The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2022
Filed:
May. 29, 2014
The Lycra Company Llc, Wilmington, DE (US);
Hong Liu, Waynesboro, VA (US);
Steven Wayne Smith, Waynesboro, VA (US);
Achille Mayelle Bivigou Koumba, Charlottesville, VA (US);
Geoffey Davis Hietpas, Newark, DE (US);
Willem Bakker, Divonne, FR;
Andreas J. Blab, Kennett Square, PA (US);
Tianyi Liao, Chadds Ford, PA (US);
Lijuan Pi, Newark, DE (US);
THE LYCRA COMPANY LLC, Wilmington, DE (US);
Abstract
Included are segmented polyurethane elastic fibers or spandex fibers, capable of bonding to polymer fiber such as nylon or polyamide fibers, in addition to bonding to itself, for apparel textile applications. More particularly the invention relates to bicomponent spandex fibers, with a heat resistant core and a heat sensitive sheath, spun from polymer solutions. The nylon fabrics containing such spandex fibers have enhanced stretch performance and improved surface appearance after heat treatment to activate the fusing and bonding between nylon fibers and spandex fibers.