Acrylic fiber having improved basic dyeability
AssigneeMonsanto Company
InventorsHartwig C. Bach, Helmuth E. Hinderer
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Abstract
Disclosed is an acrylic fiber having improved basic dyeability. The fiber is made by a process wherein a copolymer of an acrylic monomer and a sulfonated vinyl monomer is dissolved in a solvent to form a spinning dope and a solution of polystyrene in the same solvent is added to the dope prior to spinning the dope to form fibers. The polystyrene will be in the form of a separate phase dispersed throughout the spinning dope and the fibers formed from the dope. Fibers formed from this polystyrene-containing dope have improved basic dyeability.
Claims5
An acrylic fiber having improved basic dyeability, said fiber being formed from a blend of
- a. an acrylic polymer containing at least about 35 weight percent acylonitrile and 1 to 20 weight percent of a sulfonated vinyl monomer, said sulfonated vinyl monomer being polymerized with said acrylonitrile, and
- b. 1-20 weight percent of polystyrene, said polystyrene being present in the form of a separate phase dispersed throughout the fiber.
Dependencies are inferred from the claim text.