Flame retardant polyurethane composition

摘要

The present invention is a flame-retardant polyurethane composition comprising (a) a thermoplastic polyurethane-based resin component, (b) a phosphorus flame retardant particulate filler, and (c) a low melting temperature phosphorus flame retardant agent.

主权项

1. A flame retardant polyurethane composition consisting of:
a. a thermoplastic polyurethane-based resin component that comprises both a thermoplastic polyurethane and a polyolefin, the thermoplastic polyurethane being present in an amount greater than or equal to about 30 weight percent of the total thermoplastic polyurethane-based resin component with the balance of the resin component being the polyolefin; b. at least one phosphorus flame retardant particulate filler; and c. at least one low melting temperature phosphorus flame retardant agent, wherein the low melting temperature phosphorus flame retardant agent has a melting temperature less than 170 degrees Celsius; and d. optionally one or more components selected from the group consisting of antioxidants, thermal stabilizers, hydrolytic stability enhancers, acid scavengers, colorants, UV stabilizers, processing aids, and synergist additives.