1
Takekoshi Tohru, Kochanowski John E: Method for making polyetherimides and products produced thereby. General Electric Company, Teoli William A, Cohen Joseph T, Squillaro Jerome C, September 16, 1975: US3905942 (86 worldwide citation)

A method is provided for making polyetherimides involving the reaction of aromatic bis(etherdicarboxylic) acids and organic diamines in the presence of a non-polar organic solvent, or phenolic solvent, at temperatures of at least 130.degree.C. The polyetherimides are useful as injection molding comp ...


2
Heath Darrell R, Takekoshi Tohru: Method for making aromatic bis(ether anhydride)s. General Electric Company, Teoli William A, Cohen Joseph T, Squillaro Jerome C, April 22, 1975: US3879428 (50 worldwide citation)

Aromatic bis(ether anhydride)s can be made by a nitro displacement of an N-substituted nitrophthalimide with an alkali (diphenoxide to produce an intermediate aromatic bis(etherphthalimide). Hydrolysis of the aromatic bis(etherphthalimide) to the corresponding tetra-acid salt followed by acidificati ...


3
Brunelle Daniel Joseph, Takekoshi Tohru: Process for preparing macrocyclic polyester oligomers. Gen Electric, March 6, 1996: EP0699701-A2 (28 worldwide citation)

Prodn of macrocyclic polyester oligomers is effected by heating a mixt of linear polyester polymers or oligomers, org solvents and Sn catalysts, the linear polyester starting material pref having units of formula (I): m= 2-10 (esp 2-4); n= 20-500 (esp 50-300); and A= mono- or poly-cyclic divalent ar ...


4
Takekoshi Tohru, Pearce Eric Jon: Trisstannoxanes. Gen Electric, December 27, 1995: EP0688778-A1 (28 worldwide citation)

Tris-stannoxanes of formula (I) are new: R2 = 1-4C primary alkyl; R3 = 1-10C alkyl.


5
Takekoshi Tohru, Kochanowski John E: Method for making polyetherimides and products produced thereby. General Electric Company, Teoli William A, Cohen Joseph T, Squillaro Jerome C, November 4, 1975: US3917643 (12 worldwide citation)

A method is provided for making polyetherimides involving the reaction of aromatic bis(ether anhydride)s and organic diamines in the presence of a phenolic solvent. The resulting polyetherimide-phenolic solvent mixture can be employed as a wire coating enamel.


6
Takekoshi Tohru Nmn, Caruso Andrew James, Terry Jane Marie, Iwanowicz Edwin Jan: Reactively capped polyarylene sulfides and method and intermediates for their preparation.. Gen Electric, January 2, 1991: EP0405135-A1 (12 worldwide citation)

Polyarylene sulfides react with disulfides containing reactive functional groups, typically at temperatures within the range of about 225-375 DEG C, yielding reactively capped polyarylene sulfides. The preferred reactive functional groups are amino groups and carboxy groups and functional derivative ...


7
Verhoogt Hendrik, Moor Johannes Jacob de, Khouri Farid Fouad, Takekoshi Tohru: Flame retardant polyester composition. Gen Electric, March 3, 1999: EP0899301-A1 (12 worldwide citation)

A non-halogen flame retarded resin molding composition comprises a polyester resin and a flame retarding combination of materials comprising at least one polymeric siloxane composition, a boron and phosphorus containing material, and an organoclay.


8
Takekoshi Tohru, Bahr Steven R, Winckler Steven J: Intimate physical mixtures containing macrocyclic polyester oligomer and filler. Cyclics Corporation, Takekoshi Tohru, Bahr Steven R, Winckler Steven J, HAULBROOK William R, December 22, 2005: WO/2005/121233 (10 worldwide citation)

The invention provides intimate physical mixtures of macrocyclic polyester oligomer (MPO) and filler, as well as methods for their preparation and use. Improved dispersion of filler in a polymer matrix is achieved upon polymerization, and larger amounts of filler with high aspect ratio can be used. ...


9
Takekoshi Tohru: Method for preparing N-substituted nitrophthalimides. General Electric Company, Teoli William A, Cohen Joseph T, Squillaro Jerome C, November 18, 1975: US3920697 (6 worldwide citation)

Bis(nitrophthalimide)s can be prepared by effecting reaction in a phenolic solvent between an organic diamine and a nitro-substituted phthalimide or a nitro-substituted phthalic acid. The bis(nitrophthalimide)s can be employed as intermediates for making polyetherimides by a nitro displacement react ...


10
Takekoshi Tohru, Anderson Patricia Pike: Crystalline polyimides containing cumulative phenylene sulfide units.. Gen Electric, March 11, 1987: EP0213573-A2 (5 worldwide citation)

Crystalline polyimides having low glass transition temperatures and high solvent resistance are obtained by reacting diamino-oligo-phenylene sulfides with aromatic tetracarboxylic acids or their anhydride derivatives. The diamino-oligo-phenylene sulfides can be of varying length and can be reacted w ...