Pressure-sensitive adhesive composition comprising poly-4-methyl-1-pentene as tackifier

New tackifier for adhesives is made from a polymer obtd. by the cation polymerisation of branched alpha-olefins, of which the number-average mol. wt. (Mn) is 200-40,000 and the glass-transition point is -72 C - 10 deg.C. The branched alpha-olefin is specified to be 4-methyl-1-pentene. The above cati...

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Bibliographische Detailangaben
Hauptverfasser:	MIZUI, KINYA
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	New tackifier for adhesives is made from a polymer obtd. by the cation polymerisation of branched alpha-olefins, of which the number-average mol. wt. (Mn) is 200-40,000 and the glass-transition point is -72 C - 10 deg.C. The branched alpha-olefin is specified to be 4-methyl-1-pentene. The above cation-polymerisation is carried out using as catalyst, alkylaluminium dihalides, aluminium trihalides or alkylhalides, alone or in combination. The cation polymerisation is carried out at a temp. between -80 deg.C and 100 deg.C.