Bisphenol compound and process for preparation thereof

Details Bisphenol compound and process for preparation thereof Bisphenol compound and process for preparation thereof

2006-09-27

2008-11-04

Jiang, Shaojia Anna (Department: 1621)

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

Organic compounds

Oxygen containing

Reexamination Certificate

active

07446234

ABSTRACT:
The present invention provides a novel bisphenol compound of formula (I).wherein R1and R2are the same or different and are independently either hydrogen or methyl at each occurrence. The present invention also provides a process for preparation of these bisphenol compounds starting from Cashew Nut Shell Liquid (CNSL); —a renewable resource material. The bisphenols prepared in the present invention can be utilized as difunctional monomers for the preparation of various polymers such as epoxy resins, polyesters, polyethersulfones, polyetherketones, polyetherimides, polyarylates, polycarbonates, etc.

REFERENCES:
patent: 2005/0040390 (2005-02-01), Pfeiffer et al.

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