公开(公告)号：US20170145128A1

公开(公告)日：2017-05-25

申请号：US15320040

申请日：2015-06-16

Applicant: SABIC Global Technologies B.V.

Inventor： Hesham A. Al-Shobilly ,  Ahmad Abdullah Alshaiban ,  Abdulrahman Albeladi ,  Abderrahman Meddad ,  Riyadh A. Al Humoud

IPC: C08F210/06

CPC classification number: C08F210/06 ,  C08F4/6565 ,  C08F4/651 ,  C08F210/16 ,  C08F2500/01 ,  C08F2500/12 ,  C08F2500/24 ,  C08F2500/18

Abstract: The invention relates to a process for the preparation of ethylene-propylene copolymers having —a weight average molecular weight of 800,000-1,800,000, —a molecular weight distribution of 3-8, —an ethylene content of 1-10 wt %, preferably 1.5 to 5.5 wt %. —a melt flow in the range of 1.5-8 dg/min measured with a load of 21.6 kg at 230° C. and —a xylene soluble content of 2-15 wt % by converting propylene into the UHMWEP copolymer without pre-polymerization in the presence of a polymerization catalyst under a condition where the volume ratio of H2 to propylene is at most 0.0020, wherein the catalyst comprises a catalyst component and a co-catalyst, wherein the catalyst component is obtained by a process wherein a compound with formula Mg(OAIk)xCly wherein x is larger than 0 and smaller than 2, y equals 2−x and each Alk, independently, represents an alkyl group, is contacted with a titanium tetraalkoxide and/or an alcohol in the presence of an inert dispersant to give an intermediate reaction product and wherein the intermediate reaction product is contacted with titanium tetrachloride in the presence of an internal donor.

公开(公告)号：US11384173B2

公开(公告)日：2022-07-12

申请号：US17437541

申请日：2020-03-18

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Ali Abdulwahab Bakhite-Al ,  Abderrahman Meddad

IPC: C08F8/50 ,  C08K5/098 ,  C08K5/14 ,  C08K5/3492 ,  C08K5/526 ,  C08K9/12 ,  C07C409/16

Abstract: The invention relates to a composition obtained by the adsorption of a liquid peroxide onto granules comprising an antioxidant and an acid scavenger, for example wherein the adsorption of the liquid peroxide onto the granules is performed by a process which can be performed at room temperature (23° C.) and the process does not require heating.

公开(公告)号：US20220089792A1

公开(公告)日：2022-03-24

申请号：US17437541

申请日：2020-03-18

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Ali Abdulwahab Bakhite-Al ,  Abderrahman Meddad

IPC: C08F8/50 ,  C07C409/16 ,  C08K5/098 ,  C08K5/14 ,  C08K5/3492 ,  C08K5/526 ,  C08K9/12

Abstract: The invention relates to a composition obtained by the adsorption of a liquid peroxide onto granules comprising an antioxidant and an acid scavenger, for example wherein the adsorption of the liquid peroxide onto the granules is performed by a process which can be performed at room temperature (23° C.) and the process does not require heating.

公开(公告)号：US20190276567A1

公开(公告)日：2019-09-12

申请号：US16340918

申请日：2017-10-16

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Patrick Elisabeth Luc Voets ,  Abderrahman Meddad ,  Henrica Norberta Alberta Maria Steenbakkers-Menting ,  Akhlaq Moman

IPC: C08F10/06 ,  C08J5/18 ,  B29C55/00 ,  B29C55/12

Abstract: The invention relates to a biaxially oriented polypropylene (BOPP) film comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most 1.0 wt % based on the propylene-ethylene copolymer having an Mw/Mn in the range from 5.0 to 12, wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight and wherein Mw and Mn are measured according to ASTM D6474-12, an XS in the range from 1.0 to 6.0 wt %, wherein XS stands for the amount of xylene solubles which are measured according to ASTM D 5492-10, a melt flow rate in the range of 1 to 10 dg/min as measured according to IS01133 (2.16 kg/230° C.) and a crystal size distribution as indicated by a height/width ratio of the highest peak of the first cooling curve of at least 0.70 W/g° C. as determined by ASTM D3418-08 using a heating and cooling rate of 10° C./min.