POLYESTER CORD FOR REINFORCEMENT OF RUBBER AND A METHOD FOR MANUFACTURING THE SAME

• Main Authors: IMAOKA KATSUTOSHI, KOHASHI MASANAO
• Format: Patent
• Language: English
• Published: 05.03.2009
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LAUNDERING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MECHANICAL FINISHING OF YARNS OR ROPES; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; SPINNING; SPRAYING OR ATOMISING IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TEXTILES; TRANSPORTING; 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; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL; WARPING OR BEAMING; YARNS; YARNS OR THREADS

The present invention relates to a polyester cord for reinforcement of rubber where heat-resistant adhesive property when exposed to high temperature for long time in a state of being embedded in a rubber composition or under a high-temperature atmosphere is significantly improved, stiffness of the cord is made soft to such a level which is no problem in terms of practical use in view of anti-fatigue property and also of molding and processing property of the rubber-reinforced product and a high elastic modulus is available; and a method for manufacturing the same. A method for the manufacture of a polyester cord for reinforcement of rubber, characterized in that, a polyester fiber material where an epoxy compound is previously applied in a stage of non-drawn yarn or drawn yarn or in a stage of twisted yarn cord so that an adhesively activated treatment is conducted is treated with a treating solution containing the three components of (A) an aqueous solution of blocked isocyanate, (B) a dispersion of epoxy resin and (C) resorcinol-formaldehyde-latex mixed liquid by a single-stage treatment or a multi-stage treatment of two or more stages whereby adhesive property to rubber is endowed to said polyester fiber material.