IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0331197
(2002-12-27)
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발명자
/ 주소 |
- Tsai, Fu-Jya Daniel
- Wertheim, Brigitte C.
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출원인 / 주소 |
- Kimberly-Clark Worldwide, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
50 인용 특허 :
3 |
초록
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A biodegradable hydrophilic binder fiber. These fibers may be produced by co-spinning an aliphatic polyester material in a side-by-side configuration with a polylactide polymer to obtain a fiber with improved material attributes. A multicarboxylic acid may be incorporated into either or both compone
A biodegradable hydrophilic binder fiber. These fibers may be produced by co-spinning an aliphatic polyester material in a side-by-side configuration with a polylactide polymer to obtain a fiber with improved material attributes. A multicarboxylic acid may be incorporated into either or both components of the fiber. The aliphatic polyester polymer may be selected from a polybutylene succinate polymer, a polybutylene succinate-co-adipate polymer, or a blend of these polymers. The biodegradable bicomponent fiber exhibits substantial biodegradable properties, yet has improved thermal stability and has significantly reduced shrinkage. The bicomponent fiber may be used in a disposable absorbent product intended for the absorption of fluids such as body fluids.
대표청구항
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1. A bicomponent binder fiber comprising a first component containing a blend of an aliphatic polyester material and a multicarboxylic acid, and a second component of a polylactide polymer in a side-by-side configuration;wherein the bicomponent binder fiber exhibits a heat shrinkage value that is le
1. A bicomponent binder fiber comprising a first component containing a blend of an aliphatic polyester material and a multicarboxylic acid, and a second component of a polylactide polymer in a side-by-side configuration;wherein the bicomponent binder fiber exhibits a heat shrinkage value that is less than about 15%; further wherein the weight ratio of the aliphatic polyester polymer to the polylactide polymer will range from about 1 to 1 to about 10 to 1. 2. The bicomponent binder fiber of claim 1, wherein the bicomponent binder fiber exhibits a heat shrinkage value that is less than about 10%.3. The bicomponent binder fiber of claim 1, wherein the bicomponent binder fiber exhibits a heat shrinkage value that is less than about 5%.4. The bicomponent binder fiber of claim 1, wherein the aliphatic polyester polymer is selected from a polybutylene succinate polymer, a polybutylene succinate-co-adipate polymer, a polycaprolactone polymer, a mixture of such polymers, and a copolymer of such polymers.5. The bicomponent binder fiber of claim 4, wherein the aliphatic polyester polymer is a polybutylene succinate polymer.6. The bicomponent binder fiber of claim 4, wherein the aliphatic polyester polymer is a polybutylene succinate-co-adipate polymer.7. The bicomponent binder fiber of claim 4, wherein the aliphatic polyester polymer is a polycaprolactone polymer.8. The bicomponent binder fiber of claim 1, wherein the polylactide polymer is selected from polylactide or poly(lactic acid) having different L:D ratios.9. The bicomponent binder fiber of claim 1, wherein the multicarboxylic acid is selected from succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and a mixture of such acids.10. The bicomponent binder fiber of claim 1, wherein the multicarboxylic acid is present in the aliphatic polyester polymer in a weight amount that is between about 0.1 weight percent to about 10 weight percent.11. The bicomponent binder fiber of claim 10, wherein the multicarboxylic acid is present in the aliphatic polyester polymer in a weight amount that is between about 0.1 weight percent to about 5 weight percent.12. The bicomponent binder fiber of claim 11, wherein the multicarboxylic acid is present in the aliphatic polyester polymer in a weight amount that is between about 0.1 weight percent to about 3 weight percent.13. The bicomponent binder fiber of claim 1, further comprising a multicarboxylic acid mixed with the polylactide polymer.14. The bicomponent binder fiber of claim 13, wherein the multicarboxylic acid is selected from succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and a mixture of such acids.15. The bicomponent binder fiber of claim 13, wherein the multicarboxylic acid is present in the polylactide polymer in a weight amount that is between about 1 weight percent to about 15 weight percent.16. The bicomponent binder fiber of claim 15, wherein the multicarboxylic acid is present in the polylactide polymer in a weight amount that is between about 1 weight percent to about 10 weight percent.17. The bicomponent binder fiber of claim 16, wherein the multicarboxylic acid is present in the polylactide polymer in a weight amount that is between about 2 weight percent to about 5 weight percent.18. The bicomponent binder fiber of claim 1, further comprising a multicarboxylic acid mixed with the aliphatic polyester polymer and with the polylactide polymer.19. The bicomponent binder fiber of claim 18, wherein the multicarboxylic acid is selected from succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and a mixture of such acids.20. The bicomponent binder fiber of claim 18, wherein the multicarboxylic acid is present in the aliphatic polyester polymer in a weight amount that is between about 0.1 weight percent to about 10 weight percent and wherein the multicarboxylic acid is present in the polylactide polymer in a weight amount that is between about 1 weight percent to about 15 weight percent.21. The bicomponent binder fiber of claim 20, wherein the multicarboxylic acid is present in the aliphatic polyester polymer in a weight amount that is between about 0.1 weight percent to about 5 weight percent and wherein the multicarboxylic acid is present in the polylactide polymer in a weight amount that is between about 1 weight percent to about 10 weight percent.22. The bicomponent binder fiber of claim 21, wherein the multicarboxylic acid is present in the aliphatic polyester polymer in a weight amount that is between about 0.1 weight percent to about 3 weight percent and wherein the multicarboxylic acid is present in the polylactide polymer in a weight amount that is between about 2 weight percent to about 5 weight percent.23. The bicomponent binder fiber of claim 1, wherein the weight ratio of the aliphatic polyester polymer to the polylactide polymer will range from about 1.5 to 1 to about 9 to 1.24. The bicomponent binder fiber of claim 23, wherein the weight ratio of the aliphatic polyester polymer to the polylactide polymer will range from about 2 to 1 to about 8 to 1.25. The bicomponent binder fiber of claim 24, wherein the weight ratio of the aliphatic polyester polymer to the polylactide polymer will range from about 3 to 1 to about 7 to 1.26. The bicomponent binder fiber of claim 25, wherein the weight ratio of the aliphatic polyester polymer to the polylactide polymer will range from about 4 to 1 to about 6 to 1.
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