Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1978-10-30
1981-01-13
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528170, 528274, 528275, 528279, 528281, 528284, 528285, 528289, 528312, 528315, 528319, 528322, C08G 7316
Patent
active
042450861
ABSTRACT:
N-Hydroxyalkyltrimellitic acid imides of high purity are prepared by reacting trimellitic acid anhydride with a monoalkanolamine in an aqueous medium comprising an amount of not less than about 0.025 liter of a certain specific solvent or solvent mixture per 1 mole of the trimellitic acid anhydride and can be advantageously used for production of their polymers having a high thermal stability and a good color tone.
REFERENCES:
patent: 3060191 (1962-10-01), Kolb et al.
patent: 3458480 (1969-07-01), Schmidt et al.
patent: 3562219 (1971-02-01), Schmidt et al.
patent: 3567685 (1971-03-01), Bialous et al.
patent: 3697471 (1972-10-01), Schmidt et al.
patent: 3880812 (1975-04-01), Golinkin et al.
patent: 3944706 (1976-03-01), Czajka
Miyagawa Takahito
Uno Keiichi
Lee Lester L.
Toyo Boseki Kabushiki Kaisha
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