Enhanced char integrity fabric
AssigneeMilliken & Company
InventorsJohn L. Sanchez, Lei Zhang
Life of this patent
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Abstract
An enhanced char integrity fabric containing a plurality of warp yarns in the warp direction and a plurality of weft yarns in the weft direction. The warp yarns and the weft yarns contain thermoplastic fibers having a melting temperature less than about 300° C. The enhanced char integrity fabric also contains a plurality of char reinforcing yarns in at least the warp direction. The char reinforcing yarns have a different composition than the warp yarns and the weft yarns and contain non-melting fibers having a decomposition temperature greater than 300° C. The char reinforcing yarns are in an amount of less than about 30% wt of the warp yarns and the tensile strength of the char reinforcing yarns is about equal or less than the tensile strength of the warp yarns.
Claims20
An enhanced char integrity fabric having a warp direction and a weft direction, wherein the fabric comprises:
- a plurality of warp yarns in the warp direction, wherein the warp yarns comprise thermoplastic fibers having a melting temperature less than about 300° C.;
- a plurality of weft yarns in the weft direction, wherein the weft yarns comprise thermoplastic fibers having a melting temperature less than about 300° C.;
- and,
- a plurality of char reinforcing yarns in the warp direction, wherein the char reinforcing yarns have a different composition than the warp yarns and a different composition than the weft yarns, wherein the char reinforcing yarns comprise non-melting fibers having a decomposition temperature greater than 300° C., wherein the char reinforcing yarns are in an amount of less than about 30% wt of the warp yarns, and wherein the tensile strength of the char reinforcing yarns is about equal or less than the tensile strength of the warp yarns.
An enhanced char integrity fabric having a warp direction and a weft direction, wherein the fabric comprises:
- a plurality of warp yarns in the warp direction, wherein the warp yarns comprise thermoplastic fibers having a melting temperature less than about 300° C.;
- a plurality of weft yarns in the weft direction, wherein the weft yarns comprise thermoplastic fibers having a melting temperature less than about 300° C.;
- and,
- a plurality of char reinforcing yarns in the weft direction, wherein the char reinforcing yarns have a different composition than the warp yarns and a different composition than the weft yarns, wherein the char reinforcing yarns comprise non-melting fibers having a decomposition temperature greater than 300° C., wherein the char reinforcing yarns are in an amount of less than about 30% wt of the warp yarns, and wherein the tensile strength of the char reinforcing yarns is about equal or less than the tensile strength of the warp yarns.
An enhanced char integrity fabric having a warp direction and a weft direction, wherein the fabric comprises:
- a plurality of warp yarns in the warp direction, wherein the warp yarns comprise thermoplastic fibers having a melting temperature less than about 300° C.;
- a plurality of weft yarns in the weft direction, wherein the weft yarns comprise thermoplastic fibers having a melting temperature less than about 300° C.,
- a plurality of char reinforcing yarns in the warp direction and the weft direction, wherein the char reinforcing yarns have a different composition than the warp yarns and a different composition than the weft yarns, wherein the char reinforcing yarns comprise non-melting fibers having a decomposition temperature greater than 300° C., wherein the char reinforcing yarns are in an amount of less than about 30% wt of the warp yarns, and wherein the tensile strength of the char reinforcing yarns is about equal or less than the tensile strength of the warp yarns;
- and,
- a plurality of ripstop yarns in the warp direction and the weft direction, wherein the ripstop yarns have a different composition than the warp yarns, the weft yarns, and the char reinforcement yarns, and wherein the tensile strength of the ripstop yarns is at least 20% greater than the tensile strength of the warp yarns and the weft yarns.
Dependencies are inferred from the claim text.