Bisphenol phenol adducts

Details Bisphenol phenol adducts Bisphenol phenol adducts

2005-06-14

2005-06-14

Popovics, Robert James (Department: 1724)

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

Organic compounds

Oxygen containing

C568S727000, C568S728000, C210S768000, C210S772000, C210S784000, C210S402000, C210S406000

Reexamination Certificate

active

06906227

ABSTRACT:
The application relates to a process for producing high-purity bis(4-hydroxyaryl)alkanes from adducts of bis(4-hydroxyaryl)alkanes and aromatic hydroxy compounds, which are obtained by acid-catalysed reaction of the aromatic hydroxy compounds with ketones.

REFERENCES:
patent: 3972950 (1976-08-01), Kwantes
patent: 4212997 (1980-07-01), Adams et al.
patent: 2003/0038094 (2003-02-01), Neumann et al.
patent: 94/19302 (1994-09-01), None

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