Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1998-10-01
2000-08-22
Hampton-Hightower, P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, 528220, 528229, 528272, 528288, 528292, 528310, 528312, 528317, 528322, 528331, 528335, 528336, 528339, C08G 7310, C08G 6926, C08G63444
Patent
active
061074381
ABSTRACT:
A method of producing a polyamide resin by reacting with at least one diamine compound, at least one linear polyester resin consisting of at least one dicarboxylic acid component and at least one diol component and having an intrinsic viscosity of not less than 0.2 dl/g, the at least one diamine compound being used in an amount of 0.5-1.5 mol per 1 mol of the at least one linear polyester resin as calculated in the repeating unit thereof, the linear polyester resin and the diamine compound being reacted in a reaction medium comprising at least one solvent selected from aprotic protophobic polar solvents, so that the at least one diol component of the linear polyester resin is substituted by the diamine compound, resulting in the polyamide resin as a reaction product.
REFERENCES:
patent: 4193896 (1980-03-01), Cook
patent: 5306786 (1994-04-01), Moens et al.
patent: 5837803 (1998-11-01), Nakano
Hampton-Hightower P.
M & S Research and Development Co., Ltd.
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