossed threads or fibres, combined to form an open grid with a given openness factor, characterised in that the layers are coated with a formulation that includes a polymer binder and a photochromic organic pigment.
Abstract: A mesh suitable for use as a light attenuating screen is disclosed. The mesh may contain not less than two sheets of glass yarn, joined to form a mesh having a specific openness factor and coated with a polymer coating containing TiO2 particles, so that the glass yarn is separated from TiO2 particles by at least a portion of the polymer binder. A method for making a mesh suitable for use as a light attenuating screen is also disclosed.
Type:
Grant
Filed:
December 23, 2004
Date of Patent:
April 22, 2008
Assignee:
XLScreen
Inventors:
Philippe Christou, Martine Pellet, Alain Crouzet
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