(4-Hydroxy-alkylphenyl diphenyl phosphate flame rerardants

Details (4-Hydroxy-alkylphenyl diphenyl phosphate flame rerardants (4-Hydroxy-alkylphenyl diphenyl phosphate flame rerardants

1997-06-20

1998-10-06

Ambrose, Michael G.

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

Organic compounds

Phosphorus esters

C07F 912

Patent

active

058178570

ABSTRACT:
The present invention is a process for forming monohydroxy-terminated aromatic oligomeric phosphates by the reaction of a diaryl halophosphate, such as diphenyl chlorophosphate, optionally in the presence of some monoaryl dihalophosphate, with an aromatic diol, such as resorcinol, to form the monohydroxy-terminated aromatic oligomeric phosphate. The reaction preferably employs a Lewis acid catalyst, such as magnesium dichloride.

REFERENCES:
Database CAPLUS on STN.RTM., Chemical Abstracts Service, (Columbus, Ohio), Accession No. 1995-869449; Japan Kokai Tokkyo Koho Hei-07-157595, Jun. 20, 1995, abstract, 1995.

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