IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0726461
(2003-12-03)
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등록번호 |
US-7309668
(2007-12-18)
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발명자
/ 주소 |
- Wilson,Paul G.
- Heine,Darrell R.
- Andrews,John J.
- Hahn,Louis T.
- Kiik,Matti
|
출원인 / 주소 |
- Elk Premium Building Products, Inc.
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
31 |
초록
▼
Disclosed herein are embodiments of a multi-layer nonwoven fiber material, and related methods of manufacturing the material. In one exemplary embodiment, the fiber material includes a first layer of directionally aligned fibers together with a second layer of randomly dispersed fibers dispersed ove
Disclosed herein are embodiments of a multi-layer nonwoven fiber material, and related methods of manufacturing the material. In one exemplary embodiment, the fiber material includes a first layer of directionally aligned fibers together with a second layer of randomly dispersed fibers dispersed over the first layer. Consistent with one exemplary method for manufacturing a nonwoven fiber material, the method includes dispersing a first plurality of fibers horizontally in one or more predetermined directions, as well as dispersing a second plurality of fibers horizontally in random directions. In such an embodiment, the second plurality of fibers is dispersed over the first plurality of fibers. Moreover, an exemplary embodiment of a roofing shingle employing a nonwoven fiber material as described herein is as disclosed.
대표청구항
▼
What is claimed is: 1. A nonwoven fiber article, comprising: a first surface comprising a pattern formed of chopped nonwoven fibers directionally aligned in at least three directions in a plurality of corresponding linear formations on the same linear plane, and thus the linear formations having su
What is claimed is: 1. A nonwoven fiber article, comprising: a first surface comprising a pattern formed of chopped nonwoven fibers directionally aligned in at least three directions in a plurality of corresponding linear formations on the same linear plane, and thus the linear formations having substantially the same thickness as the thickness of the linear plane, the fibers dewatered from a slurry such that fibers within linear formations in one direction are laid randomly interlaced with fibers within linear formations in other directions at intersections of the linear formations; and a second surface opposed to and coextensive with the first surface, the second surface comprising a collection of chopped nonwoven fibers dewatered from the slurry such that they are laid randomly dispersed throughout the second surface. 2. A fiber article according to claim 1, wherein the fibers are selected from the group consisting of: glass fibers, synthetic polymer fibers, ceramic and inorganic fibers, natural fibers, cellulosic fibers, and mixtures of any or all thereof. 3. A fiber article according to claim 1, wherein each of the fibers comprises a diameter ranging from about 0.00001 inches to about 0.0300 inches. 4. A fiber article according to claim 1, wherein each of the fibers comprises a length ranging from about 0.10 inches to about 1.5 inches. 5. A fiber article according to claim 1, further comprising a binder material distributed among the directionally aligned and randomly dispersed fibers. 6. A fiber article according to claim 5, wherein the fiber article comprises about o binder material by weight. 7. A fiber article according to claim 5, wherein the binder material comprises an organic compound. 8. A fiber article according to claim 7, wherein the organic compound is selected from the group consisting of acrylic latex, urea-formaldehyde, SBR latex, acrylic emulsions, and mixtures thereof. 9. A fiber article according to claim 1, wherein the directionally aligned fibers constitute about 50% of the total thickness of the fiber article. 10. A fiber article according to claim 1, wherein the fiber article has a tear-strength under the Elmendorf Tear Test of about 393 g mean tears when the fiber article has a weight of 1.6 lb/sq. and when 15% of the weight of the fiber article is binder material. 11. A fiber article according to claim 10, wherein an overall thickness of the fiber article is about 0.035 inches, and the directionally aligned fibers comprise a thickness in the article of about 0.002 to 0.010 inches. 12. A nonwoven fiber article, comprising: a first surface comprising a pattern formed of chopped nonwoven fibers collectively aligned horizontally dispeised in at least three predetermined directions on the same linear plane, and thus the collections in the predetermined directions having substantially the same thickness as the thickness of the linear plane, the fibers dewatered from a slurry such that fibers collectively dispersed in one of the predetermined directions are laid randomly interlaced with fibers collectively dispersed in others of the predetermined directions at intersections of the collections in the at least three predetermined directions; and a second surface opposed to and coextensive with the first surface, the second surface comprising a collection of chopped nonwoven fibers dewatered from the slurry such that they are laid randomly dispersed throughout the second surface. 13. A fiber article according to claim 12, wherein the fibers are selected from the group consisting of: glass fibers, synthetic polymer fibers, ceramic and inorganic fibers, natural fibers, cellulosic fibers, and mixtures of any or all thereof. 14. A fiber article according to claim 12, wherein each of the fibers comprises a diameter ranging from about 0.00001 inches to about 0.0300 inches. 15. A fiber article according to claim 12, wherein each of the fibers comprises a length ranging from about 0.10 inches to about 1.5 inches. 16. A fiber article according to claim 12, and further comprising a binding material dispersed substantially throughout the fiber article for binding the fibers in their dispersed orientations. 17. A fiber article according to claim 16, wherein the binding material is an organic compound, and wherein the organic compound is selected from the group consisting of acrylic latex, urea-formaldehyde, SBR latex, acrylic emulsions, and mixtures thereof. 18. A fiber article according to claim 12, wherein the fibers comprising the first surface are horizontally dispersed in linear formations extending in the at least three predetermined directions. 19. A fiber article according to claim 12, wherein the fibers of the first surface that are horizontally dispersed in predetermined directions constitute about 50% of the total thickness of the fiber article. 20. A fiber article according to claim 12, wherein the fiber article has a tear-strength under the Elmendorf Tear Test of about 393 g mean tears when the fiber article has a weight of 1.6 lb/sq. and when 15% of the weight of the fiber article is binder material. 21. A fiber article according to claim 20, wherein an overall thickness of the fiber article is about 0.035 inches, and the fibers of the first surface that are horizontally dispersed in predetermined directions comprise a thickness in the article of about 0.002 to 0.010 inches. 22. A fiber article according to claim 12, wherein the fibers of the first surface and the fibers of the second surface are collectively, horizontally dispersed to a substantially uniform thickness. 23. A fiber article according to claim 12, wherein the binding material comprises about 5% to 30% of a total weight of the fiber article.
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