Flame-resistant polyurethanes

Details Flame-resistant polyurethanes Flame-resistant polyurethanes

1997-02-11

1999-11-16

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

521 85, 521107, 528 72, C08K 552

Patent

active

059859652

ABSTRACT:
The flame-resistant polyurethanes of the invention comprise, as flameproofing agents, mixtures of oligomeric phosphoric acid esters which carry hydroxyalkoxy groups, of the formula I ##STR1## in which q denotes an average chain length of 0.5 to 10, R.sub.1 is a hydroxyl-containing radical of the formula II a,

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