Use of (per) fluoropolyether compounds as additives in...

Details Use of (per) fluoropolyether compounds as additives in... Use of (per) fluoropolyether compounds as additives in...

B - Operations, Transporting

27

K

B27K 3/34 (2006.01) B27K 3/50 (2006.01) B27K 3/52 (2006.01)

Patent

CA 2339028

Use of mono- and bifunctional (per)fluoropolyether compounds as additives in formulations for the wood treatment, said (p-er)fluoropolyether compounds having the structures: R f-O-CFY-L-W (C) W-L-YFC-O-R f-O-CFY-L-W (D) wherein: L is an organic group selected from -CH2-(OCH2CH2)n-, -CO-NR'-, with R'=H or C1-C4 alkyl group; n=0-8; Y=F, CF3; w is selected from C1-C50 alkyl groups, optionally containing one or more ether O, C6-C50 aryl groups, C7-C50 alkyl-aryl or aryl-alkyl groups; Rf is a (per)fluoropolyether radical.

Utilisation de composés de (per)fluoropolyéther mono- et bifonctionnel comme additifs de formulation pour le traitement du bois. Lesdits composés de (per)fluoropolyéther ont les structures suivantes : R f-O-CFY-L-W (C) W-L-YFC-O-R f-O-CFY-L-W (D) où : L est un groupe organique sélectionné de -CH2-(OCH2CH2)n-, -CO-NR'-, avec R'=H ou groupe d'alkyle C1-C4; n=0-8; Y=F, CF3; w est choisi par les groupes d'alkyle C1-C50, contenant optionnellement un ou plusieurs éthers O, groupes d'aryle C6-C50, groupes d'alkyle-aryle ou groupes d'aryle-alkyle C7-C50; Rf est un radical de (per)fluoropolyéther.

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