| 摘要 |
A method for making a biodegradable thermoplastic composition. The thermoplastic composition may be used in methods to produce multi-component fibers and non-woven materials that demonstrate a higher contact angle hysteresis, quicker intake times, and improved skin dryness as compared to prior art materials. In addition, biodisintegratable nonwoven materials made according to the present invention also exhibit high wetting rates, which is unexpected based upon the higher hysteresis values. The nonwoven material may be produced using thermoplastic compositions which comprise an unreacted mixture of an aliphatic polyester polymer as a continuous phase, polyolefin microfibers as a discontinuous phase encased within the aliphatic polyester polymer continuous phase, and a compatibilizer for the aliphatic polyester polymer and the polyolefin microfibers. The multicomponent fiber exhibits substantial biodisintegratable properties and good wettability yet is easily processed. The biodisintegratable nonwoven materials may be used in a disposable absorbent product intended for the absorption of fluids such as body fluids. |
