公开(公告)号：US20180298192A1

公开(公告)日：2018-10-18

申请号：US15768258

申请日：2016-10-14

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Mani Raj Chaulagain ,  Roy Ray Odle

IPC: C08L81/06 ,  C08K5/3417 ,  C08K5/08 ,  C08K5/13

Abstract: A method of manufacture of a polyetherimide copolymer composition includes contacting a substituted phthalic anhydride and an organic diamine in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents at a temperature of greater than 130° C. to provide a bis(phthalimide) composition comprising diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents and a bis(phthalimide); and copolymerizing the bis(phthalimide), a substituted aromatic compound, and an alkali metal salt of a dihydroxy aromatic compound in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing to form a polyetherimide copolymer. The method does not require any catalyst either for the imidization or the polymerization.

公开(公告)号：US09777118B2

公开(公告)日：2017-10-03

申请号：US15304134

申请日：2015-04-15

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Mani Raj Chaulagain ,  Farid Fouad Khouri

IPC: C08G73/10 ,  C07C37/66 ,  C08K5/31

CPC classification number: C08G73/1071 ,  C07C37/66 ,  C08G73/10 ,  C08G73/1003 ,  C08K5/31 ,  C07C39/235

Abstract: A method for the manufacture of a metal salt of a hydroxy-substituted aromatic compound comprises: contacting a hydroxy-substituted aromatic compound with a base comprising a metal cation in molten diphenyl sulfone or sulfolane to provide a mixture comprising water, diphenyl sulfone or sulfolane, and a metal salt of the hydroxy-substituted aromatic compound; and removing water from the mixture in the absence of an azeotrope solvent to provide the metal salt of the hydroxy-substituted aromatic compound that contains less than 3,000 ppm of water.

公开(公告)号：US11130843B2

公开(公告)日：2021-09-28

申请号：US16564619

申请日：2019-09-09

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Mani Raj Chaulagain ,  Thomas Link Guggenheim ,  Roy Ray Odle

IPC: C08G73/10

Abstract: A method of manufacture of a polyetherimide composition includes contacting a substituted phthalic anhydride and an organic diamine in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents at a temperature of greater than 130° C. to provide a bis(phthalimide) composition comprising diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents and a bis(phthalimide); and polymerizing the bis(phthalimide) and an alkali metal salt of a dihydroxy aromatic compound in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing to form a polyetherimide. The method does not require any catalyst either for the imidization or the polymerization.

公开(公告)号：US10457778B2

公开(公告)日：2019-10-29

申请号：US15980180

申请日：2018-05-15

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Mani Raj Chaulagain ,  Thomas Link Guggenheim ,  Roy Ray Odle

IPC: C08G73/10

Abstract: A method of manufacture of a polyetherimide composition includes contacting a substituted phthalic anhydride and an organic diamine in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents at a temperature of greater than 130° C. to provide a bis(phthalimide) composition comprising diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents and a bis(phthalimide); and polymerizing the bis(phthalimide) and an alkali metal salt of a dihydroxy aromatic compound in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing to form a polyetherimide. The method does not require any catalyst either for the imidization or the polymerization.

公开(公告)号：US11279692B2

公开(公告)日：2022-03-22

申请号：US16065246

申请日：2016-12-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Thomas Link Guggenheim ,  Roy Ray Odle ,  Mani Raj Chaulagain

IPC: C07D403/12 ,  C07D209/48 ,  C08G73/10

Abstract: A method for producing an aromatic bisimide includes reacting a dialkali metal salt of a dihydroxy aromatic compound with an N-alkyl nitrophthalimide to form a product mixture including the aromatic bisimide. The N-alkyl nitrophthalimide includes 4-nitro-N—(C1-13 alkyl)phthalimide, 3-nitro-N—(C1-13 alkyl)phthalimide, or a combination including at least one of the foregoing, and 4-hydroxy-3,5-dinitro-N—(C1-13 alkyl)phthalimide in an amount of 1-10000 ppm. The aromatic bisimide can be obtained in a yield of greater than 75%, or 90-99.8%. A method for the manufacture of a polyetherimide, a polyetherimide, and an article including the polyetherimide are also disclosed. A mixed acid nitration process for the preparation of an N-alkyl nitrophthalimide is also described.

公开(公告)号：US20210206747A1

公开(公告)日：2021-07-08

申请号：US16065246

申请日：2016-12-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Thomas Link Guggenheim ,  Roy Ray Odle ,  Mani Raj Chaulagain

IPC: C07D403/12 ,  C07D209/48 ,  C08G73/10

Abstract: A method for producing an aromatic bisimide includes reacting a dialkali metal salt of a dihydroxy aromatic compound with an N-alkyl nitrophthalimide to form a product mixture including the aromatic bisimide. The N-alkyl nitrophthalimide includes 4-nitro-N—(C1-13 alkyl)phthalimide, 3-nitro-N—(C1-13 alkyl)phthalimide, or a combination including at least one of the foregoing, and 4-hydroxy-3,5-dinitro-N—(C1-13 alkyl)phthalimide in an amount of 1-10000 ppm. The aromatic bisimide can be obtained in a yield of greater than 75%, or 90-99.8%. A method for the manufacture of a polyetherimide, a polyetherimide, and an article including the polyetherimide are also disclosed. A mixed acid nitration process for the preparation of an N-alkyl nitrophthalimide is also described.