公开(公告)号：US20160272738A1

公开(公告)日：2016-09-22

申请号：US15029871

申请日：2014-10-24

Applicant: DSM IP ASSETS B.V.

Inventor： John Richard SEVERN ,  Romain BERTHOUD ,  Timothy James KIDD

IPC: C08F110/02

CPC classification number: C08F110/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/02 ,  C08F2420/03 ,  C08F2420/04 ,  C08F4/6592 ,  C08F2500/01 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24

Abstract: The invention relates to a process for the preparation of a particulate ultra high molecular weight polyethylene (UHMWPE), comprising the steps of preparing a magnesium containing carrier, loading the carrier with a organometallic compound forming a supported catalyst and contacting the supported catalyst with at least ethylene under polymerization conditions, wherein the organometallic compound is of the formula R33P═N—TiCpXn.

Abstract translation: 本发明涉及一种制备颗粒状超高分子量聚乙烯（UHMWPE）的方法，包括以下步骤：制备含镁载体，用形成负载型催化剂的有机金属化合物负载载体，并将负载型催化剂与至少 乙烯在聚合条件下，其中有机金属化合物具有式R 33 P = N-TiC p X n。

公开(公告)号：US20180355515A1

公开(公告)日：2018-12-13

申请号：US15781789

申请日：2016-12-12

Applicant: DSM IP Assets B.V.

Inventor： Tom Antonius Philomena ENGELS ,  Gert DE CREMER ,  Romain BERTHOUD ,  Roman STEPANYAN ,  Peter ROOZEMOND ,  Filip Stefan Emiel OOSTERLINCK ,  John Richard SEVERN

IPC: D01F6/04 ,  D01F6/46 ,  D01F6/30 ,  D01D5/06 ,  C08F10/02

Abstract: The invention relates to a process for the preparation of a gel spun UHMWPE fiber comprising the steps of providing an ultra high molecular weight polyethylene composition having an intrinsic viscosity (IV) of at least 8 dl/g, a co-monomer content (CBR) of a least 0.05 SCB/1000TC, a mass averaged distribution of the co-monomer (CMAD) of at least 0.05, wherein the co-monomer has at least 4 carbon atoms, dissolving the composition in a solvent to form a polymer solution having a UHMWPE concentration of between 2 and 40 wt %, spinning the polymer solution through a multi orifice die plate to form a solution fibers, cooling the solution fiber to below 80° C. to form a gel fiber, drawing the fiber in at least one step to form a drawn fiber, removing at least a portion of the solvent before, during or after the drawing, wherein the ratio CMAD to CBR is greater than 1.0. The invention further relates to a gel-spun UHMWPE fiber obtainable by the process and products comprising said gel-spun UHMWPE fiber.

公开(公告)号：US20160229932A1

公开(公告)日：2016-08-11

申请号：US15029894

申请日：2014-10-24

Applicant: DSM IP ASSETS B.V.

Inventor： John Richard SEVERN ,  Romain BERTHOUD ,  Timothy James KIDD

IPC: C08F110/02

CPC classification number: C08F110/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/02 ,  C08F2420/04 ,  C08F4/6592 ,  C08F210/16 ,  C08F210/06 ,  C08F2500/01 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24

Abstract: The invention relates to a process for the preparation of a particulate ultra high molecular weight polyethylene (pUHMWPE copolymer, comprising the steps of preparing a magnesium containing carrier, loading the carrier with a organometallic compound forming a supported catalyst and contacting the supported catalyst with ethylene and at least one olefinic co-monomer under polymerization conditions, wherein the organometallic compound is of the formula R33P═N—TiCpXn.

Abstract translation: 本发明涉及一种制备颗粒状超高分子量聚乙烯（pUHMWPE共聚物）的方法，包括以下步骤：制备含镁载体，用形成负载型催化剂的有机金属化合物负载载体并使负载型催化剂与乙烯和 至少一种烯属共聚单体，其中所述有机金属化合物具有式R 33 P = N-TiC p X n。

公开(公告)号：US20170362355A1

公开(公告)日：2017-12-21

申请号：US15691669

申请日：2017-08-30

Applicant: DSM IP ASSETS B.V.

Inventor： John Richard SEVERN ,  Romain BERTHOUD ,  Timothy James KIDD

IPC: C08F110/02 ,  C08F10/02 ,  C08F4/659

CPC classification number: C08F110/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/02 ,  C08F2420/03 ,  C08F2420/04 ,  C08F4/6592 ,  C08F2500/01 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24

Abstract: Particulate ultra high molecular weight polyethylene (pUHMWPE) are disclosed having an intrinsic viscosity (IV) of at least 4 dl/g, a molecular weight distribution Mw/Mn of less than 4.0, a median particle size D50 of between 50 and 200 μm, a residual Ti-content of less than 10 ppm, a residual Si-content of less than 50 ppm, and a total ash content of less than 1000 ppm.