DRAWN TAPE

PURPOSE:A low-shrinkage drawn tape, prepared by melt extruding a specific composition containing propylene homopolymer and an ethylene-propylene block copolymer, and drawing the resultant extruded film, and having improved separating property and reduced bleeding in molding the tape, etc. CONSTITUTI...

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Bibliographische Detailangaben
Hauptverfasser:	KAMEI RIYOUSUKE, KOBAYASHI HIROITSU, NAKAMURA AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS NATURAL OR ARTIFICIAL THREADS OR FIBRES PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SPINNING TEXTILES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:A low-shrinkage drawn tape, prepared by melt extruding a specific composition containing propylene homopolymer and an ethylene-propylene block copolymer, and drawing the resultant extruded film, and having improved separating property and reduced bleeding in molding the tape, etc. CONSTITUTION:A drawn tape prepared by incorporating propylene homopolymer with an ethylene-propylene block copolymer to give a composition having >=2g/ 10min melt flow rate, 0.6-4.5wt% content of ethylene and 1.1-1.8 absorbance ratio (A720/A735) between the absorbances at 720cm and 735cm of an infrared absorption spectrum, based on ethylene, and measured at 130 deg.C, melt extruding the resultant composition to form a film, and drawing the resultant film.