公开(公告)号：US09447273B2

公开(公告)日：2016-09-20

申请号：US14013073

申请日：2013-08-29

申请人： Versalis S.p.A.

发明人： Alessandro Casalini ,  Riccardo Felisari

IPC分类号： C08L53/02 ,  B29C44/34 ,  C08J9/16 ,  C08J9/00 ,  C08J9/14 ,  C08J9/224 ,  C08J9/232

CPC分类号： C08L53/02 ,  B29C44/3461 ,  C08J9/0014 ,  C08J9/0061 ,  C08J9/0066 ,  C08J9/0095 ,  C08J9/141 ,  C08J9/16 ,  C08J9/224 ,  C08J9/232 ,  C08J2201/024 ,  C08J2201/03 ,  C08J2201/036 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/052 ,  C08J2325/04 ,  C08J2453/02

摘要： A particulate polymeric composition capable of being processed to provide expanded articles having a density lower than or equal to 50 g/l and a closed cell content of at least 60% as specified by ASTM D-2856, wherein resulting particulates have a shape factor ranging from 0.6 to 0.99; and wherein the particulate polymeric composition is produced according to a process that prepares expandable granules based on thermoplastic polymers, through a granulation die.

摘要翻译： 能够被加工以提供密度低于或等于50g / l的膨胀制品并且根据ASTM D-2856规定的至少60％的闭孔含量的颗粒状聚合物组合物，其中所得颗粒的形状因子范围 从0.6到0.99; 并且其中所述颗粒状聚合物组合物根据通过造粒模具制备基于热塑性聚合物的可发泡颗粒的方法制备。

公开(公告)号：US11912840B2

公开(公告)日：2024-02-27

申请号：US16072383

申请日：2017-01-26

申请人： VERSALIS S.P.A.

发明人： Riccardo Felisari ,  Viviana Autieri

IPC分类号： C08J9/00 ,  C08J9/14 ,  C08K3/04 ,  C01B32/19 ,  C08F12/08 ,  C08F2/44 ,  C08F112/08 ,  B82Y30/00

CPC分类号： C08J9/0071 ,  C01B32/19 ,  C08F2/44 ,  C08F12/08 ,  C08F112/08 ,  C08J9/141 ,  C08K3/042 ,  B82Y30/00 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2325/04 ,  C08J2325/06 ,  C08K3/04 ,  C08L25/04 ,  C08F12/08 ,  C08F2/44 ,  C08K3/04 ,  C08K2201/011 ,  C08K2201/016

摘要： The present invention relates to a composition containing graphene and graphene nanoplatelets durably dispersed in a solvent. Said composition is characterized in that it contains at least 1% by weight, with respect to the total weight of the solvent, of a vinyl aromatic polymer and comprises a mass concentration of graphene and graphene nanoplatelets (GRS) ranging from 0.001% to 10% by weight with respect to the total weight of the solvent. The vinyl aromatic polymer present in the composition is obtained by partial or total polymerization of the relative vinyl aromatic monomer alone or mixed with up to 50% by weight of further copolymerizable monomers. The composition must satisfy the condition that the sum of the possible content of non-reacted monomers and the content of vinyl aromatic polymer formed is equal to at least 10% by weight with respect to the total weight of the solvent.

公开(公告)号：US10961365B2

公开(公告)日：2021-03-30

申请号：US15996683

申请日：2018-06-04

申请人： Versalis S.p.A.

发明人： Antonio Ponticiello ,  Dario Ghidoni ,  Riccardo Felisari

IPC分类号： C08J9/00

摘要： Expandable vinyl aromatic polymers comprising: a matrix obtained by polymerizing 50-100% by weight of one or more vinyl aromatic monomers and 0-50% by weight of at least one co-polymerizable monomer; 1-10% by weight, calculated with respect to polymer (a), of an expanding agent embedded in the polymeric matrix; 0-25% by weight, calculated with respect to polymer (a), of a filler comprising carbon coke having an average diameter of between 0.5 and 100 μm, with a surface area, measured according to ASTM D-3037/89, ranging from 5 to 200 m2/g; 0.05-10% by weight, calculated with respect to polymer (a), of expanded graphite in particle form, with a particle average diameter (size) ranging from 1 to 30 μm, a surface area, measured according to ASTM D-3037/89, ranging from 5 to 500 m2/g and a density ranging from 1.5 to 5 g/cm3.

公开(公告)号：US12030222B2

公开(公告)日：2024-07-09

申请号：US16958207

申请日：2018-12-21

申请人： VERSALIS S.P.A.

发明人： Riccardo Felisari ,  Sara Gavioli ,  Riccardo Inglese

IPC分类号： B29B9/06 ,  B29B9/12 ,  B29C48/00 ,  B29C48/04 ,  B29C48/08 ,  B29C48/25 ,  B29C48/92

CPC分类号： B29B9/065 ,  B29B9/12 ,  B29C48/0022 ,  B29C48/04 ,  B29C48/08 ,  B29C48/269 ,  B29C48/92

摘要： Circuit and to a process for managing transients and process and product anomalies in a plant for production of granulated expandable polymers EPS or extruded polymers XPS, said circuit being placed e.g. in a granulation plant along which are positioned:



a mixing device suitable for mixing additives and expanding agent within a stream of molten polymer;
a granulator or an extrusion device positioned downstream of said mixing device;
a deviation valve suitable for molten polymers placed along the line connecting said mixing device to said granulator or to said extrusion device upstream of said granulator or extruder, said deviation valve being provided with at least one inlet (A), a Stand-by position (A→C) and a Run position (A→B),

said circuit further comprising a heating device downstream of said valve, a separation device downstream of said heating device suitable for physically separating the blowing agent from the polymer and any additives present therein, and a cooling device positioned between said separation device and said mixing device.

公开(公告)号：US10183264B2

公开(公告)日：2019-01-22

申请号：US14390805

申请日：2013-04-03

申请人： Versalis S.P.A.

发明人： Riccardo Felisari ,  Alessandro Casalini ,  Olga Valentino

IPC分类号： B29C47/10 ,  B01F15/02 ,  C08J3/20 ,  B29C47/62 ,  B29C47/36

摘要： The present invention relates to a process for the insertion and conveying of a labile additive, or a mixture thereof, in a transporting pipe, in which a main stream of molten material flows, said process characterized in that it incorporates said additive, or said mixture, in a portion of the pipe delimited by the main stream, according to one of the following alternative modes: a) in a longitudinal direction with respect to the flow direction of the main stream of molten material, or b) in a transversal direction with respect to the flow direction of the main stream of. molten material, or c) according to a composition of the longitudinal (a) and transversal (b) mode, thus forming a resulting stream which keeps the labile additives segregated from the main stream of molten material.

公开(公告)号：US20150063054A1

公开(公告)日：2015-03-05

申请号：US14390805

申请日：2013-04-03

申请人： Versalis S.P.A.

发明人： Riccardo Felisari ,  Alessandro Casalini ,  Olga Valentino

IPC分类号： B01F15/02

CPC分类号： B01F15/0251 ,  B01F15/0254 ,  B01F2215/0049 ,  B29C47/1063 ,  B29C47/109 ,  B29C47/366 ,  B29C47/369 ,  B29C47/627 ,  C08J3/201 ,  C08J2325/06

摘要： The present invention relates to a process for the insertion and conveying of a labile additive, or a mixture thereof, in a transporting pipe, in which a main stream of molten material flows, said process characterized in that it incorporates said additive, or said mixture, in a portion of the pipe delimited by the main stream, according to one of the following alternative modes: a) in a longitudinal direction with respect to the flow direction of the main stream of molten material, or b) in a transversal direction with respect to the flow direction of the main stream of. molten material, or c) according to a composition of the longitudinal (a) and transversal (b) mode, thus forming a resulting stream which keeps the labile additives segregated from the main stream of molten material.

摘要翻译： 本发明涉及一种用于在输送管中插入和输送不稳定添加剂或其混合物的方法，其中熔融材料主流流动，所述方法的特征在于其包含所述添加剂或所述混合物 在由主流限定的管道的一部分中，根据以下替代模式之一：a）在相对于熔融材料主流流动方向的纵向方向上，或b）沿横向方向与 相对于主流的流动方向。 熔融材料，或c）根据纵向（a）和横向（b）模式的组成，从而形成所产生的流，其使不稳定的添加剂与熔融材料的主流分离。