Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1980-02-12
1981-04-07
Phynes, Lucille M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C08G 6334
Patent
active
042607353
ABSTRACT:
Using an alkanolamine titanium chelate catalyst, such as triethanolamine titanium chelate, in small catalytic amounts to esterify and polycondense aromatic polycarboxylic acids or anhydrides, such as terephthalic acid, with a glycol, such as ethylene glycol at low glycol to acid reactant ratios surprisingly yields a polyester of low diethylene glycol content without adding an additional diethylene glycol suppressant.
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Dupont Bulletin, Versatile Tyzor Organic Titanates, pp. 1-45.
Bander John A.
Lazarus Stanley D.
Twilley Ian C.
Allied Chemical Corporation
Anderson Richard A.
Phynes Lucille M.
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