Thermoplastic polymer blends comprising dynamically crosslinked polyurethane in an olefin polymer matrix

摘要

Compatibilized blends comprising a first phase comprising a thermoplastic olefin polymer and a second phase comprising a crosslinked, thermoplastic polyurethane are provided. The first phase is a continuous phase and the second phase can be co-5 continuous with the first phase, or dispersed as a non-continuous phase in the first phase. The blends further include a phenolic resole resin which at least partially crosslinks the thermoplastic polyurethane and acts as a compatibilizer for the olefin polymer and the thermoplastic polyurethane.

主权项

1. A compatibilized blend comprising:
(a) a continuous phase comprising a thermoplastic olefin polymer matrix; and (b) a dispersed phase comprising domains of a thermoplastic polyurethane crosslinked with a phenolic resole resin dispersed as a discontinuous phase in the continuous phase, the phenolic resole resin having the following structure: wherein n and m=0-15, R′ is an H atom or a CH2OH group and R is an alkyl group.