Fibers comprising polyhydroxyalkanoate copolymer/polylactic...

Details Fibers comprising polyhydroxyalkanoate copolymer/polylactic... Fibers comprising polyhydroxyalkanoate copolymer/polylactic...

2005-06-14

2005-06-14

Robertson, Jeffrey B. (Department: 1712)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Including strand or fiber material which is a monofilament...

C442S050000, C442S051000, C442S327000, C428S373000, C428S395000, C525S411000, C525S938000

Reexamination Certificate

active

06905987

ABSTRACT:
Environmentally degradable melt spun fibers comprising a polyhydroxyalkanoate copolymer and a polylactic acid polymer or copolymer are disclosed. A preferred configuration of the present invention is directed to environmentally degradable fibers comprising a sheath/core structure where the core comprises a biodegradable polyhydroxyalkanoate copolymer and the sheath comprises a polymer or copolymer of polylactic acid. Nonwoven webs and disposable articles comprising the environmentally degradable fibers are also disclosed.

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Pending Application of Noda et al., Ser. No. 10/051,724, filed Jan. 17, 2002. (8840).

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