Highly pendant phosphorus-containing reactive oligomer flame ret

Details Highly pendant phosphorus-containing reactive oligomer flame ret Highly pendant phosphorus-containing reactive oligomer flame ret

1995-06-28

1997-07-22

Richter, Johann

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

Organic compounds

Phosphorus esters

558180, C07F 932, C07F 940

Patent

active

056505310

ABSTRACT:
The synthesis of a non-halogen flame retardant oligomer containing highly pendnat phosphorus moieties is disclosed. Diols, unsaturated double bond-containing dicarboxylic acids or acid anhydrides and saturated dicarboxylic acids or acid anhydrides are first esterified to form an oligomeric unsaturated polyester, and then a phsophorus-containing compound is grafted onto the oligomeric unsaturated polyester through addtion reaction in the presence of a selected metal complex catalyst.

REFERENCES:
patent: 3376274 (1968-04-01), Boyer et al.

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