Copolymer-based thermofusible adhesives alkyl (meth)acrylate...

Details Copolymer-based thermofusible adhesives alkyl (meth)acrylate... Copolymer-based thermofusible adhesives alkyl (meth)acrylate...

C - Chemistry, Metallurgy

09

J

C09J 133/06 (2006.01) C09J 123/02 (2006.01)

Patent

CA 2208308

The invention concerns thermofusible adhesives characterized as follows: (a) 30 to 90% by weight (A) of at least one essentially amorphous poly-alpha olefin and (B) at least one alkyl (meth)acrylate / ethylene copolymer, the mass ratio (B) / (A) + (B) ranging from 0.05 to 0.55; (b) 10 to 70% by weight of a tackifying resin; (c) 0.1 to 3 parts by weight of an antioxidant for 100 parts by weight of compounds under (a) and (b). It also concerns the use of these adhesives in the wood, binding and packaging industries.

L'invention concerne des colles thermofusibles caractérisées en ce qu'elles comprennent: a) 30 à 90 % en poids (A) d'au moins une polyalphaoléfine essentiellement amorphe et (B) d'au moins un copolymère éthylène/(méth)acrylate d'alkyle, le rapport pondéral (B)/(A)+(B) étant compris entre 0,05 et 0,55; b) 10 à 70 % en poids d'une résine tackifiante; c) 0,1 à 3 parties en poids d'un antioxydant pour 100 parties en poids des composés sous a) et b). Elle concerne également l'utilisation de ces colles dans l'industrie du bois, dela reliure et de l'emballage.

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