Fire retardant composition comprising a melamine-aldehyde-phosph

Details Fire retardant composition comprising a melamine-aldehyde-phosph Fire retardant composition comprising a melamine-aldehyde-phosph

1978-05-30

1980-03-25

Seccuro, Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525158, 528244, 528254, 525398, 525509, C08L 6128, C08L 6132

Patent

active

041951395

ABSTRACT:
A melamine-aldehyde-phosphate condensation product which is useful as a fire-retardant, especially for plastics materials, and which is made by reacting melamine and at least one aldehyde, or a condensate of melamine and at least one aldehyde, with at least one oxyacid of phosphorus or precursor therefor or ester thereof until the condensation product is essentially non-acidic, the proportions of melamine and aldehyde being chosen such that the molar ratio of units derived from melamine: units derived from aldehyde in the condensation product is in the range 1:1.5 to 1:4.5, and the proportions of melamine and oxyacid of phosphorus or precursor therefor or ester thereof being chosen such that the molar ratio of units derived from melamine:phosphorus in the condensation product is in the range 1:0.4 to 1:1.7.

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