Low Friction Systems and Devices

Abstract

Disclosed herein are compositions and systems having a low coefficient of friction. The low friction system comprises a first surface and a second surface, where the first surface comprises (i) a polycarbonate and a first additive, or (ii) a polybutylene terephthalate and a second additive; and the second surface comprises a polyoxymethylene and a third additive. The low friction compositions and systems are valuable for producing devices, such as medical devices.

1 .- 15 . (canceled) 
     
     
         16 . A method for producing a device, comprising:
 forming a first moulding composition comprising a polycarbonate and a first additive and optionally a fourth additive, or a polybutylene terephthalate and a second additive and optionally a fifth additive;   forming a second moulding composition comprising a polyoxymethylene and a third additive; and   moulding the first and second moulding compositions.   
     
     
         17 . A composition, comprising:
 (i) a polycarbonate and a first additive, or a polybutylene terephthalate and a second additive, which form a first component; and   (ii) a polyoxymethylene and a third additive, which form a second component;   wherein the first and the second components upon mutual contact form a low friction system.