公开(公告)号：EP1587867B1

公开(公告)日：2012-05-23

申请号：EP04702669.5

申请日：2004-01-16

申请人： Société de Technologie Michelin ,  Michelin Recherche et Technique S.A.

发明人： CABIOCH, Jean-luc ,  COISSIEUX, Laurent ,  FAVROT, Jean-Michel ,  VARAGNIAT, Franck

IPC分类号： B60C1/00 ,  C08C19/44 ,  C08F36/04 ,  C08F4/48 ,  C08F297/04 ,  C08K3/36 ,  C08L15/00

CPC分类号： C08F36/04 ,  B60C1/0016 ,  C08C19/44 ,  C08F297/044 ,  C08K3/36 ,  C08F4/48 ,  C08L15/00

摘要： The invention relates to a rubber cross-linked or crosslinkable compound which contains a diene elastomer having more than 15 % by weight of cyclic vinyl units higher than 15 % and is used for producing a tire tread. Said tire tread and tire casing incorporating it are also disclosed. The inventive compound comprises a diene linear or branched elastomer made of at least one type of conjugated diene and a reinforcing filler and having more than 15 % by weight of cyclic vinyl groups and a mean molecular mass up to 30 000-350 000 g/mol. Said elastomer is produced by anionic polymerisation of one or several conjugated diene-containing monomers, including a reaction of one or several monomers in a hydrocarbon solvent with a catalytic system containing an organolithic initiator and a polar agent having a plurality of hetero-atoms. Said reaction is carried out either in step-wise manner at a molar ratio (molar agent/initiator) higher than 8 or continuously at a molar ratio (molar agent/initiator) equal to or higher than 3.

公开(公告)号：EP1912802B1

公开(公告)日：2009-01-07

申请号：EP06762383.5

申请日：2006-07-04

申请人： Société de Technologie Michelin ,  Michelin Recherche et Technique S.A.

发明人： LAPRA, Arnaud ,  VARAGNIAT, Franck ,  VEYLAND, Anne

IPC分类号： B60C1/00

CPC分类号： B60C1/0016 ,  C08K3/22 ,  C08K5/548 ,  C08K7/00 ,  C08K9/02 ,  Y10T428/25 ,  Y10T428/266 ,  C08L21/00

摘要： The invention concerns a rubber composition with enhanced vulcanizing kinetics, useful in particular for making tyres or semi-finished products for tyres, based on at least one diene elastomer, a reinforcing filler and a coupling agent binding the filler and the elastomer. The invention is characterized in that said reinforcing filler comprises synthetic magnesium hydroxide Mg(OH)2 wafers, coated with silica. The invention also concerns the use of such a composition for making rubber articles, in particular tyres or rubber semi-finished products for said tyres, in particular running treads. The invention also concerns, per se, said synthetic magnesium hydroxide in the form of wafers coated with silica, as well as its use as reinforcing filler, in particular in a diene elastomer matrix.

公开(公告)号：EP2044148A1

公开(公告)日：2009-04-08

申请号：EP07764942.4

申请日：2007-06-29

申请人： Société de Technologie Michelin ,  Michelin Recherche et Technique S.A.

发明人： VARAGNIAT, Franck ,  GANDON-PAIN, Sylvie ,  LAPRA, Arnaud

IPC分类号： C08L21/00 ,  C08L33/08 ,  B60C1/00

CPC分类号： B60C1/00 ,  B60C1/0016 ,  C08L21/00 ,  C08L33/068 ,  C08L33/08 ,  C08L33/10 ,  C08L2666/14 ,  C08L83/04

摘要： Rubber composition based on at least one dienic elastomer, a polymeric filler as reinforcing filler, and a coupling agent ensuring bonding between the polymeric filler and the elastomer, said composition being characterized in that said polymeric filler comprises non-aromatic vinyl polymer ('PVNA') nanoparticles carrying a function designated Z and of formula ≡Si-X, where X represents a hydroxyl or hydrolysable group. The PVNA is in particular a copolymer of methyl methacrylate, trimethoxysilylpropyl methacrylate and ethylene glycol dimethacrylate, in the form of nanobeads with a diameter of between 10 and 100 nm. By virtue of a very low density, this polymeric filler allows a reduction in the weight of the compositions of the invention, without deterioration in the reinforcement, and with a substantial reduction in hysteresis. Process for producing such a composition. Masterbatch comprising at least one dienic elastomer and a polymeric filler of this kind, and process for producing such a masterbatch. Use of a rubber composition of this kind for manufacturing rubber articles, more particularly tyres, or for manufacturing semi-finished rubber products intended for said tyres.

公开(公告)号：EP1912802A1

公开(公告)日：2008-04-23

申请号：EP06762383.5

申请日：2006-07-04

申请人： Société de Technologie Michelin ,  Michelin Recherche et Technique S.A.

发明人： LAPRA, Arnaud ,  VARAGNIAT, Franck ,  VEYLAND, Anne

IPC分类号： B60C1/00

CPC分类号： B60C1/0016 ,  C08K3/22 ,  C08K5/548 ,  C08K7/00 ,  C08K9/02 ,  Y10T428/25 ,  Y10T428/266 ,  C08L21/00

摘要： The invention concerns a rubber composition with enhanced vulcanizing kinetics, useful in particular for making tyres or semi-finished products for tyres, based on at least one diene elastomer, a reinforcing filler and a coupling agent binding the filler and the elastomer. The invention is characterized in that said reinforcing filler comprises synthetic magnesium hydroxide Mg(OH)2 wafers, coated with silica. The invention also concerns the use of such a composition for making rubber articles, in particular tyres or rubber semi-finished products for said tyres, in particular running treads. The invention also concerns, per se, said synthetic magnesium hydroxide in the form of wafers coated with silica, as well as its use as reinforcing filler, in particular in a diene elastomer matrix.

公开(公告)号：EP1765924B1

公开(公告)日：2008-02-20

申请号：EP05763734.0

申请日：2005-07-06

申请人： Société de Technologie Michelin ,  Michelin Recherche et Technique S.A.

发明人： LAPRA, Arnaud ,  VARAGNIAT, Franck ,  VEYLAND, Anne

IPC分类号： C08K3/22 ,  C08K9/06

CPC分类号： C08K9/02 ,  C08K3/22 ,  C08L21/00

摘要： The invention relates to a rubber composition which can be used to produce tyres and which contains at least one diene elastomer, a reinforcing filler and a coupling agent. The invention is characterised in that the aforementioned filler comprises a silica-coated synthetic metallic hydroxide, the metal of the hydroxide being selected from the group containing Al, Fe, Mg and mixtures of said metals. The invention also relates to the use of one such metallic hydroxide as a reinforcing filler in a diene rubber composition. The metallic hydroxide preferably comprises anisometric aggregates (secondary particles) and the primary particles can also be anisometric, e.g. in the form of rods, thereby providing the inventive compositions with an advantageous property anisotropy, in order to uncouple the mechanical properties thereof. The invention further relates to the use of one such rubber composition for the production of rubber articles, particularly tyres or semi-finished rubber products, such as treads, which are intended for tyres.

公开(公告)号：EP1833905A1

公开(公告)日：2007-09-19

申请号：EP05825564.7

申请日：2005-12-30

申请人： Société de Technologie Michelin ,  Michelin Recherche et Technique S.A.

发明人： LAPRA, Arnaud ,  GANDON-PAIN, Sylvie ,  VARAGNIAT, Franck

IPC分类号： C08L21/00 ,  C08L25/00 ,  B60C1/00

CPC分类号： B60C9/08 ,  C08L9/00 ,  C08L21/00 ,  C08L25/04 ,  C08L25/16 ,  Y10S526/909 ,  C08L2666/06 ,  C08L2666/08

摘要： The invention relates to a rubber composition that is based on at least one diene elastomer, a polymer filler by way of a reinforcing filler and a coupling agent which binds the polymer filler and the elastomer. The invention is characterised in that the polymer filler comprises nanoparticles of polyvinylaromatic (PVAr) bearing a function F having formula = Si _ X, wherein X represents a hydroxyl or hydrolysable group. The PVAr comprises, for example, a copolymer of styrene, ethylvinylbenzene, divinylbenzene and (meth)acrylate of trimethoxysilylpropyl, in the form of nanoshells with a diameter of between 10 and 100 nm. The polymer filler has a very low density and, as such, can be used to reduce the weight of the inventive compositions without degradation of the reinforcement and with a notable reduction in hysteresis. The invention also relates to a method of obtaining one such composition and to a masterbatch containing at least one diene elastomer and one such polymer filler and to the method of obtaining one such masterbatch. The invention further relates to the use of one such rubber composition for the production of rubber articles, particularly tyres or semi-finished products made from rubber that are intended for said tyres.

公开(公告)号：EP1587867A1

公开(公告)日：2005-10-26

申请号：EP04702669.5

申请日：2004-01-16

申请人： Société de Technologie Michelin ,  MICHELIN RECHERCHE ET TECHNIQUE S.A.

发明人： CABIOCH, Jean-luc ,  COISSIEUX, Laurent ,  FAVROT, Jean-Michel ,  VARAGNIAT, Franck

IPC分类号： C08L9/06 ,  C08K3/36 ,  C08F297/04 ,  B60C1/00

CPC分类号： C08F36/04 ,  B60C1/0016 ,  C08C19/44 ,  C08F297/044 ,  C08K3/36 ,  C08F4/48 ,  C08L15/00

摘要： The invention relates to a rubber cross-linked or crosslinkable compound which contains a diene elastomer having more than 15 % by weight of cyclic vinyl units higher than 15 % and is used for producing a tire tread. Said tire tread and tire casing incorporating it are also disclosed. The inventive compound comprises a diene linear or branched elastomer made of at least one type of conjugated diene and a reinforcing filler and having more than 15 % by weight of cyclic vinyl groups and a mean molecular mass up to 30 000-350 000 g/mol. Said elastomer is produced by anionic polymerisation of one or several conjugated diene-containing monomers, including a reaction of one or several monomers in a hydrocarbon solvent with a catalytic system containing an organolithic initiator and a polar agent having a plurality of hetero-atoms. Said reaction is carried out either in step-wise manner at a molar ratio (molar agent/initiator) higher than 8 or continuously at a molar ratio (molar agent/initiator) equal to or higher than 3.

公开(公告)号：EP2044148B1

公开(公告)日：2017-04-05

申请号：EP07764942.4

申请日：2007-06-29

申请人： COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  Michelin Recherche et Technique S.A.

发明人： VARAGNIAT, Franck ,  GANDON-PAIN, Sylvie ,  LAPRA, Arnaud

IPC分类号： C08L21/00 ,  C08L33/08 ,  B60C1/00

CPC分类号： B60C1/00 ,  B60C1/0016 ,  C08L21/00 ,  C08L33/068 ,  C08L33/08 ,  C08L33/10 ,  C08L2666/14 ,  C08L83/04

公开(公告)号：EP1833905B1

公开(公告)日：2013-08-07

申请号：EP05825564.7

申请日：2005-12-30

申请人： COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  Michelin Recherche et Technique S.A.

发明人： LAPRA, Arnaud ,  GANDON-PAIN, Sylvie ,  VARAGNIAT, Franck

IPC分类号： C08L21/00 ,  C08L25/00 ,  B60C1/00

CPC分类号： B60C9/08 ,  C08L9/00 ,  C08L21/00 ,  C08L25/04 ,  C08L25/16 ,  Y10S526/909 ,  C08L2666/06 ,  C08L2666/08

公开(公告)号：EP1765924A1

公开(公告)日：2007-03-28

申请号：EP05763734.0

申请日：2005-07-06

申请人： MICHELIN Recherche et Technique S.A.

发明人： LAPRA, Arnaud ,  VARAGNIAT, Franck ,  VEYLAND, Anne

IPC分类号： C08K3/22 ,  C08K9/06

CPC分类号： C08K9/02 ,  C08K3/22 ,  C08L21/00

摘要： The invention relates to a rubber composition which can be used to produce tyres and which contains at least one diene elastomer, a reinforcing filler and a coupling agent. The invention is characterised in that the aforementioned filler comprises a silica-coated synthetic metallic hydroxide, the metal of the hydroxide being selected from the group containing Al, Fe, Mg and mixtures of said metals. The invention also relates to the use of one such metallic hydroxide as a reinforcing filler in a diene rubber composition. The metallic hydroxide preferably comprises anisometric aggregates (secondary particles) and the primary particles can also be anisometric, e.g. in the form of rods, thereby providing the inventive compositions with an advantageous property anisotropy, in order to uncouple the mechanical properties thereof. The invention further relates to the use of one such rubber composition for the production of rubber articles, particularly tyres or semi-finished rubber products, such as treads, which are intended for tyres.