COMPOSITION AND ARTICLE COMPRISING THERMOPLASTIC POLYURETHANE AND PARTICULATE ENGINEERING POLYMER

摘要

A composition includes 50 to 95 weight percent of a thermoplastic polyurethane, and 5 to 50 weight percent of a particulate engineering plastic. The particulate engineering plastic has a glass transition temperature or a crystalline melting point greater than or equal to 200° C. and includes a polyarylsulfone, a polyimide, a poly(phenylene sulfide), a semi-crystalline polyamide, or a combination thereof. Incorporation of the particulate engineering plastic into the thermoplastic polyurethane improves one or more of tensile strength, heat resistance, hardness, and char formation.

主权项

1. A composition comprising:
50 to 95 weight percent of a thermoplastic polyurethane; and 5 to 50 weight percent of a particulate engineering plastic; wherein the particulate engineering plastic comprises a polyarylsulfone, a polyimide, a poly(phenylene sulfide), a semi-crystalline polyamide, or a combination thereof; wherein the particulate engineering plastic has a glass transition temperature or a crystalline melting point greater than or equal to 200° C.; wherein the particulate engineering plastic has a mean particle size of 5 to 1000 micrometers; and wherein the weight percent values are based on the total weight of the composition.