Claims
- 1. A fiber, comprising:a polyurethaneurea and layers delaminated from a lamellar clay, said layers being dispersed in said polyurethaneurea.
- 2. The fiber of claim 1 further comprising a dye.
- 3. The fiber of claim 2 wherein the dye is selected from the group consisting of: acid dye, premetallized dye, cationic dye, direct dye, disperse dye, and reactive dye.
- 4. The fiber of claim 1 wherein the fiber is uncolored.
- 5. The fiber of claim 1 wherein the polyurethaneurea comprises 85% by weight of a segmented polyurethane.
- 6. The fiber of claim 1 wherein the lamellar clay is at least one selected from the group consisting of: smectite clays comprising montmorillonite, saponite, beidellite, nontronite, hectorite, stevensite, bentonite; and swellable mica.
- 7. The fiber of claim 6 wherein the lamellar clay has a cation exchange capacity of about 50 to about 200 meq/100 g.
- 8. The fiber of claim 1 wherein the lamellar clay is modified to provide an interlayer distance of said layers of at least 17 Å.
- 9. The fiber of claim 8 wherein the lamellar clay is modified with an organic onium ion.
- 10. The fiber of claim 9 wherein the organic onium ion is at least one selected from the group consisting of: a primary ammonium ion, a secondary ammonium ion, a tertiary ammonium ion, a quaternary ammonium ion, a pyridinium ion, an imidazolinium ion, a phosphonium ion and a sulphonium ion.
- 11. The fiber of claim 1 wherein the layers are individual layers or are groups numbering less than five layers on average.
- 12. The fiber of claim 1 wherein the modified clay and the polyurethaneurea are mixed in a ratio of about 0.1 to about 12 parts by weight for the clay to about 88 to about 99.9 parts by weight for the polyurethaneurea.
Parent Case Info
This application claims the benefit of Provisional Application No. 60/020,298 filed Jun. 24, 1996.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/US97/10887 |
|
WO |
00 |
12/17/1998 |
12/17/1998 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO97/49847 |
12/31/1997 |
WO |
A |
US Referenced Citations (20)
Foreign Referenced Citations (7)
Number |
Date |
Country |
0 619 182 A1 |
Oct 1994 |
EP |
08 041315 |
Feb 1996 |
JP |
WO 9304118 |
Mar 1993 |
WO |
WO 9304117 |
Mar 1993 |
WO |
WO 9311190 |
Jun 1993 |
WO |
WO 9429499 |
Dec 1994 |
WO |
WO 9709473 |
Mar 1997 |
WO |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/020298 |
Jun 1996 |
US |