Aliphatische Harze auf Petroleumbasis und druckempfindliche Schmelzklebstoffe, die diese enthalten

Aliphatische Harze auf Petroleumbasis und druckempfindliche Schmelzklebstoffe, die diese enthalten

The invention provides a petroleum-based aliphatic resin having a) a Ring and Ball (R&B) softening point in the range of 75 to 110 DEG C, b) a weight average molecular weight (Mw) of 1000 to 2600 Dalton, a z-average molecular weight (Mz) from 1900 to 5000 Dalton and an Mw/Mn below 2.0, c) a leve...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DONKER, CHRETIEN P.L.C, THEELEN, MICHEL HENDRIKUS, LENSELINK, BERT
Format: Patent
Sprache:ger
Schlagworte:
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
ADVERTISING
CHEMISTRY
COMPOSITIONS BASED THEREON
CRYPTOGRAPHY
DISPLAY
DISPLAYING
DYES
EDUCATION
LABELS OR NAME-PLATES
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
PHYSICS
POLISHES
SEALS
SIGNS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:The invention provides a petroleum-based aliphatic resin having a) a Ring and Ball (R&B) softening point in the range of 75 to 110 DEG C, b) a weight average molecular weight (Mw) of 1000 to 2600 Dalton, a z-average molecular weight (Mz) from 1900 to 5000 Dalton and an Mw/Mn below 2.0, c) a level of aromatic protons below 1.5 % with respect to the total protons determined by H-NMR, and d) a mixed methylcyclohexane aniline cloud point (MMAP) of 90 DEG C or less. The resins according to the invention are characterized by a high amount of cyclic structures. Further disclosed is a method of independently controlling the R&B softening point and the molecular weight of an aliphatic resin composition during its preparation by polymerization of a petroleum-based feed, the method being characterized in that the amount of cyclic structures in the resins is increased.