Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1990-01-16
1992-01-21
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528332, 528335, 528336, 528347, C08G 6944
Patent
active
050829246
ABSTRACT:
Polyamide-esters may produce by reacting a polyethylene glycol monoamine with one or more dicarboxylic acids. Two methods may be employed: (1) the polyethylene glycol monoamine may be reacted with at least two different dicarboxylic acids simultaneously, or (2) the polyethylene glycol monoamine may be reacted with a first dicarboxylic acid in a first step to form an adduct, and then reacting the adduct with a second dicarboxylic acid to form the polyamide-esters, where the first and second dicarboxylic acids may be the same or different. Suitable dicarboxylic acids include, adipic acid; terephthalic acid; isophthalic acid; t-butyl isophthalic acid; 1,1,3-trimethyl-5-carboxy-3-(p-carboxyphenyl) indane, also known as phenylindane dicarboxylic acid (PIDA); naphthalenic dicarboxylic acid and mixtures thereof. Suitable polyethylene glycol monoamines include diethylene glycol monoamine, triethylene glycol monoamine and tetraethylene glycol monoamine. Terephthalic acid is a preferred acid, and in one embodiment gives polyamide-esters with the formula ##STR1## where R is an alkyl or aryl group having from 3 to 34 carbon atoms, x ranges from 2 to 6, and y ranges from about 2 to about 50.
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Lin Jiang-Jen
Speranza George P.
Anderson Harold D.
Mossman David L.
Park Jack H.
Priem Kenneth R.
Texaco Chemical Company
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