Polyesteramides with high heat deflection temperatures
AssigneeEastman Chemical Company
InventorSam Richard Turner
Life of this patent
Estimating the term…
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: ----A--G--!.sub.x ----A--NH--R--NH--!.sub.y -- 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.
Claims11
Polyesteramides comprising:
- ----A--G--!.sub.x ----A--NH--R--NH--!.sub.y --
- 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 NH--R--NH is derived from a low melting diamine;
- 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.
Dependencies are inferred from the claim text.