Enhanced thickness fabric and method of making same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-027/04
B32B-017/04
D03D-009/00
출원번호
UP-0742087
(2003-12-19)
등록번호
US-7786026
(2010-09-20)
발명자
/ 주소
Newton, Mark J.
Tucker, Mark W.
출원인 / 주소
Saint-Gobain Technical Fabrics America, Inc.
대리인 / 주소
LLP, Duane Morris
인용정보
피인용 횟수 :
5인용 특허 :
72
초록▼
The present invention provides thickened fabrics and reinforcements for use as a spacer or reinforcement for a matrix system. The fabric includes in a first embodiment a woven fabric comprising weft and warp yarns containing glass fibers. A portion of the weft yarns are undulated, resulting in an in
The present invention provides thickened fabrics and reinforcements for use as a spacer or reinforcement for a matrix system. The fabric includes in a first embodiment a woven fabric comprising weft and warp yarns containing glass fibers. A portion of the weft yarns are undulated, resulting in an increased thickness for the fabric. The fabric is coated with a polymeric resin or bonding agent, for substantially binding the weft yarns in the undulated condition. This invention also includes methods for making such fabric by increasing the thickness of a woven or non-woven material by such methods as applying tension during weaving operations, or using unbalanced yarns.
대표청구항▼
We claim: 1. A reinforcing fabric comprising: a plurality of X axis yarns and Y axis yarns comprising reinforcing fibers, wherein the yarns are combined to form a layer of the fabric; a selected some of the yarns in the layer being subject to tensile force, which applies torque on other yarns in th
We claim: 1. A reinforcing fabric comprising: a plurality of X axis yarns and Y axis yarns comprising reinforcing fibers, wherein the yarns are combined to form a layer of the fabric; a selected some of the yarns in the layer being subject to tensile force, which applies torque on other yarns in the layer, such that said other yarns become undulated from first orientations to second orientations to increase a thickness of the layer by at least about 50% when viewed in a plane of the fabric; and a bonding agent on the layer holding said other yarns in said second orientations. 2. The fabric of claim 1, wherein the bonding agent comprises a polymeric material. 3. The fabric of claim 1, wherein the bonding agent comprises a coating on the yarns. 4. The fabric of claim 1 wherein, the yarns are combined in the layer to form a woven layer, a scrim layer, a mesh layer, a braided layer or a combination thereof. 5. The fabric of claim 1 wherein, the yarns are combined in the layer to form a woven layer or a non-woven layer. 6. The fabric of claim 1 wherein, the yarns comprise glass reinforcing fibers. 7. The fabric of claim 1 wherein, the yarns and the bonding agent are resistant to corrosion. 8. The fabric of claim 1 wherein, said other yarns having moved to the new orientations comprise undulated yarns. 9. The fabric of claim 1 wherein, the weight of said some yarns comprising warp yarns is greater than the weight of said other yarns comprising weft yarns. 10. The fabric of claim 1 wherein, said some yarns comprise warp yarns, said other yarns comprise weft yarns, and the number of said weft yarns is less than that of said warp yarns. 11. The fabric of claim 1 wherein, the weight of said some yarns comprising warp yarns is greater than the weight of said other yarns comprising weft yarns, and the number of said weft yarns is less than that of said warp yarns. 12. The fabric of claim 1 wherein, said some yarns comprise warp yarns, said other yarns comprise weft yarns, and said warp yarns and said weft yarns, respectively, are spaced apart at least about 1 mm. 13. The fabric of claim 1, wherein the fabric is embedded in a matrix material to comprise, a road reinforcement, a soil reinforcement, a cement or gypsum board reinforcement, a water drainage pipe reinforcement, a roofing membrane reinforcement, a shingle reinforcement or a medical cast reinforcement. 14. The fabric of claim 1 wherein, said some yarns comprise warp yarns, and said other yarns having moved to the new orientations comprise undulated weft yarns. 15. The fabric of claim 14 wherein, said warp yarns and said weft yarns, respectively, are spaced apart at least about 1 mm. 16. The fabric of claim 14 wherein, the yarns are combined in the layer to form a woven layer, a scrim layer, a mesh layer, a braided layer or a combination thereof. 17. The fabric of claim 14 wherein, the yarns are combined in the layer to form a woven layer or a non-woven layer. 18. The fabric of claim 14, wherein the bonding agent comprises a polymeric material. 19. The fabric of claim 14, wherein the bonding agent comprises a coating on the yarns. 20. The fabric of claim 14 wherein, the yarns comprise glass reinforcing fibers. 21. The fabric of claim 14 wherein, the yarns and the bonding agent are resistant to corrosion. 22. The fabric of claim 14 wherein, the weight of said warp yarns is greater than the weight of said weft yarns. 23. The fabric of claim 14 wherein, the number of said weft yarns is less than that of said warp yarns.
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