FILM-FORMING COMPOSITION CONTAINING AGENT CAPABLE OF TRAPPING FORMALDEHYDE Russian patent published in 2015 - IPC C09D5/02 C09D7/12 

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 R₁ and R₂, identical or different, denote a hydrogen atom, a C₁-C₂₀ alkyl radical, preferably C₁-C₆, an amino radical or a radical of formula wherein R₄ denotes a or radical, where R₅=H or -CH₃ and p is an integer from 1 to 6; R₃ denotes a hydrogen atom, a C₁-C₁₀ alkyl 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 R₆ denotes a cyano radical or a radical, wherein R₈ denotes a hydrogen atom, a C₁-C₂₀ alkyl radical, preferably C₁-C₆, or an amino radical, c equals 0 or 1; R₇ denotes a hydrogen atom, a C₁-C₁₀ alkyl radical, a phenyl radical or a halogen atom; Formula , wherein R₉ denotes a -C≡N or -CO-CH₃ radical, q is an integer from 1 to 4; Formula wherein A denotes a -(CH₂)₃- or -C(CH₃)₂- 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