Manufacture of terephthalic acid copolyamides

Details Manufacture of terephthalic acid copolyamides Manufacture of terephthalic acid copolyamides

1994-09-06

1996-05-14

Seidleck, James J.

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

Synthetic resins

From carboxylic acid or derivative thereof

528335, 528336, 528338, 528339, 528340, 528347, C08G 6926, C08G 6928

Patent

active

055168825

ABSTRACT:
A process for the preparation of a copolyamide involving copolymerization of (1) a carboxylic acid of terephthalic acid or a terephthalic acid/isophthalic acid mixture with (2) a mixture of hexamethylene diamine and 2-methyl pentamethylene diamine. The combined amount of isophthalic acid and 2-methyl pentamethylene diamine is controlled so that the resultant copolyamide exhibits few, if any, high melting fractions.

REFERENCES:
patent: 5109106 (1992-04-01), Lahary et al.
patent: 5194578 (1993-03-01), Anton
patent: 5270437 (1993-12-01), Manks
patent: 5302691 (1994-04-01), Soelch
patent: 5322923 (1994-06-01), Lahary et al.
patent: 5336754 (1994-08-01), Lahary et al.
patent: 5378800 (1995-01-01), Mok et al.

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