Method for the production of phosphorus-containing aromatic poly

Details Method for the production of phosphorus-containing aromatic poly Method for the production of phosphorus-containing aromatic poly

1993-10-21

1995-03-21

Acquah, Samuel A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528 88, 528104, 528112, 528167, 528169, 528287, 528398, C08G 6379

Patent

active

053996542

ABSTRACT:
A phosphorus-containing wholly aromatic polyester is produced by an interfacial polymerization method which includes the step of reacting a phosphorus-containing bisphenol compound and a bisphenol compound with dicarboxylic acid chlorides. An organic layer containing the dicarboxylic acid chlorides and phase transfer catalyst is added into an alkaline aqueous layer which contains a bisphenol compound.

REFERENCES:
patent: 4463159 (1984-07-01), Besecke et al.

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