Chemtura Corporation

Lanxess Solutions US Inc.

Narayan Subramaniam

Larry D Timberlake

Mark V Hanson

William Ray Fielding

Matthew S Burge

A flame-retardant resin composition comprises a base resin (A), such as a polyamide resin, and an aromatic organophosphorus oligomer or polymer.

Phosphorus-containing flame retardants

A flame-retardant resin composition comprises a base resin (A), such as a polyester, polyamide or polycarbonate resin, and an organophosphorus compound (B) having at least one of the following formulas (I), (II) and (III): where A is selected from O, S, SO, a single bond, alkyl, and &#x2014;CH&#x2014;P; Pis a phosphorus-containing group of the formula: Rand Rare the same or different and each is selected from H, O-alkyl, O-aryl, alkyl, aryl, and OM; Ris H or alkyl; M=Na, K, Zn, Al, Ca; a is an integer from 0 to 4, provided that a is at least 1 unit for each polymer chain; n is an integer from 1 to 100,000 and m is an integer from 0 to 100,000.

A flame-retardant resin composition comprises a base resin (A), such as a polyester or polycarbonate resin, and an aromatic organophosphorus compound, in particular, aromatic organophosphorus oligomers or polymers.

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West Lafayette, IN, United States of America

Narayan Subramaniam