公开(公告)号：US11851566B2

公开(公告)日：2023-12-26

申请号：US17296064

申请日：2019-11-27

申请人： Pirelli Tyre S.p.A.

发明人： Antonio Susanna ,  Raffaella Donetti ,  Thomas Hanel ,  Roberto Scotti ,  Barbara Di Credico ,  Silvia Mostoni ,  Massimiliano D'Arienzo

IPC分类号： C08L9/00 ,  C09C1/30 ,  C09C3/12 ,  B60C1/00

CPC分类号： C08L9/00 ,  B60C1/00 ,  C09C1/3081 ,  C09C3/12 ,  C01P2002/82 ,  C01P2002/85 ,  C01P2002/86 ,  C01P2002/88 ,  C08L2312/00

摘要： The present invention relates to a compound represented by the formula (II): CB-O-ROS-GC-Zn (II) where CB represents the white filler, O represents one or more oxygen bridge bonds, ROS represents an organo-silane residue, GC represents one or more coordinating groups forming a chelate with zinc in ionic form represented by linear, branched or cyclic alkyl chains, comprising one or more heteroatoms inside or at the end of the alkyl chain, and Zn represents zinc in ionic form coordinated with the coordinating groups, a process for the preparation thereof, and the use thereof in the vulcanisation process of elastomeric compounds.

公开(公告)号：US11661498B2

公开(公告)日：2023-05-30

申请号：US17282463

申请日：2019-10-09

申请人： Pirelli Tyre S.p.A.

发明人： Antonio Susanna ,  Raffaella Donetti ,  Luca Giannini ,  Thomas Hanel ,  Roberto Scotti ,  Barbara Di Credico

IPC分类号： C08L9/02 ,  C08L9/06 ,  C08K3/36 ,  C08K3/08 ,  B60C1/00 ,  C08K5/5419

CPC分类号： C08L9/02 ,  B60C1/00 ,  C08K3/08 ,  C08K3/36 ,  C08K5/5419 ,  C08L9/06 ,  C08K2003/0893

摘要： The present invention relates to a process for preparing a vulcanisable elastomeric compound for tyres, characterised by the use of a particular vulcanisation-activating filler and by the methods of adding additives, in particular the compatibilising agent (silane), which occurs only after completion of the reaction between the activating filler comprising zinc and the fatty acid (stearic acid). The present process, advantageous in itself due to the possible reduction of the times and of the energy required for vulcanisation, allows preparing compounds which, with the same performances compared to the traditional ones, can have a reduced zinc content, and consequently a lower release thereof from tyres during use at an environmental level.