×

Synthetic fibers having uneven surfaces and a method of producing same

  • US 4,792,489 A
  • Filed: 12/15/1986
  • Issued: 12/20/1988
  • Est. Priority Date: 12/27/1985
  • Status: Expired due to Term
First Claim
Patent Images

1. A synthetic fiber formed of polyamide having an uneven surface structure consisting of ridges and recesses on the surface of said fiber, in which said uneven surface structure is comprised of a pattern formed in the entire external circumference of the fiber such that (i) each pair of adjacent recesses have their respective bottoms spaced apart from each other at an interval of about 3 to 30μ

  • , as measured along the external circumference of the fiber in a plane normal to a longitudinal axis of the fiber, (ii) the apex to bottom distance of any ridge as measured in a direction normal to the longitudinal axis of the fiber is about 0.2 to 2μ

    , and (iii) about 0.2 to 3 ridges are present per 10μ

    along said external circumference in said plane.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×