Lubrizol Advanced Materials, Inc.

Christopher A Sprague

Ravi Ram Vedula

James E Bryson, Jr

Julius Farkas

Daniel Michael Fischer

Yona Eckstein

Yinbing Xia

Lalith B Suragani Venu

Mouh-Wahng Lee

Brandon Walton

Ravi R Vedula

Jr Bryson

James E Bryson

Jr James E Bryson

The invention relates to a melt-spun thermoplastic polyurethane fiber which comprises a copolymer diol derived from caprolactone and polyether polyol and fabrics made therefrom, both of which are capable of being dyed under disperse dyeing conditions.

Dyeable fabric comprising melt-spun thermoplastic polyurethane fibers

The present invention relates to elastomeric resins, fibers made from said resins, fabrics made with said fibers, and applications and uses for the resins, fibers and fabrics. The elastomer resins of the invention provide high strength fibers and well balanced fabrics with good physical properties and chemical resistance, making them attractive for use in various applications that use elastic fibers and fabrics.

Elastomer resins, fibers and fabrics thereof, and uses thereof

Thermoplastic polyether polyurethane polymers are disclosed which are mixed with a crosslinking agent to achieve long run times in a melt spinning process to make elastic fibers. The crosslinking agent is preferably a polyether or polyester polyol reacted with a diisocyanate. A melt spinning process is also disclosed using a polyether polyurethane with a crosslinking agent. Long melt spinning run times can be achieved without experiencing excessive pressure buildup in the spinneret and fiber breakage. The thermoplastic polyether polyurethane polymers are made by reacting: (1) a blend of two or more hydroxyl terminated intermediates wherein one intermediate is a polyether intermediate and has a higher number average molecular weight than the other said polyether intermediates, and wherein the weighted average number average molecular weight of said blend is greater than 1200 Daltons; (2) at least one polyisocyanate; and (3) at least one hydroxyl terminated chain extender. Melt spun fibers disclosed have excellent dye pickup, bleach resistance, and color fastness. The melt spun fibers can be dyed with polyester fibers and retain excellent physical properties.

Melt spun polyether TPU fibers having mixed polyols and process

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Cuyahoga Falls, OH, United States of America

Christopher A Sprague