Process for producing precondensates of partially crystalline or

Details Process for producing precondensates of partially crystalline or Process for producing precondensates of partially crystalline or

1995-07-06

1998-01-13

Hampton-Hightower, P.

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

Synthetic resins

From carboxylic acid or derivative thereof

528322, 528335, 528339, 528347, 528348, 528349, 525420, 525432, C08G 6908, C08G 7310

Patent

active

057081255

ABSTRACT:
A process for producing precondensates of partially crystalline or amorphous, thermoplastically processable, partially aromatic polyamides or copolyamides, and the use of the higher molecular weight of polyamides, accessible from the precondensates, for producing molding compositions, which are further processable by means of suitable processing techniques, involves the control of temperature and water vapor partial pressure, in a batch process.

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patent: 4465821 (1984-08-01), Nielinger et al.
patent: 4540772 (1985-09-01), Pipper et al.
patent: 4831108 (1989-05-01), Richardson et al.
patent: 4963646 (1990-10-01), Galland et al.
patent: 5098940 (1992-03-01), Brooks
patent: 5177178 (1993-01-01), Thullen et al.

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