Fast crystallizing polyester compositions

Details Fast crystallizing polyester compositions Fast crystallizing polyester compositions

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:

REFERENCES:
patent: 3367926 (1968-02-01), Voeks
patent: 3575931 (1971-04-01), Sherman
patent: 3740380 (1973-06-01), Eichers et al.
patent: 3741936 (1973-06-01), Herwig et al.
patent: 4034013 (1977-07-01), Lane
patent: 4096202 (1978-06-01), Farnham et al.
patent: 4163100 (1979-07-01), Bier et al.
patent: 4211686 (1980-07-01), Nishikawa et al.
patent: 4281071 (1981-07-01), Fearing et al.
patent: 4282133 (1981-08-01), Fearing et al.

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