Polyesteramides with high heat deflection temperatures

Details Polyesteramides with high heat deflection temperatures Polyesteramides with high heat deflection temperatures

1995-08-21

1997-09-30

Seidleck, James J.

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

Synthetic resins

From carboxylic acid or derivative thereof

528272, 528277, 528282, 528283, 528285, 528292, 528304, 5283083, 528332, C08G 6926

Patent

active

056726767

ABSTRACT:
New polyesteramides having glass transition temperatures (Tg's) of up to 130.degree. C. and heat deflection temperatures that are in the 100.degree. C. to 110.degree. C. range are disclosed. The new polyesteramides of this invention are made by sequential addition of selected diamines to the diacid/glycol melt. The polyesteramides comprise:
wherein A is an organic dicarboxylic acid; G is a glycol selected from linear aliphatic diols and cycloaliphatic diols having 5 to 20 carbon atoms; R is selected from alkyl, cycloalkyl, arylkyl, or aryl; and x and y are whole numbers having an x/y ratio between about 9 to about 0.5 and sum of X and Y is from about 2 to about 500.

REFERENCES:
patent: 2547113 (1951-04-01), Drewitt et al.
Thermally Stable Polymers, Synthesis and Properties, "Nonheterocyclic Polymers: Backbones Containing Carbon and Acyclic Nitrogen, Polyamides, and Others", Chapter 4, p. 67, P. E. Cassidy, Marcel Dekker, Inc., New York.

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