Transesterification reaction of alkoxylated bisphenol-a and meth

Details Transesterification reaction of alkoxylated bisphenol-a and meth Transesterification reaction of alkoxylated bisphenol-a and meth

1995-06-02

1996-10-22

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560221, C07C 6976

Patent

active

055678386

ABSTRACT:
The present invention relates to a new method of making the dimethacrylate ester of alkoxylated bisphenol-A via transesterification with methyl methacrylate. This transesterification reaction proceeds at low temperatures and is driven by the removal of methanol as a methanol/saturated hydrocarbon azeotrope. The lower temperature reaction advantageously inhibits polyerization of the feed ester. The reaction is catalyzed by potassium based catalysts.

REFERENCES:
patent: 3810938 (1974-05-01), Schmitt et al.
patent: 3836576 (1974-09-01), Falize et al.
patent: 3923740 (1975-12-01), Schmitt et al.
patent: 4074062 (1978-02-01), Murakami et al.
patent: 4791221 (1988-12-01), Gabillet
patent: 4812591 (1989-05-01), Buysch et al.
patent: 4916255 (1990-04-01), Kobayashi et al.

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