C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 133/08 (2006.01) C09J 11/06 (2006.01) C09J 133/20 (2006.01) C09K 3/10 (2006.01)
Patent
CA 2309549
The invention relates to a jointing compound of an acrylate/acrylonitrile copolymer containing 2 to 8 carbon atoms in the alcohol component as binder and fatty compounds as plasticizer and also fillers and auxiliaries. Epoxy-- stearic acid methyl ester in particular may be used as the fatty compound while a butyl acrylate/acrylonitrile copolymer in particular may be used as the acrylate/acrylonitrile copolymer. The combination of the two substances results in jointing compounds characterized by a dramatic improvement in elasticity (resilience). Accordingly, they are particularly suitable for substrates with different coefficients of thermal expansion.
L'invention concerne une pâte d'étanchéité pour joints constituée d'un copolymère acrylate/acrylnitrile, comportant 2 à 8 atomes de C dans le constituant alcool comme liant et des matières grasses comme plastifiant, ainsi que des charges et des adjuvants. On peut utiliser comme matières grasses notamment de l'ester méthylique de l'acide stéarique d'époxy, et comme copolymère acrylate/acrylnitrile notamment un copolymère butylacrylate/acrylnitrile. L'association de ces deux substances permet d'obtenir des pâtes d'étanchéité pour joints présentant une amélioration spectaculaire de l'élasticité (reprise élastique). Elles conviennent donc particulièrement pour des substrats présentant différents coefficients de dilatation thermique.
Duhm Lydia
Helpenstein Klaus
Klauck Wolfgang
Klein Johann
Loth Helmut
Henkel Ag & Co. Kgaa
Henkel Kommanditgesellschaft Auf Atkien
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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