본 발명은 적어도 하기 성분: I) a) -70℃ 내지 -10℃의 유리 전이 온도 (Tg)를 갖는 적어도 하나의 용액 SBR (L-SBR) (오일-무함유) 15 - 79 pbw, 바람직하게는 20 - 70 pbw, b) -95℃ 내지 -115℃의 유리 전이 온도 (Tg)를 갖는 적어도 하나의 1,4-시스-폴리부타디엔 (BR) (오일-무함유) 20 - 75 pbw, 바람직하게는 25 - 70 pbw, 및 c) 오일-무함유 고무 (NR) 또는 오일-무함유 합성 제조된 폴리이소프렌 (IR)에 대해 -50℃ 내지 -75℃의 유리 전이 온도 (Tg)를 갖는 천연 고무 (NR) (오일-무함유) 및/또는 적어도 하나의 합성 제조된 폴리이소프렌 (IR) 1 - 37.5 pbw, 바람직하게는 5 - 35 pbw로 이루어진 오일-무함유 고무 매트릭스 100 pbw, II) 히드록실 기를 함유하는 적어도 하나의 폴리부타디엔-기재 마이크로겔, III) 히드록실 기를 함유하는 적어도 하나의 산화물 충전제, IV) 적어도 하나의 폴리술피드-함유 알콕시실란, V) 적어도 하나의 가황제, 및 VI) 임의로는 적어도 하나의 고무 첨가제를 함유하는 가황성 고무 혼합물에 관한 것이다.
Vulcanizable rubber mixture comprises: (I) 100 pts. wt. of an oil-free rubber matrix consisting of (a) 15-79 (preferably 20-70) pts. wt. of at least one solution styrene-butadiene rubber, (b) 20-75 (preferably 25-70) pts. wt. of at least one 1,4-cis-polybutadiene, (c) 1-37.5 (preferably 5-35) pts. wt. of natural rubber (oil-free) and/or at least one synthetically produced polyisoprene; (II) at least one polybutadiene-based microgel that contains hydroxyl groups; (III) at least one oxide filler that contains hydroxyl groups; and (IV) at least one polysulfide-containing alkoxysilane. Vulcanizable rubber mixture comprises: (I) 100 pts. wt. of an oil-free rubber matrix consisting of (a) 15-79 (preferably 20-70) pts. wt. of at least one solution styrene-butadiene rubber (L-SBR) (oil-free) with a glass transition temperature of -70[deg] C to -10[deg] C, (b) 20-75 (preferably 25-70) pts. wt. of at least one 1,4-cis-polybutadiene (oil-free) with a glass transition temperature of -95[deg] C to -115[deg] C, (c) 1-37.5 (preferably 5-35) pts. wt. of natural rubber (oil-free) and/or at least one synthetically produced polyisoprene with a glass transition temperature of -50[deg] C to -75[deg] C; (II) at least one polybutadiene-based microgel that contains hydroxyl groups; (III) at least one oxide filler that contains hydroxyl groups; (IV) at least one polysulfide-containing alkoxysilane; (V) at least one vulcanization agent; and (VI) optionally at least one rubber additive. Independent claims are included for: (1) producing vulcanizable rubber mixtures, comprising mixing the components (I)-(IV) in one-more steps with one another, preferably either by a three-stage mixing process with two mixing stages in an internal mixer, and a final mixing stage on a roller, by a two stage mixing process, in which the first mixing stage is carried out in the internal mixer and the second mixing step is carried out on the roller, or by the two stage mixing process, in which the two mixing stages are carried out in the internal mixer, where the mixture is added before the addition of the components in the three-stage mixing process in the roller and cooled at a temperature of less than 120 (preferably 110)[deg] C; and (2) producing vulcanizates, comprising subjecting the vulcanizable rubber mixtures to a crosslinking reaction, preferably at a temperature of 100-250 (preferably 130-180)[deg] C, under a pressure of 1-200 bar.
- MICROGEL-CONTAINING TREAD MIXTURE FOR WINTER TYRES
겨울용 타이어를 위한 마이크로겔-함유 트레드 혼합물
2019-08-19
Patent
Electronic Resource
Korean
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08J Verarbeitung , WORKING-UP / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
Method to prepare treads for tyres, rubber compound, tread portion and winter tyre
European Patent Office | 2017
|Elsevier | 1964