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公开(公告)号：US10682885B2
公开(公告)日：2020-06-16
申请号：US15560993
申请日：2016-04-27
申请人： PIRELLI TYRE S.P.A.
摘要： A tyre for wheels of vehicles, in particular motor vehicles, is described. The tyre has a tread with at least one copolymer selected from iso-styrene: diene-terminated copolymers. The tread has less sensitivity to the effects of temperature, with less weakness, better consistency of performances, and improved characteristics in terms of grip and/or resistance to laceration.
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公开(公告)号：US11732115B2
公开(公告)日：2023-08-22
申请号：US16306406
申请日：2017-06-06
申请人： PIRELLI TYRE S.p.A.
发明人： Pierluigi De Cancellis , Thomas Hanel , Francesco Parazzoli , Giuseppina Ratti , Juergen Wagemann , Marianna Zinna
CPC分类号： C08L9/06 , B60C1/0016 , B60C1/0025 , B60C2001/0058 , C08L2205/03 , C08L2207/04
摘要： The present invention relates to a tire (100) for vehicle wheels comprising a tire component comprising a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition, wherein said elastomeric composition comprises a polymer blend comprising (a) 50 to 95 percent by weight of a first elastomeric polymer and (b) 5 to 50 percent by weight of a second elastomeric polymer based on the total weight of the polymer blend. The second elastomeric polymer (b) is obtainable by (i) anionic polymerization of at least one conjugated diene monomer and one or more a-olefin monomer(s) in the presence of a polymerization initiator in an organic solvent, and (ii) coupling the polymer chains obtained in (i) by a coupling agent. The second elastomeric polymer (b) has a weight-average molecular weight (Mw) in the range of 5,000-40,000 g/mol and a coupling rate of at least 50 percent by weight.
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公开(公告)号：US11208542B2
公开(公告)日：2021-12-28
申请号：US16467190
申请日：2017-12-12
发明人： Carlo Vittorio Mazzocchia , Matteo Antonio Daghetta , Lorenzo Pellegrino , Attillio Citterio , Enrico Albizzati , Luca Giannini , Thomas Hanel
IPC分类号： C01B32/162 , B01J23/745 , B01J37/04 , B01J37/08 , C08L9/00 , B01J37/02 , B01J37/03 , B60C1/00
摘要： The present invention relates to a tyre for vehicle wheels comprising at least one structural element comprising a cross-linked elastomeric material obtained by cross-linking a cross-linkable elastomeric composition comprising carbon nanotubes, wherein said carbon nanotubes are obtained with an iron oxides and/or aluminium oxides based catalyst substantially free of Co, Ni and Mo.
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4.发明授权公开(公告)号：US11091607B2
公开(公告)日：2021-08-17
申请号：US16343638
申请日：2017-10-13
申请人： PIRELLI TYRE S.P.A.
发明人： Luciano Tadiello , Luca Giannini , Thomas Hanel , Matteo Redaelli , Massimiliano D'Arienzo , Barbara Di Credico , Roberto Scotti , Franca Morazzoni
摘要： The present invention relates to new elastomeric materials for the production of tyres for vehicle wheels with good mechanical properties, in particular high moduli associated with low hysteresis values, including new reinforcement materials. Said reinforcement materials are obtainable by derivatising silica—in-situ during the mixing of the elastomeric composition, or previously—with special silanising agents (A) and silsesquioxanes (B), both substituted with reactive alkenyl functionalities.
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公开(公告)号：US12031035B2
公开(公告)日：2024-07-09
申请号：US17455165
申请日：2021-11-16
发明人： Carlo Vittorio Mazzocchia , Matteo Antonio Daghetta , Lorenzo Pellegrino , Attillio Citterio , Enrico Albizzati , Luca Giannini , Thomas Hanel
IPC分类号： C01B32/162 , B01J23/745 , B01J37/02 , B01J37/03 , B01J37/04 , B01J37/08 , B60C1/00 , C08L9/00
CPC分类号： C08L9/00 , B01J23/745 , B01J37/0236 , B01J37/036 , B01J37/04 , B01J37/08 , B60C1/0016 , B60C1/0025 , C01B32/162 , C08L2205/025 , C08L2312/00
摘要： The present invention relates to a tyre for vehicle wheels comprising at least one structural element comprising a cross-linked elastomeric material obtained by cross-linking a cross-linkable elastomeric composition comprising carbon nanotubes, wherein said carbon nanotubes are obtained with an iron oxides and/or aluminium oxides based catalyst substantially free of Co, Ni and Mo.
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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
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.
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7.发明授权公开(公告)号：US11383554B2
公开(公告)日：2022-07-12
申请号：US16343669
申请日：2017-10-20
申请人： PIRELLI TYRE S.P.A.
发明人： Luca Giannini , Luciano Tadiello , Thomas Hanel , Elkid Cobani , Barbara Di Credico , Massimiliano D'Arienzo , Roberto Scotti , Franca Morazzoni , Jorge Jose Perez Cacho , Daniel Javier Julve Sebastian
摘要： The present invention relates to new vulcanisable elastomeric compositions for components of tyres, comprising modified silicate fibres as fillers. The silicate fibres are modified according to the process with controlled pH of the invention. In addition, the invention regards components of tyres, comprising elastomeric materials obtainable by vulcanisation of said compositions, and tyres for vehicles comprising one or more of said components. The vulcanised elastomeric materials according to the invention are characterised by good static and dynamic mechanical properties, in particular by particularly low hysteresis. Advantageously the tyres of the invention comprising one or more of said components have a limited rolling resistance.
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公开(公告)号：US11161944B2
公开(公告)日：2021-11-02
申请号：US16469849
申请日：2017-12-18
发明人： Luciano Tadiello , Valeria Rosaria Cipolletti , Luca Giannini , Thomas Hanel , Maurizio Galimberti , Roberto Scotti , Barbara Di Credico , Franca Morazzoni , Massimiliano D'Arienzo , Irene Tagliaro
IPC分类号： C08J3/22 , C08K3/011 , B60C1/00 , C08K3/06 , C08K3/36 , C08K7/10 , C08L7/00 , C08L9/02 , C08L9/06
摘要： The present invention regards a solid master elastomeric composition (masterbatch, MB) comprising silicate fibres with needle-shaped morphology of nanometric size, characterised by high fibre content and uniformity, a process advantageous for the preparation thereof and its use in manufacturing tyres for vehicles. Advantageously the present elastomeric composition allows minimising the drawbacks associated with the handling of the powdery fibres in the manufacturing of compounds for tyres, without altering the final performances thereof.
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公开(公告)号：US10308072B2
公开(公告)日：2019-06-04
申请号：US15565671
申请日：2016-04-29
发明人： Luca Giannini , Luciano Tadiello , Thomas Hanel , Maurizio Galimberti , Valeria Cipolletti , Giulia Peli , Franca Morazzoni , Roberto Scotti , Barbara Di Credico
IPC分类号： C08K3/34 , C08L7/00 , B60C1/00 , C08L21/00 , C08K3/36 , C08K5/548 , C08K7/10 , C08L9/06 , C08L9/00
摘要： A vulcanizable elastomeric composition for tire component is described. The vulcanizable elastomeric composition includes modified silicate fibers as fillers. Moreover, the tire component contains elastomeric materials which are obtainable by vulcanization of the vulcanizable elastomeric composition. A tire for vehicles which includes one or more of the tire components is also described. The vulcanized elastomeric materials are characterized by having good static and dynamic mechanical properties, and particularly low hysteresis. Advantageously, the tire which contains one or more of the tire components has a reduced rolling resistance.
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公开(公告)号：US11999193B2
公开(公告)日：2024-06-04
申请号：US17936989
申请日：2022-09-30
申请人： Pirelli Tyre S.p.A.
CPC分类号： B60C1/0025 , B60C1/00 , B60C13/001 , C08K5/06 , C08K5/13 , C08K5/15 , C08L9/00 , C08L2201/08 , C08L2205/03
摘要： The present invention relates to a tyre for vehicle wheels comprising at least one external structural element comprising at least one external structural element comprising a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising (i) at least one diene elastomeric polymer, and (ii) a system for protection against ozone substantially free of polymeric static protective agents which essentially consists of at least one phenolic antioxidant in an amount substantially equal to or higher than 3 phr.
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