Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1980-02-13
1983-06-14
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
57904, 521907, 524710, C08K 552, C08K 553
Patent
active
043884318
ABSTRACT:
A group of diphosphonic acid tetra-esters and phosphonic or thiophosphonic acid O,O,O-triesters containing dioxaphosphorinane rings are useful as flame retardants for polymeric organic materials, particularly polyesters. The compounds, some of which are novel, are prepared by reaction of the corresponding phosphites with peroxy compounds or with sulphur.
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Mauric Claudine
Wolf Rainer
Doyle Thomas C.
Kight III John
Sandoz Ltd.
Sharkin Gerald D.
Vila Richard E.
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