Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1997-09-05
1999-08-17
Hampton-Hightower, P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528328, 528373, 525418, 525420, C08G 7310
Patent
active
059395222
ABSTRACT:
A method for the preparation of a desired molecular weight polysuccinimide by the catalytic polymerization of aspartic acid in the presence of a thioether solvent. Polysuccinimide of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading and relatively low temperatures.
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Kakuchi T., et al., Synthesis and Characterization of Poly(succinimide-co-6-aminocaproic acid) by Acid-Catalyzed Polycondensation of L-Aspartic Acid and 6-Aminocaproic Acid, Journal of Polymer Science: Part A: Polymer Chemistry, 35, 285-289 (1997).
Nakato T., et al., Novel Synthetic Method for High Molecular Weight Poly(succinimide) by Acid-catalyzed Polycondensation of L-Aspartic Acid, Polymer Preprints, 37(1), 555-556, Div. of Polymer Chemistry, ACS (1996).
Tomida M., et al., Novel method of synthesizing poly(succinimide) and its copolymeric derivatives by acid-catalyzed polycondensation of L-aspartic acid, Polymer, 37(19), 4435-4437 (1996).
Kakuchi T, et al., Synthesis and Characterization of Poly(succinimide-co-6-aminocaproic acid) by Acid-Catalyzed Polycondensation of L-Aspartic Acid and 6-Aminocaproic Acid, Polymer Preprints, 37(1), 561-562, Div. of Polymer Chemistry, ACS (1996).
Mazo Grigory Ya.
Mazo Jacob
Ross Robert J.
Vallino Barney
Donlar Corporation
Hampton-Hightower P.
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