Cross-linked polyesteramide from bis(2-oxazoline)

Details Cross-linked polyesteramide from bis(2-oxazoline) Cross-linked polyesteramide from bis(2-oxazoline)

1983-06-16

1984-10-02

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

524606, 525419, 528288, 528335, 528336, C08G 6944

Patent

active

044749422

ABSTRACT:
A new cross-linked polyester amide having structure in which the ester amide chain of the formula below: ##STR1## (wherein R and R' each are a bivalent hydrocarbon radical; n is a positive integer) as obtained by the reaction of a bis(2-oxazoline) compound and a dicarboxylic acid is contained in the polymer chain and at least 5% of its --NH-- group is cross-linked with a 2-oxazoline ring by ring-opening addition reaction.
The cross-linked polyesteramide is tough and excels in abrasion resistance and solvent resistance and can be utilized in the molding of machinery parts such as rolls and gears and embedded molding of electrical machinery and apparatus parts as well as for electric insulating materials and materials for dental uses.
The resin composition comprising the said cross-linked polyesteramide and about 3 to 95 weight % of reinforcements and/or fillers can provide the molding material having excellent mechanical properties, especially outstanding toughness, that cannot possibly be expected with conventional fiber-reinforced plastics and also exhibiting superior characteristics such as thermal properties.
The resin composition can be utilized not only in the application fields for conventional fiber-reinforced plastics but also in the new application areas where conventional fiber-reinforced plastics have failed to achieve application development.

REFERENCES:
Patentschrift 1050 540 (DBP 1050540)-Jaeger.
Polymer Letters, vol. 4, pp. 257-260 (1966).

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