Patent · US Active

Bi-component spandex with separable reduced friction filaments

US9487889B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignee

INVISTA North America S.a.r.l. · US

Inventors

Steven W. Smith · Waynesboro, US
Raymond Leung · Tsuen Wan, CN

Key dates

Filing date	May 18, 2011
Grant date	Nov 8, 2016
Priority date	—
Expiry date	Jun 17, 2032

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD02G3/32
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Disclosed herein are spandex fibers having reduced friction combined to provide a multiple end spandex package. The spandex fibers have a sheath-core cross-section with a lubricating additive is included in the sheath. A fusing additive specifically excluded to avoid coalescence among the individual filaments in the yarn. When combined in a yarn package, the multiple filaments are separable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.