Elastic fiber containing an anti-tack additive

Patent metadata

Field	Value
Publication number	US-10039855-B2
Application number	US-96972510-A
Country	US
Kind code	B2
Filing date	Dec 16, 2010
Priority date	Dec 23, 2009
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

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.

First claim

The invention claimed is:

1. A yarn comprising a fiber consisting of:
an elastomeric propylene based polymer;
an anti-tack agent, wherein the anti-tack agent is a bis-stearamide in combination with another anti-tack agent selected from the group consisting of TiO 2 , corn starch, talc, barium sulfate, lamellar clay, and calcium carbonate;
a diene selected from the group consisting of 5-ethylidene-2-norbornene (ENB); 1,4-hexadiene; 5-methylene-2-norbornene (MNB); 1,6-octadiene; 5-methyl-1,4-hexadiene; 3,7-dimethyl-1,6-oetadiene; 1,3-cyclopentadiene; 1,4-cyclohexadiene; vinyl norbornene (VNB); dicyclopentadiene (DCPD), and a combination thereof;
a non-silicone finishing agent on a surface of the fiber, said fiber having less than 0.01 weight % of a silicone-based finishing agent on the surface of the fiber;
optionally an additive selected from an antioxidant, thermal stabilizer, UV stabilizer, pigment, delustrant, dye, dye enhancer and/or additive to enhance resistance to chlorine degradation; and
optionally a crosslinking agent selected from the group consisting of: a multifunctional acrylate, a multifunctional methacrylate, a functionalized polybutadiene resin, a functionalized cyanurate, and allyl isocyanurate;
wherein the anti-tack agent is present in an amount of about 0.5 to about 30% by weight of the fiber;
wherein said anti-tack agent is blended with said elastomeric propylene-based polymer prior to spinning; and
wherein said yarn is spun, wound and unwound on a yarn package without sticking together.

2. The yarn of claim 1 , wherein the bis-stearamide is selected from the group consisting of bi-stearyl-ethylene-diamide; N,N′-ethylene bisstearamide; N,N′-ethylene bis(octadecanamide); 1,2-bis(octadecanamido) ethane; and a combination thereof.

3. The yarn of claim 1 , wherein the non-silicone based finishing agent comprises an ester based oil finish or a fatty acid based oil finish or a combination thereof.

4. The yam of claim 1 , wherein the fiber is at least partially crosslinked.

5. The yarn of claim 1 , wherein the anti-tack agent is an ethylene bis-stearamide.

6. The yarn of claim 5 , wherein the ethylene bis-stearamide is present in an amount of about 1 to about 10% by weight of the fiber.

7. An article comprising the yarn of claim 1 .

Assignees

• Lambert James Michael
• Nguyen Young D
• Waldbauer Jr Robert O
• Liu Hong
• Invista North America Sarl

Inventors

• Lambert James Michael
• Nguyen Young D
• Waldbauer Jr Robert O
• Liu Hong

Classifications

• D10B2401/061

  elastic · CPC title

• D01F1/10 Primary

  Other agents for modifying properties · CPC title

• A61L15/14 Primary

  Use of materials characterised by their function or physical properties · CPC title

• A61L15/24

  Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof {(A61L15/225 takes precedence)} · CPC title

• H01J2237/3156

  Curing · CPC title