JPH05311069

PURPOSE:To obtain a surface modifier excellent in the function of improving the reinforcing effect of carbon fibers on a matrix resin by using an organic compound containing a plurality of carbodiimide bonds in the molecule as the principal component. CONSTITUTION:The modifier comprises an organic c...

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Hauptverfasser:	TAKAYANAGI HIROSHI, NAKANO HIROMI, YAMAGUCHI TERUHIRO, ICHIKAWA FUMIAKI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING LAUNDERING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a surface modifier excellent in the function of improving the reinforcing effect of carbon fibers on a matrix resin by using an organic compound containing a plurality of carbodiimide bonds in the molecule as the principal component. CONSTITUTION:The modifier comprises an organic compound containing at least two carbodiimide bonds in the molecule as the principal component and optionally another modifier. A desirable example of the organic compound is a carbodiimide copolymer comprising 5-95mol% groups containing structural units of formula I and 95-5mol% groups containing structural units of formula II and having a weight-average molecular weight of 10000 or below. A composite material of markedly improved mechanical strengths, etc., is, obtained by surface-treating carbon fibers with the obtained modifier and mixing the modified carbon fibers with a thermoplastic resin such as a polycarbonate resin or a polyamide resin.