Thermally bondable fabrics, preparation and use

Details Thermally bondable fabrics, preparation and use Thermally bondable fabrics, preparation and use

C - Chemistry, Metallurgy

08

L

C08L 23/06 (2006.01) B01F 13/00 (2006.01) C08L 23/04 (2006.01) C08L 23/08 (2006.01) C08L 23/18 (2006.01) D01F 6/46 (2006.01) D04H 3/03 (2006.01)

Patent

CA 2071918

Thermally bonded fabrics having high normalized tensile strength are disclosed. Blends of high molecular weight linear ethylene polymers and low molecular weight linear ethylene polymers provide improved staple fiber-forming capabilities over that found with either polymer taken alone. Staple fibers formed from the blends have Q values above 4.5 and/or I10/I2 values above 7. The staple fibers formed from the blends of high molecular weight linear ethylene polymers and low molecular weight linear ethylene polymers have a broader thermal bonding window than either linear ethylene polymer taken alone. At least one of the linear ethylene polymers useful for blending for forming staple fiber can be a higher alpha-olefin in the C3-C12 range, preferably in the C3-C8 range.

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