Polyamides

Details Polyamides Polyamides

2007-01-09

2007-01-09

Hightower, Patricia (Department: 1711)

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

Synthetic resins

From carboxylic acid or derivative thereof

C528S324000, C528S314000, C528S345000

Reexamination Certificate

active

10973145

ABSTRACT:
The reaction of dimer acids, C6to C18aliphatic dicarboxylic acids, dimer amines, alkylene diamines having from 2 to 8 carbon atoms, and polyoxyalkylene diamines provides polyamides having excellent cold flexibility, high heat resistance, and low moisture absorbency (low water vapor transmission).

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