고무 조성물 및 그의 제조 방법 및 타이어 제품

• Main Authors: ASHIURA MAKOTO, UEDA NAHO, CHINO KEISUKE, UCHIZAWA SHOTARO, MATSUO YUSUKE, AKIYAMA YOICHI
• Format: Patent
• Language: Korean
• Published: 21.03.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; 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

[과제] 타이어의 내마모성을 향상할 수 있는 고무 조성물의 제공. [해결 수단] 본 발명의 고무 조성물은, 유리 전이 온도가 -60℃ 이상인 고무 성분과, 함황 탄화수소 중합체를 포함하는 고무용 첨가제를 포함하고, 상기 함황 탄화수소 중합체가, 불포화 탄화수소의 중합체와 황의 반응 생성물이며, 상기 불포화 탄화수소가 지환식 불포화 화합물을 포함하고, 상기 함황 탄화수소 중합체의 중량 평균 분자량이 500 이상 4000 이하인 것을 특징으로 한다. A rubber composition that can improve the abrasion resistance of a tire is provided. The rubber composition includes: a rubber component having a glass transformation temperature of -60°C or more; and an additive for rubber, including a sulfur-containing hydrocarbon polymer. In the rubber composition, the sulfur-containing hydrocarbon polymer is a reaction product of sulfur and a polymer of an unsaturated hydrocarbon, and the unsaturated hydrocarbon includes an alicyclic unsaturated compound, and the sulfur-containing hydrocarbon polymer has a weight-average molecular weight of 500 or more and 4000 or less.