Process for making and using bisaryl diphosphates

Details Process for making and using bisaryl diphosphates Process for making and using bisaryl diphosphates

1998-02-13

2000-02-29

Sanders, Kriellion

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C08K 553

Patent

active

060310359

ABSTRACT:
Flame retardancy is provided to polymer resins by adding to the resin a bisaryl diphosphate that has not been purified to remove catalyst or catalyst residue from the product. The bisaryl diphosphate may be prepared by a two-step process that starts with the semi-continuous addition of dry bisphenol A to a heated mixture of phosphorus oxychloride and MgCl, and concludes with the addition of dry phenol to the step one intermediate.

REFERENCES:
patent: 2520090 (1950-08-01), Barrett
patent: 4134876 (1979-01-01), Horner et al.
patent: 4267127 (1981-05-01), Selbeck et al.
patent: 4343732 (1982-08-01), Zama et al.
patent: 4933386 (1990-06-01), Nitoh et al.
patent: 5011736 (1991-04-01), Abolins et al.
patent: 5104450 (1992-04-01), Sand et al.
patent: 5135973 (1992-08-01), Fukasawa et al.
patent: 5204394 (1993-04-01), Gosens et al.
patent: 5281741 (1994-01-01), Gunkel et al.
patent: 5294654 (1994-03-01), Hellstern-Burnell et al.
patent: 5420327 (1995-05-01), Bright et al.
Abstract: Japan JP 09192506 Matsubara et al.
Abstract: Japan JP 09012587 A2 Matsubara et al.

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