Sabic Global Technologies B.v.

Sabic Innovative Plastics IP B.v.

Shpp Global Technologies B.v.

Matthew L Kuhlman

Roy Ray Odle

Thomas Link Guggenheim

Eric James Pressman

Gurulingamurthy M Haralur

Farid Fouad Khouri

Brennan Alexander Smith

Peter Johnson

Narayan Ramesh

Lioba Maria Kloppenburg

Dadasaheb V Patil

Hendrich Chiong

Harpreet Singh

Miguel Angel Navarro De Castro

Bernabe Beatriz Penalver

A method of making polyetherimide comprising reacting a first diamine having four bonds between the amine groups, a second diamine having greater than or equal to five bonds between the amine groups, 4-halophthalic anhydride and 3-halophthalic in the presence of a solvent and a polymer additive to produce a mixture comprising 3,3'-bis(halophthalimide)s, 3,4&#x2032;-bis(halophthalimide)s, 4,4&#x2032;-bis(halophthalimide)s, solvent and the polymer additive wherein the molar ratio of 3-halophthalic anhydride to 4-halophthalic anhydride is 98:02 to 50:50 and the molar ratio of the first diamine to the second diamine is 98:02 to 02:98; and reacting the mixture with an alkali metal salt of a dihydroxy aromatic compound to produce a polyetherimide having a cyclics content less than or equal to 5 weight percent, based on the total weight of the polyetherimide, wherein the polymer additive dissolves in the solvent at the imidization reaction temperature and pressure.

Methods of manufacture for polyetherimide

A polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, from more than 45 to less than 75 weight percent of a 3,3'-bis(halophthalimide), less than 10 weight percent of a 3,4&#x2032;-bis(halophthalimide), and from more than 45 to less than 75 weight percent of a (4,4&#x2032;-bis(halophthalimide.

Polyetherimides, methods of manufacture, and articles formed therefrom

A polyetherimide composition comprising a polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, at least 15 wt. % of a 3,3'-bis(halophthalimide) of the formula from more than 17 wt. % to less than 85 wt. % of a 4,3&#x2032;-bis(halophthalimide) of the formula andfrom more than 0 to less than 27 wt. % of a 4,4&#x2032;-bis(halophthalimide) of the formula 

A polyetherimide composition comprising a polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition,   

A polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound of the formulaMO&#x2014;Z&#x2014;OMwherein M is an alkali metal salt and Z is an aromatic Cmonocyclic or polycyclic moiety optionally substituted with 1 to 6 Calkyl groups, 1 to 8 halogen atoms, or a combination thereof,   

A polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound of the formulaMO&#x2014;Z&#x2014;OMwherein M is an alkali metal salt and Z is an aromatic Cmonocyclic or polycyclic moiety optionally substituted with 1 to 6 Calkyl groups, 1 to 8 halogen atoms, or a combination thereof,  and 

A polyetherimide having an OH content that is greater than 0 and equal or less than 100 ppm; a Relative Thermal Index that is greater than or equal to 170&#xb0; C.; and a chlorine content that is greater than 0 ppm is disclosed herein. A method for preparing the polyetherimide is also disclosed.

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Evansville, IN, United States of America

Matthew L Kuhlman