Abstract: It relates to a modified static dissipative material, particularly a clay functionalised with a plurality of inorganic or organic moieties having two or more reactive functional groups and to a process for its preparation. It also relates to a coating composition comprising the modified static dissipative material, to a process for coating a substrate, and to an article of manufacture coated with this composition.

Abstract: The composition comprises: (a) a compound of formula (I), (b) a polymeric matrix comprising a crosslinked polymer, the matrix having a viscosity value comprised from 1×10?3 to 1×1012 Pa·s, (c) a redox pair, and (d) a solvent, the compound of formula (I) and the redox pair being embedded in the polymeric matrix; and wherein: R1 and R2 are selected from: a (C1-C20)alkyl; (C1-C20)alkyl substituted; a 2 to 20-member heteroalkyl; a 2 to 20-member heteroalkyl substituted; (C2-C20)alkenyl; (C2-C20)alkenyl substituted; (C2-C20)alkynyl; (C2-C20)alkynyl substituted; and a known ring system; R3 to R10 are selected from hydrogen; (C1-C20)alkyl; (C1-C20)alkyl substituted; and nitro; and X is a monocharged anion. The present invention also relates to processes for its preparation and to devices comprising it. The multichromic composition shows a short switching time and low transmission in the most visible range, which makes it effective in blocking the whole visible radiation in smart windows.

Abstract: The present invention relates to a temperature-time indicator system which allows monitoring the maintenance of the cold chain in frozen or refrigerated substances based on irreversible color changes, comprising a layer with a solution of ascorbic acid and a layer with a solution of at least one base, wherein the solution of ascorbic acid does not mix with the solution of at least one base unless the temperature reaches a pre-determined threshold. The invention also relates to a method using said system.