Title:
高分子量ランダムポリヒドロキシポリアミドの製造法
Document Type and Number:
Japanese Patent JP2006509092
Kind Code:
A
Abstract:
High molecular weight random polyhydroxypolyamides (PHPAs) are produced by creating prepolymers which are further polymerized. Random prepolymers are formed from a stoichiometrically molar balance (1:1) starting material. The starting material is a 1:1 stoichiometrically balanced esterified aldaric acid:alkylene or alkylene derived diammonium salt. Alternatively, the starting material is an esterified stoichiometrically balanced diacid:diamine salt and a N'-ammoniumalkyl (or alkyl derived)-D-aldaramic acid terminal carboxylate zwitterionic salt mixture. The starting materials are polymerized in a basic alcohol using a second amine. The polymerized material, or the random prepolymers, are isolated and then further polymerized in a solvent, typically a mixed solvent of an alcohol and non-alcohol, to obtain the high molecular weight PHPAs.
Inventors:
Keeley Donald E.
Clammer kylie
Chang Jin Sung
Clammer kylie
Chang Jin Sung
Application Number:
JP2004558209A
Publication Date:
March 16, 2006
Filing Date:
December 10, 2003
Export Citation:
Assignee:
The University of Montana
International Classes:
C08G69/28; C08G63/685; C08G69/26
Attorney, Agent or Firm:
Hatsushi Shimizu
Koichi Niimi
Koichi Niimi