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公开(公告)号：US20170240662A1
公开(公告)日：2017-08-24
申请号：US15121092
申请日：2015-03-05
Applicant: Shaneesh VADAKE KULANGARA , Nicolaas Hendrika FRIEDERICHS , SAUDI BASIC INDUSTRIES CORPORATION , SABIC GLOBAL TECHNOLOGIES B.V.
IPC: C08F10/02
CPC classification number: C08F10/02 , C07F17/00 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F4/65927 , C08F210/16 , C08F110/02 , C08F2500/12 , C08F210/14 , C08F2500/10 , C08F2/14
Abstract: A process for the preparation of ethylene α-olefin copolymers by copolymerizing ethylene with α-olefins in the presence of a catalyst formed by contacting a metallocene complex with a cocatalyst, wherein the metallocene complex is a metallocene complex according to formula I or a metallocene complex according to formula II, wherein M is chosen from the group of Ti, Zr and Hf; Q is halogen (F, Cl, Br, I) or an alkyl group comprising 1 to 20 carbon atoms; k is the number of Q groups, is an integer and equals the valence of M minus 2; and wherein R1, R2, R3 and R4 are identical or different and can be chosen from alkyl groups with 1-20 carbon atoms.
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公开(公告)号：US20210388189A1
公开(公告)日：2021-12-16
申请号：US17291037
申请日：2019-11-04
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Anantharaman DHANABALAN , Shaneesh VADAKE KULANGARA , Maria SOLIMAN , Radha KAMALAKARAN , Anshita SUDARSHAN , Sadasivam GOPALAKRISHNAN , Anirban GANGULY
IPC: C08L23/06 , C08G77/448 , C08L83/10
Abstract: A polyethylene composition having increased environmental stress crack resistance comprises a polymer blend of a multimodal high density polyethylene (HDPE) and an additive of at least one of a polycarbonate-siloxane copolymer, a polyethylene glycol (PEG) having an average molecular weight (Mw) of at least 2000, and a random block copolymer comprising two different saturated alkane blocks between two aromatic hydrocarbon blocks. The additive is present in the polymer blend in an amount of from 1 wt. % or less by weight of the polymer blend.
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公开(公告)号：US20230085145A1
公开(公告)日：2023-03-16
申请号：US17919807
申请日：2021-05-10
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Thomas LANGSTRAAT , Priya GARG , Shaneesh VADAKE KULANGARA , Jens PANITZKY
Abstract: The present invention relates to an ultra-high molecular weight polyethylene (UHMWPE) powder having a BET specific surface area of ≥0.50 m2/g as determined in accordance with ISO 9277 (2010). Such UHMWPE powder allows for preparation of a gel solution comprising the powder to a desired swelling ratio at moderate temperatures within a reduced swelling period.
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公开(公告)号：US20180148522A1
公开(公告)日：2018-05-31
申请号：US15579621
申请日：2016-05-24
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Shaneesh VADAKE KULANGARA , Nicolaas Hendrika FRIEDERICHS , Anton GINZBURG , Luca RONGO , Alexander Z. VOSKOBOYNIKOV , Vyatcheslav V. IZMER , Dmitry S. KONONOVICH , Oleg SAMSONOV , Abbas-Alli Ghudubhai SHAIKH , Vincenzo BUSICO , Roberta CIPULLO , Ilya BORISOV , Anamitra CHATTERJEE , Dmitry UBORSKY
CPC classification number: C08F10/02 , C07F17/00 , C08F4/65912 , C08F4/65916 , C08F4/6592 , C08F10/00 , C08F210/16 , C08F2410/02 , C08F110/02 , C08F2500/03 , C08F2500/12 , C08F2500/07 , C08F4/65927 , C08F210/14 , C08F2500/10
Abstract: The invention relates to a metallocene complex according to formula I wherein M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups and equals the valence of M minus 2, R is a bridging group containing at least one carbon atom bonded to the indenyl moiety at 2-position, R1, R2, R3 and R4 are each independently chosen from the group consisting of H, a halogen atom and a C1-C20 hydrocarbylgroup, and wherein at least one of R1 and R2 is not H, and at least one of R3 and R4 is not H. The invention also relates to a catalyst comprising the metallocene complex, to a process for making polyolefins and to the use of the polyolefins for making articles.
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