Flame retardant polypropylene resin composition

Details Flame retardant polypropylene resin composition Flame retardant polypropylene resin composition

1990-04-03

1992-07-14

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524211, 524212, 524213, 524216, 524188, 524262, 524264, 524416, C08K 53492

Patent

active

051303574

ABSTRACT:
The present flame retardant compositions of polypropylene resin contains polypropylene as a principal constituent and the following constituents making a total of 100 wt %: (A) silane coupling agent and/or (D) olefinic synthetic rubber, (B) ammonium polyphosphate or melamine-modified ammonium polyphosphate, and (C) one or more nitrogen organic compounds which are producible nonflammable gas products and carbonaceous residues by the pyrolysis of the mixture.
Further, the other compositions of polypropylene resin contains (E) polyethylene resin along with the above constituents making a total of 100 wt %.
Moreover, the other compositions contains (E) polyethylene resin, and (F) crosslinking agent and (G) thiophosphite along with above constituents making a total of 100 wt. %.

REFERENCES:
patent: 4298509 (1981-11-01), Fochesato
patent: 4966931 (1990-10-01), Akitaya

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