公开(公告)号：US09701764B2

公开(公告)日：2017-07-11

申请号：US14356248

申请日：2012-11-23

Applicant: VERSALIS S.P.A.

Inventor： Andrea Vallieri ,  Costantino Perretta

IPC: C08F4/68 ,  C08F210/16 ,  C08F210/18

CPC classification number: C08F4/68 ,  C08F210/16 ,  C08F210/18

Abstract: A process for the preparation of an elastomeric polymer of ethylene which comprises polymerizing, in suspension, a mixture of monomers comprising ethylene, at least one a-olefin having from 3 to 12 carbon atoms, possibly at least one non-conjugated diene having from 4 to 20 carbon atoms, in the presence of a catalytic system comprising: —a suspension in oil of at least one catalyst selected from compounds containing vanadium; —at least one co-catalyst, as such, selected from compounds containing aluminum; at least one activator, as such, selected from compounds containing chlorine.

公开(公告)号：US12247095B2

公开(公告)日：2025-03-11

申请号：US17058413

申请日：2019-05-29

Applicant: VERSALIS S.P.A.

Inventor： Costantino Perretta ,  Silvana Di Martino

IPC: C08F236/06 ,  C08F2/06 ,  C08F4/14 ,  C08F4/54 ,  C08F236/08 ,  C08K3/04 ,  C08K3/36 ,  B60C1/00

Abstract: Process for preparing a random butadiene-isoprene copolymer having a high content of cis-1,4 units comprising copolymerizing butadiene and isoprene, in the presence of at least one organic solvent, and a catalytic system prepared in situ comprising: (a1) at least one neodymium carboxy late soluble in said organic solvent, containing a variable amount of water, the H2O/Nd molar ratio being between 0.001/1 and 0.50/1: (a2) at least one aluminum alkyl compound: (a3) at least one aluminum alkyl compound containing at least one halogen atom. The random butadiene-isoprene copolymer having a high content of cis-1.4 units obtained from the abovementioned process may be advantageously used in a number of applications ranging from the modification of plastics [for example, obtainment of high impact polystyrene (HIPS)], to the production of tires, in particular the production of tire treads and/or of tire sidewalls.

公开(公告)号：US20150080526A1

公开(公告)日：2015-03-19

申请号：US14388474

申请日：2013-04-24

Applicant: VERSALIS S.P.A.

Inventor： Andrea Vallieri ,  Marianna Zinna ,  Costantino Perretta

IPC: C08F136/06 ,  C08K3/36 ,  C08K3/04

CPC classification number: C08F136/06 ,  B60C1/00 ,  C08F36/06 ,  C08K3/04 ,  C08K3/36 ,  C08F4/545 ,  C08L9/00

Abstract: A process for the preparation of branched polybutadiene having a high content of 1,4-cis units which comprises polymerizing butadiene in the presence of at least one organic solvent, and in the presence of: a) a catalytic system prepared in situ including: (a1) at least one neodymium carboxylate, (a2) at least one alkyl compound of aluminum, (A3) at least one alkyl compound of aluminum containing at least one halogen atom, and b) at least one organic ester containing at least one halogen atom. Said branched polybutadiene having a high content of 1,4-cis units, depending on the branching degree and molecular weight distribution, can be advantageously used in various applications ranging from the modification of plastic materials [production, for example, of high impact polystyrene (HIPS)] to the production of tyres, in particular the production of treads and/or of sidewalls of tyres.

Abstract translation: 一种制备具有高含量1,4-顺式单元的支化聚丁二烯的方法，其包括在至少一种有机溶剂的存在下使丁二烯聚合，并且在以下存在下：a）原位制备的催化体系，包括：（ a1）至少一种羧酸钕，（a2）至少一种铝的烷基化合物，（A3）至少一种含有至少一个卤素原子的铝的烷基化合物，和b）至少一种含有至少一个卤素原子的有机酯 。 根据支化度和分子量分布，具有高含量1,4-顺式单元的所述支化聚丁二烯可以有利地用于各种应用，从塑料材料的改性（例如，高抗冲聚苯乙烯（例如， HIPS）]到轮胎的生产，特别是轮胎的胎面和/或侧壁的生产。

公开(公告)号：US20210198404A1

公开(公告)日：2021-07-01

申请号：US17058413

申请日：2019-05-29

Applicant: VERSALIS S.P.A.

Inventor： Costantino Perretta ,  Silvana Di Martino

IPC: C08F236/06 ,  C08F236/08 ,  C08F4/54 ,  C08F4/14 ,  C08F2/06 ,  C08K3/04 ,  C08K3/36

Abstract: Process for preparing a random butadiene-isoprene copolymer having a high content of cis-1,4 units comprising copolymerizing butadiene and isoprene, in the presence of at least one organic solvent, and a catalytic system prepared in situ comprising: (a1) at least one neodymium carboxylate soluble in said organic solvent, containing a variable amount of water, the H2O/Nd molar ratio being between 0.001/1 and 0.50/1; (a2) at least one aluminum alkyl compound; (a3) at least one aluminum alkyl compound containing at least one halogen atom. The random butadiene-isoprene copolymer having a high content of cis-1,4 units obtained from the abovementioned process may be advantageously used in a number of applications ranging from the modification of plastics [for example, obtainment of high impact polystyrene (HIPS)], to the production of tires, in particular the production of tire treads and/or of tire sidewalls.

公开(公告)号：US09822198B2

公开(公告)日：2017-11-21

申请号：US14388474

申请日：2013-04-24

Applicant: VERSALIS S.P.A.

Inventor： Andrea Vallieri ,  Marianna Zinna ,  Costantino Perretta

IPC: C08F136/06 ,  B60C1/00 ,  C08F36/06 ,  C08K3/04 ,  C08K3/36

CPC classification number: C08F136/06 ,  B60C1/00 ,  C08F36/06 ,  C08K3/04 ,  C08K3/36 ,  C08F4/545 ,  C08L9/00

Abstract: A process for the preparation of branched polybutadiene having a high content of 1,4-cis units which comprises polymerizing butadiene in the presence of at least one organic solvent, and in the presence of: a) a catalytic system prepared in situ including: (a1) at least one neodymium carboxylate, (a2) at least one alkyl compound of aluminum, (A3) at least one alkyl compound of aluminum containing at least one halogen atom, and b) at least one organic ester containing at least one halogen atom. Said branched polybutadiene having a high content of 1,4-cis units, depending on the branching degree and molecular weight distribution, can be advantageously used in various applications ranging from the modification of plastic materials [production, for example, of high impact polystyrene (HIPS)] to the production of tires, in particular the production of treads and/or of sidewalls of tires.

公开(公告)号：US20140249282A1

公开(公告)日：2014-09-04

申请号：US14356248

申请日：2012-11-23

Applicant: VERSALIS S.P.A.

Inventor： Andrea Vallieri ,  Costantino Perretta

IPC: C08F4/68

CPC classification number: C08F4/68 ,  C08F210/16 ,  C08F210/18

Abstract: A process for the preparation of an elastomeric polymer of ethylene which comprises polymerizing, in suspension, a mixture of monomers comprising ethylene, at least one a-olefin having from 3 to 12 carbon atoms, possibly at least one non-conjugated diene having from 4 to 20 carbon atoms, in the presence of a catalytic system comprising:—a suspension in oil of at least one catalyst selected from compounds containing vanadium;—-at least one co-catalyst, as such, selected from compounds containing aluminium; at least one activator, as such, selected from compounds containing chlorine.

Abstract translation: 一种制备乙烯弹性体聚合物的方法，其包括在悬浮液中聚合包含乙烯，至少一种具有3至12个碳原子的α-烯烃，或至少一种具有4个以上的非共轭二烯的单体的混合物 至少20个碳原子的催化体系，所述催化体系包含： - 至少一种选自包含钒的化合物的催化剂在油中的悬浮液; - 至少一种选自含铝化合物的助催化剂; 至少一种这样的活化剂选自含氯的化合物。