Preparation of amorphous/semicrystalline semi-aromatic (co)polya

Details Preparation of amorphous/semicrystalline semi-aromatic (co)polya Preparation of amorphous/semicrystalline semi-aromatic (co)polya

1990-02-21

1992-04-28

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528336, 528338, 528339, 528340, 528347, C08G 6928

Patent

active

051091062

ABSTRACT:
Amorphous or semicrystalline semi-aromatic copolyamides are prepared, with significantly reduced loss of amino reactant, by polycondensing an acidic monomer which includes at least one aromatic dicarboxylic acid having from 8 to 18 carbon atoms with an amino comonomer consisting essentially of an alkylpentamethylenediamine, or salt thereof, wherein said polycondensation is carried out in a closed reaction zone.

REFERENCES:
patent: 4111921 (1978-09-01), Bier et al.
patent: 4163101 (1979-07-01), Schade et al.
Chemical Abstracts, vol. 71, No. 24, Dec. 15, 1969, p. 75, No. 114079d, Columbus, Ohio, U.S.; & JP-A-69 19551 (Toyo Rayon Co., Ltd.) Aug. 23, 1969.

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