Fastener Element and Method for Producing Same
AssigneeYKK Corporation
InventorsToshiyuki Asami, Isamu Michihata, Sayaka Nakamura, Yoshinori Kojima
Life of this patent
Estimating the term…
Abstract
Elements are made of a polyacetal resin, which can effectively improve the chain crosswise strength while maintaining wear resistance. Provided is a fastener element made of a polyacetal resin composition containing 5 to 30% by mass of reinforcing fibers each having an average fiber diameter of 5 to 15 μm and a numeric average fiber length of 150 to 500 μm.
Claims10
A fastener element made of a polyacetal resin composition containing 5 to 30% by mass of reinforcing fibers having an average fiber diameter of 5 to 15 μm and a numeric average fiber length of 150 to 500 μm.
A method for producing a fastener element comprising a polyacetal resin composition containing reinforcing fibers, the method comprising:
- adjusting the content of the reinforcing fibers in the polyacetal resin composition by producing a masterbatch through a step of melt-kneading a first polyacetal resin composition containing the reinforcing fibers, and then mixing the masterbatch with a second polyacetal resin composition that does not contain the reinforcing fibers.
Dependencies are inferred from the claim text.