Catalysts for polyester production

Details Catalysts for polyester production Catalysts for polyester production

1993-12-20

1995-01-17

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528272, 528275, 528308, 5283086, C08G 6382

Patent

active

053826507

ABSTRACT:
Novel catalysts for polyester production by esterification and/or transesterification are MoS.sub.2 or WS.sub.2 which have been intercalated by alkali metals cations, especially lithium cations, and then contacted with an alcohol or a polyol, a preferred polyol being a glycol which is one of the monomeric units in the polyester produced.

REFERENCES:
patent: 5041525 (1991-08-01), Jackson
patent: 5096773 (1992-03-01), Sakamoto
patent: 5279881 (1994-01-01), Kotani
Mark, H. (Ed.), et al., Encyclopedia of Polymer Science & Engineering, John Wiley & Sons, NY, 12, 1-75, 1988.
Joensen, P. et al, Mat. Res. Bull., 21, 457-461, 1986.
Dines, M. B., Mat. Res. Bull., 10, 287-292, 1975.

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