公开(公告)号：US11591456B2

公开(公告)日：2023-02-28

申请号：US17047584

申请日：2019-04-24

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Anantharaman Dhanabalan ,  Maria Soliman ,  Anirban Ganguly ,  Sangita Nandi ,  Prem Prakash Pathak ,  Kummetha Raghunatha Reddy ,  Abderrahman Meddad ,  Sadasivam Gopalakrishnan

IPC: C08L23/06 ,  C08L23/20 ,  C08L25/08 ,  C08L53/02

Abstract: Polymer blends, methods of making the polymer blends, and articles of manufacture that include the polymer blends are described. A polymer blend can include a high density polyethylene (HDPE) polymer and a random block copolymer. The random block copolymer can include two different saturated alkane blocks between aromatic blocks (e.g., two styrenic blocks).

公开(公告)号：US10961377B2

公开(公告)日：2021-03-30

申请号：US16617232

申请日：2018-05-25

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sangita Nandi ,  Rukmini Khatokar ,  Anirban Ganguly ,  Debasish Banerjee ,  Susanta Mitra ,  Stephen D. Pask

IPC: C08L23/16

Abstract: The present invention relates to a process for the production of an ethylene-propylene-diene terpolymer (EPDM) composition in a reaction vessel comprising the following steps in this order: (a) supplying a quantity of a first composition comprising an ethylene copolymer or a propylene copolymer and a first peroxide to the reaction vessel; (b) supplying a quantity of a second composition comprising EPDM and a second peroxide to the reaction vessel; or (a) supplying a quantity of a second composition comprising EPDM and a second peroxide to the reaction vessel; (b) supplying a quantity of a first composition comprising an ethylene copolymer or a propylene copolymer and a first peroxide to the reaction vessel; and (c) exposing the contents of the reaction vessel under stirring to a temperature of 100-200° C.; wherein the ethylene copolymer is a copolymer comprising polymeric units derived from ethylene and polymeric units derived from a mono-olefinic compound comprising 3 to 10 carbon atoms, and wherein the propylene copolymer is a copolymer comprising polymeric units derived from propylene and polymeric units derived from a mono-olefinic compound comprising 2 carbon atoms or 4-10 carbon atoms. Such process allows for the production of an oil-extended EPDM composition having a certain high Mooney viscosity whilst still using an EPDM as obtained from the polymerisation process having a relatively moderate Mooney viscosity.

公开(公告)号：US10131782B2

公开(公告)日：2018-11-20

申请号：US15505421

申请日：2015-09-03

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sangita Nandi ,  Susanta Mitra ,  Jelena Bozovic-Vukic ,  Abdulsattar Dawood

IPC: C08K7/14 ,  C08K3/40 ,  C08L59/02 ,  C08L59/04 ,  C08L33/12 ,  C08K5/00 ,  C08L33/00 ,  C08L51/04

Abstract: Reinforced polyoxymethylene compositions including 50 to 90 wt. % of a polyoxymethylene; 10 to 50 wt. % of glass fibers, wherein the weight of the polyoxymethylene and the glass fibers total 100 wt. %; 1 to less than 4.0 wt. % of a (meth)acrylic polymer additive, based on the total weight of the polyoxymethylene and the glass fibers; 0.1 to 5 wt. %, preferably 0.1 to 2.5 wt. % of a heat stabilizer; and 0.1 to 5 wt. % of an antioxidant, wherein the amounts of the (meth)acrylic polymer additive, the heat stabilizer, and the antioxidant are based on the total weight of the polyoxymethylene and the glass fibers.

公开(公告)号：US20200148870A1

公开(公告)日：2020-05-14

申请号：US16617232

申请日：2018-05-25

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sangita Nandi ,  Rukmini Khatokar ,  Anirban Ganguly ,  Debasish Banerjee ,  Susanta Mitra ,  Stephen D. Pask

IPC: C08L23/16

Abstract: The present invention relates to a process for the production of an ethylene-propylene-diene terpolymer (EPDM) composition in a reaction vessel comprising the following steps in this order: (a) supplying a quantity of a first composition comprising an ethylene copolymer or a propylene copolymer and a first peroxide to the reaction vessel; (b) supplying a quantity of a second composition comprising EPDM and a second peroxide to the reaction vessel; or (a) supplying a quantity of a second composition comprising EPDM and a second peroxide to the reaction vessel; (b) supplying a quantity of a first composition comprising an ethylene copolymer or a propylene copolymer and a first peroxide to the reaction vessel; and (c) exposing the contents of the reaction vessel under stirring to a temperature of 100-200° C.; wherein the ethylene copolymer is a copolymer comprising polymeric units derived from ethylene and polymeric units derived from a mono-olefinic compound comprising 3 to 10 carbon atoms, and wherein the propylene copolymer is a copolymer comprising polymeric units derived from propylene and polymeric units derived from a mono-olefinic compound comprising 2 carbon atoms or 4-10 carbon atoms. Such process allows for the production of an oil-extended EPDM composition having a certain high Mooney viscosity whilst still using an EPDM as obtained from the polymerisation process having a relatively moderate Mooney viscosity.