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1. (WO2019043929) POLYBUTADIENE RUBBER
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Pub. No.: WO/2019/043929 International Application No.: PCT/JP2017/031679
Publication Date: 07.03.2019 International Filing Date: 01.09.2017
IPC:
C08L 9/00 (2006.01) ,B60C 1/00 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
9
Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
1
Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
Applicants:
宇部興産株式会社 UBE INDUSTRIES, LTD. [JP/JP]; 山口県宇部市大字小串1978番地の96 1978-96, Oaza Kogushi, Ube-shi, Yamaguchi 7758633, JP
Inventors:
鹿野 勇斗 KANOU Yuuto; JP
安部 光春 AMBE Mitsuharu; JP
岡部 恭芳 OKABE Yasuyoshi; JP
神林 洸 KANBAYASHI Kou; JP
山垣 将 YAMAGAKI Masashi; JP
Agent:
赤塚 正樹 AKATSUKA Masaki; JP
Priority Data:
Title (EN) POLYBUTADIENE RUBBER
(FR) CAOUTCHOUC DE POLYBUTADIÈNE
(JA) ポリブタジエンゴム
Abstract:
(EN) The present invention provides a polybutadiene rubber that is improved in terms of abrasion resistance and low loss property while maintaining processability. The polybutadiene rubber according to the present invention comprises: a polybutadiene (A) satisfying the conditions in which the ratio (Tcp/ML) of the 5 wt% toluene solution viscosity to the Mooney viscosity is 2.5 or more, and the weight average molecular weight is 60.0×104 or more; and a polybutadiene (B) satisfying the conditions in which the ratio (Tcp/ML) of the 5 wt% toluene solution viscosity to the Mooney viscosity is 3.5 or less, and the weight average molecular weight is 56.0x104 or less, wherein the polybutadiene (A)/the polybutadiene (B) is 10/90-80/20.
(FR) L'invention fournit un caoutchouc de polybutadiène qui tout en étant doté de propriétés d'usinage, présente une amélioration en termes de résistance à l'usure et de propriétés de faibles pertes. Le caoutchouc de polybutadiène de l'invention contient : un polybutadiène (A) qui satisfait des conditions telles que son rapport de viscosité de solution de toluène à 5 % en masse et de viscosité de Mooney (Tcp/ML) est supérieur ou égal à 2,5, et sa masse moléculaire moyenne en poids est supérieure ou égale à 60,0×10, et un polybutadiène (B) qui satisfait des conditions telles que son rapport de viscosité de solution de toluène à 5 % en masse et de viscosité de Mooney (Tcp/ML) est inférieur ou égal à 3,5, et sa masse moléculaire moyenne en poids est inférieure ou égale à 56,0×10, le rapport polybutadiène (A) / polybutadiène (B) étant compris entre 10/90 et 80/20.
(JA) 本発明は、加工性を保ちつつ、耐摩耗性及び低ロス性が改良されたポリブタジエンゴムを提供する。本発明に係るポリブタジエンゴムは、5重量%トルエン溶液粘度とムーニー粘度の比(Tcp/ML)が2.5以上、及び重量平均分子量が60.0×10以上の条件を満たすポリブタジエン(A)と、5重量%トルエン溶液粘度とムーニー粘度の比(Tcp/ML)が3.5以下、及び重量平均分子量が56.0×10以下の条件を満たすポリブタジエン(B)とを含み、前記ポリブタジエン(A)/前記ポリブタジエン(B)が、10/90~80/20である。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)