Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2011-08-02
2011-08-02
Torres-Velazquez, Norca L (Department: 1786)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C442S361000, C442S362000, C442S364000
Reexamination Certificate
active
07989062
ABSTRACT:
A biodegradable nonwoven web comprising substantially continuous multicomponent filaments is provided. The filaments comprise a first component and a second component. The first component contains at least one high-melting point aliphatic polyester having a melting point of from about 160° C. to about 250° C. and the second component contains at least one low-melting point aliphatic polyester. The melting point of the low-melting point aliphatic polyester is at least about 30° C. less than the melting point of the high-melting point aliphatic polyester. The low-melting point aliphatic polyester has a number average molecular weight of from about 30,000 to about 120,000 Daltons, a glass transition temperature of less than about 25° C., and an apparent viscosity of from about 50 to about 215 Pascal-seconds, as determined at a temperature of 160° C. and a shear rate of 1000 sec−1.
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Baratian Stephen Avedis
Chakravarty Jayant
Conrad John Herbert
Martin Jared L.
Topolkaraev Vasily
Dority & Manning P.A.
Kimberly--Clark Worldwide, Inc.
Torres-Velazquez Norca L
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