EP 1620471 A2 20060201 - METHOD FOR OBTAINING AN ELASTOMER GRAFT WITH FUNCTIONAL GROUPS ALONG THE CHAIN AND RUBBER COMPOSITIONS
Title (en)
METHOD FOR OBTAINING AN ELASTOMER GRAFT WITH FUNCTIONAL GROUPS ALONG THE CHAIN AND RUBBER COMPOSITIONS
Title (de)
HERSTELLUNGSVERFAHREN EINES PFROPFELASTOMERS MIT FUNKTIONELLEN GRUPPEN ENTLANG DER KETTE UND KAUTSCHUKMISCHUNG
Title (fr)
PROCEDE D'OBTENTION D'UN ELASTOMERE GREFFE A GROUPES FONCTIONNELS LE LONG DE LA CHAINE ET COMPOSITION DE CAOUTCHOUC
Publication
Application
Priority
- EP 2004004510 W 20040429
- FR 0305305 A 20030429
Abstract (en)
[origin: WO2004096865A2] The invention concerns a method for obtaining a grafted diene elastomer comprising functional groups along the chain, a rubber composition comprising said grafted elastomer and having in particular hysteretic properties when crosslinked, and a method for preparing said composition. The invention also concerns a tyre running tread comprising said composition and a tyre with reduced running resistance incorporating said running tread. The method for obtaining said grafted elastomer consists in performing a free radical grafting reaction carried out in solution or in mass using a mercaptan type reagent and designed to graft said groups on the chain of an initial elastomer. The invention is characterized in that it consists in treating said initial elastomer with an antioxidant comprising at least one aromatic amine function prior to the grafting reaction, so that the grafted elastomer has a macrostructure almost identical to that of the initial elastomer. The inventive rubber composition comprises a reinforcing inorganic filler, and said grafted elastomer has a proportion of molar units derived from conjugated dienes higher than 30 %.
IPC 1-7
C08C 19/20; C08L 9/00; C08K 5/18; C08L 19/00; C08K 3/36; B60C 1/00
IPC 8 full level
B60C 1/00 (2006.01); C08C 19/20 (2006.01); C08K 3/00 (2006.01)
CPC (source: EP KR US)
B60C 1/0016 (2013.01 - EP US); C08C 19/20 (2013.01 - EP US); C08F 279/02 (2013.01 - KR); C08K 3/013 (2017.12 - EP US); C08K 3/36 (2013.01 - KR); C08L 51/04 (2013.01 - KR); Y02T 10/86 (2013.01 - EP US)
Citation (search report)
See references of WO 2004096865A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2854404 A1 20041105; FR 2854404 B1 20050701; AU 2004234058 A1 20041111; BR PI0409806 A 20060509; CN 1780859 A 20060531; CN 1780859 B 20101103; EP 1620471 A2 20060201; JP 2006524725 A 20061102; JP 4874791 B2 20120215; KR 101186129 B1 20120927; KR 20060008938 A 20060127; RU 2005136980 A 20060320; RU 2337923 C2 20081110; US 2006089445 A1 20060427; US 7312264 B2 20071225; WO 2004096865 A2 20041111; WO 2004096865 A3 20050210
DOCDB simple family (application)
FR 0305305 A 20030429; AU 2004234058 A 20040429; BR PI0409806 A 20040429; CN 200480011490 A 20040429; EP 04730253 A 20040429; EP 2004004510 W 20040429; JP 2006505312 A 20040429; KR 20057020539 A 20040429; RU 2005136980 A 20040429; US 25698605 A 20051025