COVERING MATERIAL FOR ADHESIVE HOT-MELT GLUES

The invention relates to a non-adhesive film-forming polymer composition (covering material) and to adhesive hot-melt glues in the form of pellets, which are covered with said polymer composition and can be produced by coextruding the hot-melt glue and the covering material. The film-forming composi...

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Bibliographische Detailangaben
Hauptverfasser:	PETRY, GERALD, HEEMANN, MARCUS, KOSTYRA, SEBASTIAN, DAVIS, RIJU, PURKNER, ECKHARD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES MAKING GRANULES OR PREFORMS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS AS ADHESIVES WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a non-adhesive film-forming polymer composition (covering material) and to adhesive hot-melt glues in the form of pellets, which are covered with said polymer composition and can be produced by coextruding the hot-melt glue and the covering material. The film-forming composition comprises 5 to 40 wt% of at least one Fischer-Tropsch wax having a melting point of > 95 °C and 30 to 70 wt% of at least one metallocene-catalyzed polyolefin having a softening point of > 95 °C and a melt flow index (MFI) (230 °C, 2.16 kg) of = 1000 and = 300 g/10 minutes. The invention further relates to suitable uses for such hot-melt glues, to methods for using said hot-melt glues, and to products that contain said glues. L'invention concerne une composition filmogène non autocollante (matière d'enveloppe) et des adhésifs thermofusibles autocollants sous forme de granules, lesquels sont enveloppés dans celle-ci et peuvent être fabriqués par co-extrusion d'adhésif thermofusible et de matière d'enveloppe. À cet effet, la composition filmogène comprend entre 5 et 40% en poids d'au moins une cire de Fischer-Tropsch présentant un point de fusion supérieur à 95°C, et entre 30 et 70% en poids d'au moins une polyoléfine catalysée par métallocène présentant un point de ramollissement supérieur à 95°C et un indice de fluidité (MFI) (230°C, 2, 16kg) inférieur ou égal à 1000 et supérieur ou égal à 300 g/10 minutes. L'invention concerne également des utilisations appropriées pour ces adhésifs thermofusibles, un procédé pour leur application et des produits contenant lesdits adhésifs.