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US 6,475,618 B1Granted
Compositions for enhanced thermal bonding
AssigneeKimberly-Clark Worldwide, Inc.
InventorsNina Cecilia Griffith, Xin Ning, Bryon P. Day, Maya Aroch
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Abstract
A composition including an aromatic polyester and a copolyester having a lower melting point than the aromatic polyester. The aromatic polyester and the copolyester can be blended together to form fibers and fibrous webs. The composition can be thermally bonded at a temperature below the melting point of the aromatic polyester.
Claims1
A fiber comprising a blend of an aliphatic copolyester and an aromatic polyester on an outer surface of the fiber, wherein the aliphatic copolyester has a lower melting point than the aromatic polyester;
- the fiber having a first component and a second component in a side-by-side arrangement, wherein the first component includes the aliphatic copolyester and the aromatic polyester and the second component includes a polymer.
Dependencies are inferred from the claim text.