Flame retarded polycarbonate polymers

Details Flame retarded polycarbonate polymers Flame retarded polycarbonate polymers

1986-03-04

1987-12-08

Foelak, Morton

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

Synthetic resins

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

525397, 525433, 525439, C08G 6548, C08L 7104

Patent

active

047119314

ABSTRACT:
A polycarbonate polymer composition rendered flame retardant by having combined these with an effective amount of a phosphorus-containing polyester polymer which is the polycondensation product of a glycol, phthalate and a phosphine oxide of the formula: ##STR1## wherein R.sub.1, may be the same or different radicals selected from the group consisting of hydrogen and methyl radicals and R.sub.2 is a radical of 2 to 8 carbon atoms.

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