ADHESIVE TRANSFER HOSE HAVING BARRIER LAYER AND METHOD OF USE

PROBLEM TO BE SOLVED: To provide an improved hot melt adhesive transfer hose capable of eliminating or at least greatly reducing discoloration and corresponding charring of the molten hot melt adhesive.SOLUTION: A multi-layered hot melt adhesive transfer hose has a barrier layer that prevents or min...

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Bibliographische Detailangaben
Hauptverfasser:	SAIDMAN LAURENCE B, JIM KEOUGH, LESLIE J VARGA, JAY LANIER, WES FORT
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES BLASTING CHEMISTRY DYES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PERFORMING OPERATIONS PIPES POLISHES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING USE OF MATERIALS AS ADHESIVES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an improved hot melt adhesive transfer hose capable of eliminating or at least greatly reducing discoloration and corresponding charring of the molten hot melt adhesive.SOLUTION: A multi-layered hot melt adhesive transfer hose has a barrier layer that prevents or minimizes the ingress of oxygen and other gases into a conduit of the hose. The transfer hose has at least one structural layer overlaying an exterior surface of the barrier layer to help the hose withstand a high fluid pressure. The barrier layer prevents the hot melt adhesive being transported in the hose from discoloring and charring even when the adhesive is heated to about 250°F to at most 450°F (including 450°F) for an extended period of time.SELECTED DRAWING: Figure 2A 【課題】溶融したホットメルト接着剤の変色及びそれに対応する炭化を排除又は大幅に低減させることが可能な、改良されたホットメルト接着剤移送ホースを提供する。【解決手段】ホットメルト接着剤移送用多層ホースは、ホースの導管への酸素及び他のガスの侵入を防止又は最小限に抑えるバリア層を有する。移送ホースは、ホースが高い流体圧力に耐えるのを助けるために、バリア層の外面を覆う少なくとも１つの構造層を有する。バリア層は、接着剤が長時間に亘って華氏約２５０度〜最大華氏４５０度（華氏４５０度を含む）に加熱される場合であっても、ホースにおいて移送されるホットメルト接着剤の変色及び炭化を防止する。【選択図】図２Ａ