公开(公告)号：US10066044B2

公开(公告)日：2018-09-04

申请号：US15032207

申请日：2014-11-03

申请人： versalis S.p.A.

发明人： Francesco Masi ,  Anna Sommazzi ,  Giovanni Ricci ,  Giuseppe Leone ,  Salvatore Coppola

IPC分类号： C08F295/00 ,  C08F4/70

摘要： Stereoregular diblock polybutadiene composed of a polybutadiene block having a 1,4-cis structure and a polybutadiene block having a syndiotactic 1,2 structure. Said stereoregular diblock polybutadiene can be advantageously used in both the footwear industry (for example, in the production of soles for shoes) and in the production of tires for motor vehicles and/or trucks.

公开(公告)号：US20150308624A1

公开(公告)日：2015-10-29

申请号：US14650675

申请日：2013-12-23

申请人： ENI S.P.A. ,  VERSALIS S.P.A.

发明人： Chiara Piseri ,  Lucilla Del Gaudio ,  Alessandro Casalini ,  Salvatore Coppola ,  Davide Malinverno ,  Romano Lima

IPC分类号： F17D1/17

CPC分类号： F17D1/17 ,  F17D1/16 ,  F17D1/20 ,  F17D3/01 ,  F17D3/12

摘要： Method for reducing the pressure drop associated with a fluid subjected to a turbulent flow which comprises introducing at least one latex into said fluid, comprising: (a) a continuous aqueous phase; (b) a plurality of particles, dispersed in said continuous aqueous phase, of at least one branched (co) polymer having a branching degree {GR) ranging from 0.05 to 0.6, preferably from 0.08 to 0.5, and a weight average molecular weight (Mw) of the parent (co) polymer ranging from 100,000 Daltons to 700,000 Daltons, preferably ranging from 140,000 Daltons to 350,000 Daltons. Said method can be advantageously used in the case of a pressure drop in pipelines transporting liquid hydrocarbons such as, for example, petroleum, crude oils and refinery or petrochemical products, in particular for long distances.

摘要翻译： 一种减少与经受湍流的流体相关的压降的方法，包括将至少一种胶乳引入所述流体中，包括：（a）连续的水相; （b）分散在所述连续水相中的至少一种支化度（GR）为0.05至0.6，优选0.08至0.5的分支（共）聚合物的多个颗粒和重均分子量（ 母体（共）聚合物的范围为100,000道尔顿至700,000道尔顿，优选范围为140,000道尔顿至350,000道尔顿。 所述方法可以有利地用于输送液体烃如石油，原油和炼油或石化产品的管道中的压力降，特别是长距离运输。