Title:
ALLOYS OF IMMISCIBLE POLYMERS
Document Type and Number:
WIPO Patent Application WO2002070803
Kind Code:
A3
Abstract:
An extrudable composition is provided which is made from at least two thermoplastic polymers in a biconstituent construction. One of the thermoplastic polymers is present as a dominant continuous phase and the other one or more polymers are present as a non-continuous phase or phases in an amount of 1.5 weight percent or less. No compatibilizer is necessary. The polymer of the non-continuous phase or phases has a polymer melt temperature higher than 30 DEG C below the polymer melt temperature of the continuous phase. The polymer of the dominant phase may be, for example, polypropylene and the non-continuous phase may be, for example, polyamide. The extrudable composition may be used to produce fibers which are generally between about 5 and 50 microns in diameter. The fibers may be made into nonwoven fabrics.
Inventors:
DELUCIA MARY LUCILLE
HUDSON ROBERT LESLIE
MARMON SAMUEL EDWARD
OFOSU SIMON KWAME
HUDSON ROBERT LESLIE
MARMON SAMUEL EDWARD
OFOSU SIMON KWAME
Application Number:
PCT/US2002/001679
Publication Date:
November 07, 2002
Filing Date:
January 18, 2002
Export Citation:
Assignee:
KIMBERLY CLARK CO (US)
International Classes:
D04H1/54; D04H1/56; (IPC1-7): D04H3/16; D01F6/46; D04H1/56
Domestic Patent References:
| WO1998027256A2 | 1998-06-25 |
Foreign References:
| US4518744A | 1985-05-21 | |||
| EP0394954A2 | 1990-10-31 | |||
| US5970583A | 1999-10-26 |
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