General Electric Company

Havva Acar

Daniel Joseph Brunelle

Farid Fouad Khouri

William David Richards

Peter John Bonitatebus, Jr

Michael Larsen

Disclosed herein are polyetherimide compositions comprising structural units of the formula: derived from at least one benzimidazole diamine, wherein Rand Rare independently selected from hydrogen and C&#x2013;Calkyl groups; 'A' comprises structural units of the formulae: or mixtures of the foregoing structural units; wherein 'D' is a divalent aromatic group, Rand R&#x2013;Rare independently selected from hydrogen, halogen, and C&#x2013;Calkyl groups; &#x201c;q&#x201d; is an integer having a value of 1 up to the number of positions available on the aromatic ring for substitution; and &#x201c;W&#x201d; is a linking group; and &#x201c;B&#x201d; comprises substituted and unsubstituted arylene groups having from about 6 to about 25 carbon atoms. Methods for producing the polyetherimide compositions are also disclosed herein.

Benzimidazole diamine-based polyetherimide compositions and methods for making them

Copolyetherimides comprise phthalimide structural units comprising both 3- and 4-linkages, wherein the designations 3-linkage and 4-linkage refer to the isomeric positions on the phthalimide ring in the totality of phthalimide-comprising structural units in the copolymer. The products have excellent properties, including high glass transition and heat distortion temperatures, high ductility and good melt flow properties, and low polydispersity.

Copolyetherimides

A nanoparticle comprising an inorganic core and a polymerizable outer coating. The inorganic core comprises a substantially crystalline inorganic material such as a superparamagnetic material. In one embodiment, the inorganic core comprises a single crystal mixed spinel ferrite comprising iron in a first oxidation state and at least one metal in a second oxidation state, wherein the second oxidation state is different from the first oxidation state.

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Clifton Park, NY, United States of America

Havva Acar