Polyamide resins with good toughness properties

Details Polyamide resins with good toughness properties Polyamide resins with good toughness properties

1988-08-18

1989-09-19

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528289, 528302, 528363, 528367, 528906, C08G 6302

Patent

active

048682772

ABSTRACT:
Disclosed is a novel class of linear segmented non-elastomeric thermoplastic polyesteramides. The polymers are easily obtained by reacting a carboxylic acid-terminated prepolymer (derived by reacting at least a two-molar proportion of a dicarboxylic acid with a polymeric diol of molecular weight 400 to 6000), a dicarboxylic acid, and a diisocyanate.
The polymers so obtained have nylon-like properties, particularly nylon 11 or 12, but are characterized by superior high temperature properties therefrom. At the same time, they have excellent toughness and very low water absorption characteristics.

REFERENCES:
patent: 4129715 (1978-12-01), Chen et al.
patent: 4415693 (1983-11-01), Chen et al.
patent: 4649180 (1987-03-01), Chen et al.
patent: 4772649 (1988-09-01), Andrews et al.

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