MULTICOMPONENT DEGRADABLE MATERIALS AND USE

摘要

In general, the current disclosure relates to multicomponent fibers that have accelerated degradation in water in low temperature conditions, and their various industrial, medical and consumer product uses. Such materials are especially useful for uses in subterranean wells in oil and gas production. In some embodiments, the compositions of materials have accelerated degradation even at Ultra Low Temperature (“ULT”) (≦60° C.) in subterranean formations.

主权项

1. A degradable multicomponent fiber, comprising:
a) a degradable polymer selected from the group consisting of polylactic acid (PLA), polycarprolactone, polyglycolic acid, polylactic-co-polyglcolic acid, or a mixture thereof; b) a water soluble polymer or a hydrocarbon soluble polymer; and c) a reactive filler mixed with component a, that shortens the degradation time of said component when mixed therewith; d) wherein component a is different than component b; and e) said multicomponent fiber having a diameter of less than 100 micrometers, having a configuration selected from the group consisting of sheath-core, islands-in-the-sea, ribbon, segmented pie, side-by-side, and combinations thereof, and said fiber being degradable in 30 days or less at 60° C.