Hot melt adhesive composition

Details Hot melt adhesive composition Hot melt adhesive composition

C - Chemistry, Metallurgy

09

J

C09J 123/00 (2006.01) C09J 109/06 (2006.01) C09J 123/08 (2006.01) C09J 125/00 (2006.01) C09J 125/02 (2006.01) C09J 125/08 (2006.01) C09J 151/06 (2006.01) C09J 153/00 (2006.01) C09J 153/02 (2006.01) C09J 201/00 (2006.01) C08L 23/02 (2006.01) C08L 23/06 (2006.01) C08L 23/08 (2006.01) C08L 53/02 (2006.01)

Patent

CA 2278736

A hot melt adhesive composition comprising 100 parts by weight of a tackifier (B) and 1 to 900 parts by weight of an .alpha.-olefin/aromatic vinyl random copolymer (C); another hot melt adhesive composition comprising 100 parts by weight of a base polymer (A), 1 to 900 parts by weight of the component (B) and 1 to 1000 parts by weight of the component (C); and still another hot melt adhesive composition comprising 100 parts by weight of the component (A), 10 to 300 parts by weight of the component (B) and 10 to 400 parts by weight of the component (C). The component (A) is preferably at least one polymer selected from the group consiting of (a-1) polyolefins, (a-2) polymers having polar groups and (a-3) aromatic vinyl/conjugated diene copolymers. These adhesive compositions are excellent in adhesive strength and usable also as adhesives for styrene resins.

L'invention concerne une composition adhésive thermofusible comprenant 100 parties en poids d'un agent collant (B) et 1 à 900 parties en poids d'un copolymère aléatoire .alpha.-oléfine/vinyle aromatique (C); une autre composition adhésive thermofusible comprenant 100 parties en poids d'un polymère de base (A), 1 à 900 parties en poids du constituant (B) et 1 à 1000 parties en poids du constituant (C); et encore une autre composition adhésive thermofusible comprenant 100 parties en poids du constituant (A), 10 à 300 parties en poids du constituant (B) et 10 à 400 parties en poids du constituant (C). Le constituant (A) est de préférence au moins un polymère choisi dans le groupe composé des (a-1) polyoléfines, (a-2) polymères possédant des groupes polaires et (a-3) copolymères de vinyle aromatique/diène conjugué. Ces compositions adhésives présentent un excellent pouvoir adhésif et s'utilisent également comme colles pour des résines styréniques.

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