| 摘要 |
1531363 Improving adhesion of filaments RHONE-POULENC TEXTILE 27 Jan 1976 [27 Jan 1975 26 Nov 1975] 03097/76 Heading D1P A filament, yarn or, less, preferably, a fabric is coated with an adhesion-priming composition containing 1, 3, 5-tris [3-(2, 3- epoxypropoxy) propinonyl] hexahydro-5-triazine and a finishing agent. The composition is preferably an aqueous solution of 1 to 30% of the triepoxide. The finishing agent may be one or more of an animal, vegetable or mineral oil, a sulphonated such oil, hexaglycol stearate, a condensate of ethylene oxide with a branched chain alcohol, olein, diethylene glycol, polyoxyethylene glycol and triethanolamine. It may be applied to a freshly extruded filament (or yarn) and the drying step combined with a hot drawing of the filament. The treated filament or yarn is then immersed in a bath containing resorcinal, formaldehyde, polyvinylpyridine latex, natural rubber latex and styrene butadiene latex and dried whilst being hotdrawn. Preferably the filament or yarn is cabled before or after immersion in the latex bath and then used in the manufacture of tyre cords. The uptake of coating composition and the breaking load, tenacity, elongation, shrinkage and adhesion to rubber are quantified. The adhesion to phenoplast, epoxy and polyester resins is also improved woven and knitted fabrics may be treated before laminating by means of adhesive. The filaments may be of polyester obtained by polymerising one or more of terephthalic acid, isophthalic acid, 2, 6-dicarboxynaphthalene, 4, 4'-dicarboxydiphenyl, 4, 4' dicarboxydiphenylsulphone and 4, 4' dicarboxy-1", 2" diphenoxyethane with ethylene diol, a cycloalkane diol or a cycloaliphatic diol having 2 to 10 carbon atoms. Alternatively they may be of carbon, glass, poly/paraphenylene terephthalamide, poly-para-benzamide, poly/paraphenylene hexamethylene terephthalamide and copolyamides derived from terephthalic acid or adipic acid and tetramethylene diamine or para-phenylene diamine, polyarylene 1, 3, 4- oxadiazole, copolyoxazoles produced from a mixture of isophthalic acid and terephthalic acid or one of the latter with an aliphatic or cycloaliphatic diacid, and polyvinyl alcohol. Preferably the filaments have a tenacity of at least 50 g/tex, e.g. at least 100 g/tex and a young modulus of at least 30 g/denier (1.1 dtex). |
