Thermoplastic polyurethane/rubbery polymer blend

Details Thermoplastic polyurethane/rubbery polymer blend Thermoplastic polyurethane/rubbery polymer blend

1998-01-20

1999-10-19

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525128, 425505, 156 47, B28B 2100, B28B 2306, C08F 830, C08L 7500

Patent

active

059690470

ABSTRACT:
This invention discloses a polymeric blend which is useful in manufacturing a wide variety of articles, said blend being comprised of (1) a thermoplastic polyurethane and (2) a rubbery polymer which is comprised of repeat units which are comprised of (a) butyl acrylate, (b) at least one member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate and ethyl acrylate, (c) acrylonitrile, (d) styrene, (e) a surfactant selected from the group consisting of sulfonates and sulfate derivatives, (f) a dispersant selected from the group consisting of aromatic formaldehyde condensation products and polycarboxylates or optionally a half ester maleate soap and (g) a crosslinking agent. These blends can be utilized in a wide variety of applications, such as automotive door handles, buttons and knobs. For instance, such blends exhibit excellent characteristics for making buttons and knobs for radios, television sets and other electronic devices. Insulation for electrical cables can also be made by blending such rubbery polymers into thermoplastic polyurethanes.

REFERENCES:
patent: 5380785 (1995-01-01), Ngoc et al.
patent: 5462993 (1995-10-01), Ngoc et al.
patent: 5504155 (1996-04-01), Ngoc et al.
patent: 5616651 (1997-04-01), Nino et al.
patent: 5859132 (1999-01-01), Ngoc

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