EP 4284662 A1 20231206 - RESIN-EXTENDED MODIFIED DIENE RUBBER
Title (en)
RESIN-EXTENDED MODIFIED DIENE RUBBER
Title (de)
HARZVERLÄNGERTER MODIFIZIERTER DIENKAUTSCHUK
Title (fr)
ELASTOMERE DIENIQUE MODIFIE ETENDU A LA RESINE
Publication
Application
Priority
- FR 2100886 A 20210129
- FR 2022050080 W 20220114
Abstract (en)
[origin: WO2022162293A1] The invention relates to a resin-extended modified diene rubber obtainable by a process involving at least: an anionic polymerization step, in an organic solvent, of at least one conjugated diene monomer having 4 to 12 carbon atoms in the presence of a polymerization initiator to form a living diene rubber having a number average molar mass Mn1 measured by triple detection size exclusion chromatography; a step of modifying the living diene rubber having the number average molar mass Mn1 in the organic solvent by reacting same with a modifier to form a modified diene rubber having a number average molar mass Mn2 measured by triple detection size exclusion chromatography and a glass transition temperature, measured according to ASTM D3418-08, within a range of -95° C to -70° C; a step of adding at least one plasticizing resin to the organic solvent comprising the modified diene rubber; a step of removing the organic solvent to obtain the resin-extended modified diene rubber; the resin-extended modified diene rubber having a ratio Mn2/Mn1 strictly greater than 1.00 and a minimum Mn2 of 200,000 g/mol.
IPC 8 full level
B60C 1/00 (2006.01); C08C 19/22 (2006.01); C08C 19/24 (2006.01); C08C 19/25 (2006.01); C08C 19/26 (2006.01); C08F 236/06 (2006.01); C08L 15/00 (2006.01)
CPC (source: EP KR US)
B60C 1/00 (2013.01 - EP); B60C 1/0016 (2013.01 - EP KR US); B60C 11/0008 (2013.01 - US); C08C 19/22 (2013.01 - EP KR US); C08C 19/24 (2013.01 - EP KR); C08C 19/25 (2013.01 - EP KR US); C08C 19/26 (2013.01 - EP KR); C08F 236/06 (2013.01 - EP); C08F 236/10 (2013.01 - KR); C08L 9/06 (2013.01 - US); C08L 15/00 (2013.01 - EP KR); B60C 2011/0025 (2013.01 - US)
C-Set (source: EP)
C08L 15/00 + C08L 45/00 + C08L 91/00 + C08K 3/36 + C08K 5/548 + C08K 3/04 + C08K 3/22 + C08K 5/09 + C08K 5/18 + C08K 5/31 + C08K 3/06 + C08K 5/47
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022162293 A1 20220804; CN 116829372 A 20230929; EP 4284662 A1 20231206; FR 3119394 A1 20220805; FR 3119394 B1 20240419; KR 20230137985 A 20231005; US 2024109980 A1 20240404
DOCDB simple family (application)
FR 2022050080 W 20220114; CN 202280012109 A 20220114; EP 22709344 A 20220114; FR 2100886 A 20210129; KR 20237029453 A 20220114; US 202218274745 A 20220114