Invista North America S.a.r.l.

The Lycra Company LLC

Invista Technologies S.a.r.l.

Robert O Waldbauer, Jr

Hong Liu

Douglas K Farmer

Carmen A Covelli

James Michael Lambert

Young D Nguyen

Norman J D'Allura

Gregory L Yoder

Liu Hong

Included are elastomeric fibers and method for preparing such fibers, which include a bio-derived butanediol. The bio-derived butanediol is used to prepare a polymeric glycol composition, which is contacted with a diisocyanate and spun to provide an elastomeric fiber.

Bio-derived polyurethane fiber

Embodiments of the disclosure include elastomeric stretch fibers containing an anti-tack agent, methods of preparing the fiber, methods of using this fiber, articles including this fiber, and the like.

Elastic fiber containing an anti-tack additive

An article comprising a yarn comprising an elastomeric propylene-based polymer composition; said polymer composition comprising at least one elastomeric propylene-based polymer, wherein said yarn has a draft greater than 200%; wherein said article is a fabric or a garment.

Fabric including polyolefin elastic fiber

The invention provides spandex having improved hysteresis and a method for making such spandex. The spandex of the invention comprises the polyurethaneurea reaction product of:

Spandex of a particular composition and process for making same

Growing community of inventors

Waynesboro, VA, United States of America

Robert O Waldbauer, Jr