Thermoplastic Polymer Blends Comprising Dynamically Crosslinked Polyurethane in an Olefin Polymer Matrix
AssigneeDow Global Technologies LLC
InventorsYabin Sun, Xiang Yang Tai, Li Qiang Fan
Life of this patent
Estimating the term…
Abstract
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.
Claims10
A compatibilized blend comprising:
- (a) a continuous phase comprising a thermoplastic olefin polymer;
- (b) a dispersed or co-continuous phase comprising a crosslinked, thermoplastic polyurethane dispersed in the continuous phase or co-continuous with the continuous phase;
- and
- (c) a phenolic resole resin crosslinking the thermoplastic polyurethane, wherein the phenolic resole resin also acts as a compatibilizer for the thermoplastic olefin polymer and the polyurethane.
A method of making a compatibilized blend, the method comprising mixing a thermoplastic olefin polymer, a thermoplastic polyurethane and a phenolic resole resin and crosslinking the thermoplastic polyurethane with the phenolic resole resin with continuous mixing.
Dependencies are inferred from the claim text.