THERMALLY EXPANDABLE COMPOSITIONS AND USE THEREOF IN WELDING SEALER TAPES

The invention is directed to a thermally expandable composition comprising at least one solid rubber R, at least on tackifying resin TR, at least one blowing agent BA, a vulcanization system VS, and 0.5 - 30 wt.-% of fibrous magnesium oxysulphate or carbon fibers or a mixture thereof. The invention...

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Bibliographische Detailangaben
Hauptverfasser:	URAYAMA SATOSHI, YAMADA SHUNSUKE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COMPOSITIONS BASED THEREON CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GENERAL PROCESSES OF COMPOUNDING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOLDERING OR UNSOLDERING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WELDING WORKING BY LASER BEAM WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention is directed to a thermally expandable composition comprising at least one solid rubber R, at least on tackifying resin TR, at least one blowing agent BA, a vulcanization system VS, and 0.5 - 30 wt.-% of fibrous magnesium oxysulphate or carbon fibers or a mixture thereof. The invention is also directed to a shaped article comprising a substrate layer composed of the thermally expandable composition, to a method for providing sealing, structural adhesion, baffling, or combination thereof to a structure of a manufactured article, and to use of fibrous magnesium oxysulphate or carbon fibers or a mixture thereof in a thermally expandable composition to improve sag resistance and/or flame resistance properties of said composition. 本发明涉及一种可热膨胀的组合物，其包含至少一种固态橡胶R、至少一种增粘树脂TR、至少一种发泡剂BA、硫化体系VS和0.5-30wt％的纤维状的硫酸氧镁或碳纤维或其混合物。本发明还涉及包含由可热膨胀的组合物组成的基材层的成型制品，向生产制品的结构提供密封、结构粘合、阻隔或其组合的方法，以及纤维状的硫酸氧镁或碳纤维或其混合物在可热膨胀的组合物中改善所述组合物的抗流挂性和/或阻燃性的用途。