| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to a film-forming composition intended for application on the outer surface of a building, which contains an agent capable of trapping formaldehyde. The film-forming composition contains a dispersion phase, binder, pigments, filler, additives and an agent capable of trapping formaldehyde, selected from compounds with an active methylene group/groups of one of the following formulae (I)-(IV): Formula, wherein Rand R, identical or different, denote a hydrogen atom, a C-Calkyl radical, preferably C-C, an amino radical or a radical of formulawherein Rdenotes aorradical, where R=H or -CHand p is an integer from 1 to 6; Rdenotes a hydrogen atom, a C-Calkyl radical, a phenyl radical or a halogen atom, a equals 0 or 1, b equals 0 or 1, n equals 1 or 2; Formula, wherein Rdenotes a cyano radical or aradical, wherein Rdenotes a hydrogen atom, a C-Calkyl radical, preferably C-C, or an amino radical, c equals 0 or 1; Rdenotes a hydrogen atom, a C-Calkyl radical, a phenyl radical or a halogen atom; Formula, wherein Rdenotes a -C?N or -CO-CHradical, q is an integer from 1 to 4; Formulawherein A denotes a -(CH)- or -C(CH)- radical, r equals 0 or 1. The invention also relates to the use of said film-forming composition to reduce the amount of formaldehyde in air inside a building.EFFECT: reducing the amount of formaldehyde inside buildings.10 cl, 2 tbl |
