Plaster-based material including an agent capable of trapping formaldehyde

摘要

The present invention relates to a plaster-based material which includes an agent capable of trapping formaldehyde, in particular a plasterboard intended for the interior fittings of residential buildings.;The agent capable of trapping formaldehyde is chosen from ethylene urea and its derivatives, compounds comprising active methylene(s), sulphites, tannins and their mixtures.;Another subject-matter of the invention is the use of the said material for reducing the amount of formaldehyde present in the atmosphere inside residential buildings.

主权项

1. A gypsum plasterboard, comprising:
at least one agent selected from the group consisting of compounds comprising active methylene(s), sulphites, tannins and their mixtures, wherein the at least one agent is capable of reacting with formaldehyde, wherein, if the at least one agent comprises a compound comprising active methylene(s), then the compound comprising active methylene(s) is of formula (I): wherein: R1 and R2 are each a hydrogen atom, a C1-C20 alkyl radical, an amino radical, or a radical of formula R4 is a radical R5 is H or —CH3, p is an integer of from 1 to 6, R1 is an amino radical, R2 is an amino radical, or both R1 and R2 are amino radicals, R3 is a hydrogen atom, a C1-C10 alkyl radical, a phenyl radical, or a halogen atom, a is 0 or 1, b is 0 or 1, and n is 1 or 2.