Use of a resin for producing a hot-melt-type adhesive

Details Use of a resin for producing a hot-melt-type adhesive Use of a resin for producing a hot-melt-type adhesive

C - Chemistry, Metallurgy

09

J

C09J 193/04 (2006.01) C08G 16/02 (2006.01) C09J 161/00 (2006.01)

Patent

CA 2405116

According to the invention, the reaction product of colophonium and formaldehyde is used as a resin for producing hot-melt-type adhesives in order to improve the reusability of products containing adhesives, especially labelled bottles. The adhesive can be completely separated from the product in an alkaline washing bath. Said adhesive precipitates in a coarsely dispersed form and can easily be removed from the washing bath, e.g. by flotation.

Selon la présente invention, le produit de réaction de colophane et de formaldéhyde est utilisé en tant que résine pour la fabrication d'adhésifs thermofusibles, ce qui permet d'améliorer la réutilisation de produits contenant de l'adhésif, en particulier de bouteilles étiquetées. L'adhésif est complètement séparé du produit dans un bain de lavage alcalin. Il s'accumule sous une forme grossièrement dispersée et peut être facilement éliminé du bain de lavage, par exemple par flottation.

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