Poly(trimethylene terephthalate) bicomponent fiber process

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...

Reexamination Certificate

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C264S172130, C264S172140, C264S172150, C264S172170

Reexamination Certificate

active

07147815

ABSTRACT:
A process for the preparation of a side-by-side or eccentric sheath-core bicomponent fiber wherein each component comprises a different poly(trimethylene terephthalate) composition.

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