Process for producing aliphatic copolyesteramide, an aliphatic c

Details Process for producing aliphatic copolyesteramide, an aliphatic c Process for producing aliphatic copolyesteramide, an aliphatic c

1982-06-11

1983-04-19

Phynes, Lucille M.

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

Synthetic resins

From carboxylic acid or derivative thereof

528272, 528274, 528279, 528292, C08G 6344, C08G 6900, C08G 6944

Patent

active

043806228

ABSTRACT:
The aliphatic copolyesteramide having high degree of polymerization, is prepared by heating a mixture of (A) ester-forming components comprising (a) aliphatic diols and (b) aliphatic dicarboxylic acids and (B) amide-forming components comprising at least one component selected from the group consisting of (a) aliphatic .omega.-aminocarboxylic acids and (b) equimolar salt of (.alpha.) aliphatic diamines and (.beta.) aliphatic dicarboxylic acids, at temperatures of about 150.degree. to 260.degree. C., substantially under an atmospheric pressure, in the presence of catalyst and in the substantially absence of water, and subsequently heating the resulting esterified product at temperatures of about 200.degree. to 300.degree. C. under a reduced pressure. The obtained copolyesteramide can be formed into various molded articles, such as tubing, having excellent flexibility, toughness, shapability, chemical resistance, heat resistance, hydrolysis resistance and fatigue resistance.

REFERENCES:
patent: 3997626 (1976-12-01), Bernert et al.
patent: 4101524 (1978-07-01), Burzin et al.
patent: 4171424 (1979-10-01), Habermeier et al.
patent: 4207410 (1980-06-01), Burzin et al.

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