Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1980-11-28
1983-04-19
Griffin, Ronald W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
524605, 528272, 528274, 528275, 528286, 528293, C08G 6316, C08G 6320
Patent
active
043806210
ABSTRACT:
A fast crystallizing polyester wherein the polyester has an intrinsic viscosity of greater than 0.3 and at least 90 mole % of the repeating units of the polyester are residues obtained from aromatic diacids or hydroxyacids and aliphatic diols characterized in that at least some of the acid end groups of the polyester have the formula --Y.sup.- M.sup.+ where M is an alkaline metal ion and Y is an anion selected from carboxylate, sulphinate, phosphinate, phosphate, sulphonate, phosphite and borate ions, which ionized end groups have been produced during polymerization of the polyester by either:
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Higgins David E.
Nield Eric
Young Mark W.
Griffin Ronald W.
Imperial Chemical Industries Limited
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