Self-lubricated polyacetal molding compositions and molded articles formed thereof.

摘要

Self-lubricating polyacetal resin compositions and molded articles (eg "wear parts") are provided which comprise a polyacetal base resin and a silica powder in which a silicone polymer (e.g. silicone oil) is absorbed. The silica powder acts as a carrier for the silicone polymer so as to improve the dispersibility thereof in the polyacetal base resin as well as to allow greater silicone polymer "loading" of the polyacetal base resin. As a result, improved lubricant dispersibility and sliding characteristics are achieved.