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US 6,608,168 B1Granted
Polytrimethylene ether esters
AssigneeE. I. Du Pont de Nemours and Company
InventorHoward C. Ng
Life of this patent
Estimating the term…
Abstract
A random polytrimethylene ether ester prepared by polycondensation of 1,3-propanediol reactant and about 10 to about 0.1 mole % of aliphatic or aromatic diacid or diester, as well as its manufacture and use thereof.
Claims22
A random polytrimethylene ether ester prepared by polycondensation of 1,3-propanediol reactant and about 10 to about 0.1 mole % of aliphatic or aromatic diacid or diester.
A random polytrimethylene ether ester by polycondensation of 1,3-propanediol reactant and about 10 to about 0.1 mole % of aliphatic or aromatic diacid.
Dependencies are inferred from the claim text.