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US 5,179,175 AGranted
Polyamides from polyetheramines, hexamethylene diamine and adipic acid
AssigneeTexaco Chemical Company
InventorsGeorge P. Speranza, Donald H. Champion
Life of this patent
Estimating the term…
Abstract
Disclosed is a method for reducing compatibility problems when introducing a polyetheramine having a molecular weight of about 100 to 1000 into a nylon-6,6 polymer by prereacting the polyetheramine with two moles of adipic acid and reacting the adipic acid salt with nylon-6,6 and adipic acid.
Claims7
A method for introducing polyetheramines into a nylon-6,6 polymer which comprises prereacting a polyether diamine having a molecular weight of 190 to 1000 with adipic acid and reacting the adipic acid amide with the salt of nylon-6,6 and hexamethylene diamine to form a homogeneous copolymer.
Dependencies are inferred from the claim text.