公开(公告)号：US20230373891A1

公开(公告)日：2023-11-23

申请号：US18031506

申请日：2020-10-13

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Jaiprakash Brijlal SAINANI ,  Kiran Arunkumar PUTHAMANE ,  Shirish Shrikant ABHYANKAR ,  Omkar GADGIL

IPC: C07C41/16 ,  C07C41/34 ,  C07C41/42

CPC classification number: C07C41/16 ,  C07C41/34 ,  C07C41/42

Abstract: The present invention relates to a process for the preparation of 2-isopentyl-2-isopropyl-1,3-dimethoxypropane, said process comprising the steps of: i) contacting iso-valderaldehyde with an aqueous solution of a hydroxide base selected from the group consisting of sodium hydroxide (NaOH), potassium hydroxide (KOH) or a combination thereof, said solution having an amount of said hydroxide base of at least 20% w/v, and (m)ethanol; to form (2Z)-2-isopropyl-5-methyl-2-hexenal; step ii) contacting (2Z)-2-iso-propyl-5-methyl-2-hexenal with a reducing system to form 2-isopropyl-5-methylhexanal; step iii) contacting 2-isopropyl-5-methylhexanal with formaldehyde and an inorganic base to form 2-isopentyl-2-isopropylpropane-1,3-diol; and step iv) contacting 2- isopentyl-2-isopropylpropane-1,3-diol with a methylation agent and a base to form 2-isopentyl-2-isopropyl-1,3-dimethoxypropane.

公开(公告)号：US20240067765A1

公开(公告)日：2024-02-29

申请号：US17766353

申请日：2020-09-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Martin Alexander ZUIDEVELD ,  Anika MEPPELDER ,  Dafne Lise STEINFORT ,  Kiran Arunkumar PUTHAMANE ,  Mudubagilu Udaya KUMAR

IPC: C08F4/649 ,  C08F4/02 ,  C08F4/659 ,  C08F110/06

CPC classification number: C08F4/6494 ,  C08F4/022 ,  C08F4/65912 ,  C08F4/65916 ,  C08F110/06

Abstract: A process for preparing a procatalyst for polymerization of olefins, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, and an internal electron donor according to Formula (I), said process comprising the steps of: i) contacting a compound R4zMgX42-z with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, being a solid Mg(OR1)xX12-x, ii) optionally contacting the solid Mg(OR1)xX12-x obtained in step ii) with at least one activating compound selected from the group formed by activating electron donors and metal alkoxide compounds of formula M1(OR2)v-w(OR3)w or M2(OR2)v-w(R3)w, to obtain a second intermediate product; iii) contacting the first or second intermediate reaction product, obtained respectively in step i) or ii), with a halogen-containing Ti-compound and said compound represented Formula (I), as the internal electron donor.