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1. (WO2018088919) METHOD FOR PRODUCING MODIFIED POLYDIENES, MODIFIED POLYDIENES PRODUCED THEREBY, AND RUBBER MIXTURES BASED ON THE PRODUCED MODIFIED POLYDIENES
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Pub. No.: WO/2018/088919 International Application No.: PCT/RU2016/000763
Publication Date: 17.05.2018 International Filing Date: 10.11.2016
IPC:
C08F 8/30 (2006.01) ,C08C 19/22 (2006.01) ,C08F 236/04 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
8
Chemical modification by after-treatment
30
Introducing nitrogen atoms or nitrogen-containing groups
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C
TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
19
Chemical modification of rubber
22
Incorporating nitrogen atoms into the molecule
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
236
Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
02
the radical having only two carbon-to-carbon double bonds
04
conjugated
Applicants:
PUBLIC JOINT STOCK COMPANY "SIBUR HOLDING" PUBLIC JOINT STOCK COMPANY "SIBUR HOLDING" [RU/RU]; Eastern Industrial Area, building 30, Block 1, N 6 Tyumen Region, g. Tobolsk, Eastern Industrial Area, building 30, Block 1, N° 6 Tyumen Region, Tobolsk, 626150, RU
Inventors:
LAGUNOVA, Svetlana Alekseevna LAGUNOVA, Svetlana Alekseevna; RU
Agent:
LAW FIRM "GORODISSKY & PARTNERS" LTD.; MITS Alexander Vladimirovich, POPOVA Elizaveta Vitalievna B. Spasskaya str., 25, bldg. 3 Moscow, 129090, RU
Priority Data:
Title (EN) METHOD FOR PRODUCING MODIFIED POLYDIENES, MODIFIED POLYDIENES PRODUCED THEREBY, AND RUBBER MIXTURES BASED ON THE PRODUCED MODIFIED POLYDIENES
(FR) PROCÉDÉ DE PRODUCTION DE POLYDIÈNES MODIFIÉS, POLYDIÈNES MODIFIÉS PRODUITS PAR CE PROCÉDÉ, ET MÉLANGES DE CAOUTCHOUCS À BASE DES POLYDIÈNES MODIFIÉS PRODUITS
Abstract:
(EN) The invention relates to the industry of synthetic rubbers used in the manufacture of tires, industrial rubber goods, in the electrical engineering and other fields. In particular, the present invention relates to a method for producing modified polydienes in an organic solvent on a catalytic system comprising a lanthanide compound, an organoaluminum compound, and a halogen-containing component, followed by terminal modification of the produced "pseudo-living" polymer with at least one compound selected from the group of heterocyclic nitrogen-containing compounds. The present invention also relates to modified polydienes produced by this method. In addition, the invention relates to rubber mixtures based on the produced polydienes. The resulting modified polydiene is characterized by a high degree of modification (not less than 90%), a high content of 1,4-cis-units, by a narrow molecular weight distribution, and an improved processability at the step of rubber mixing; the rubbers produced from the modified polydienes are characterized by an increased wear resistance and improved physical and chemical properties, as well as by improved elastic hysteresis properties (rolling resistance, wet-tire traction).
(FR) L'invention concerne l'industrie des caoutchoucs synthétiques utilisés dans la fabrication des pneumatiques, des produits de caoutchouc industriels, en électrotechnique et dans d'autres domaines. En particulier, la présente invention concerne un procédé de production de polydiènes modifiés dans un solvant organique sur un système catalyseur comprenant un composé lanthanide, un composé organoaluminique et un constituant halogéné, suivie d'une modification terminale du polymère "pseudo-vivant" produit avec au moins un composé choisi dans le groupe des composés hétérocycliques azotés. La présente invention concerne aussi des polydiènes modifiés produits par ce procédé. En outre, l'invention concerne des mélanges de caoutchoucs à base des polydiènes produits. Le polydiène modifié résultant est caractérisé par un degré élevé de modification (non inférieur à 90 %), une teneur élevée en unités 1,4-cis, par une distribution étroite du poids moléculaire, et une aptitude au traitement améliorée à l'étape de mélange de caoutchouc ; les caoutchoucs produits à partir des polydiènes modifiés sont caractérisés par une résistance à l'usure accrue et des propriétés physiques et chimiques améliorées, ainsi que par des propriétés d'hystérésis élastique améliorées (résistance au roulement, traction de pneu humide).
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, JP, KE, KG, 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: English (EN)
Filing Language: English (EN)