Method of producing partially aromatic copolyamides from aromati

Details Method of producing partially aromatic copolyamides from aromati Method of producing partially aromatic copolyamides from aromati

1997-02-13

1999-04-20

Hampton-Hightower, P.

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

Synthetic resins

From carboxylic acid or derivative thereof

528288, 528310, 528332, 528335, 528336, 528480, 528502R, C08G 6944

Patent

active

058958096

ABSTRACT:
The invention relates to a method of producing partially aromatic copolyamides from polymeric esters of aromatic dicarboxylic acids by amidation of the ester groups with diamines, removal of the split-off alcohols or diols and after-condensation of the low-molecular precondensates as well as by the following compounding to polyamide molding materials.

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patent: 5532404 (1996-07-01), Gallagher
A New Process for the Production of P-Phenylenediamine Alternatively from Polyester Waste, Terephthalic Ester, or Terephthalic Acid--Ind. Eng. Chem., Prod. Res. Dev., vol. 15, No. 3, 1976 (pp. 186-189).
Plastics Focus--An Interpretive News Report, vol. 26, No. 19, Monday, Sep. 26, 1994.
Chance or Risk for Pet Packaging--Recycling--How to Close the Loop in Western Europe -H.-W. Blumschein, Davos Recycle '92 International Forum and Exposition, Apr. 7-10, 1992 (pp. 2/6-1-2/6-18).

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