METHOD FOR MANUFACTURING TIRE MEMBER AND METHOD FOR PRODUCING TIRE

• Main Author: KOMIYA YUKI
• Format: Patent
• Language: English; Japanese
• Published: 19.04.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PROBLEM TO BE SOLVED: To provide a method for manufacturing a tire member having high resistance to degradation even when adding an organic acid metal salt in order to increase the adhesiveness between a steel cord and rubber.SOLUTION: There is provided a method for manufacturing a tire member which comprises a step of producing a master batch and a step of mixing the master batch and an organic acid metal salt, wherein the step of producing a master batch comprises a step of coagulating a rubber latex before coagulation treatment containing carbon black to obtain a coagulated product, further a step of adding a compound of the formula (I) to the coagulated product containing water and furthermore a step of dispersing the compound of the formula (I) in the coagulated product. R(R)N-Ph-NH-C=O-C=C-COOM (Formula I) (Rand Reach independently represents H, an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 1 to 20 carbon atoms or an alkynyl group having 1 to 20 carbon atoms; Mrepresents an Na ion, a K ion or an Li ion.)SELECTED DRAWING: None 【課題】スチールコードとゴムの接着性を高めるために有機酸金属塩を添加しても劣化に強いタイヤ部材の製造方法の提供。【解決手段】マスターバッチをつくる工程と、マスターバッチ及び有機酸金属塩を混合する工程とを含むタイヤ部材の製造方法。マスターバッチをつくる工程が、カーボンブラックを含む凝固処理前ゴムラテックスを凝固し、凝固物を得る工程を含み、水を含む凝固物に、式Ｉの化合物を添加する工程を更に含み、式Ｉ化合物を凝固物中に分散する工程をその上更に含むタイヤ部材の製造方法。Ｒ１（Ｒ２）Ｎ−Ｐｈ−ＮＨ−Ｃ＝Ｏ−Ｃ＝Ｃ−ＣＯＯＭ（式１）（Ｒ１及びＲ２は各々独立にＨ、Ｃ１〜２０のアルキル基、Ｃ１〜２０のアルケニル基又はＣ１〜２０のアルキニル基；Ｍ＋はＮａイオン、Ｋイオン又はＬｉイオン）【選択図】なし