Claims
- 1. A melt-spun polyamide fiber formed of a polyamide mixture comprising:
- (i) at least about 80% by weight of a polyamide, wherein at least 90% of the polyamide is at least one nylon selected from the group consisting of nylon 6, nylon 6/6, copolymers thereof, and combinations thereof; and
- (ii) an additive containing (1) a thermoplastic matrix polymer, (2) silicones in an amount between about 5% to about 20% based on the total weight of the additive, and (3) a platinum complex catalyst; wherein
- said additive is present in said polyamide mixture in an amount between about 0.05% to about 20% by weight of the polyamide mixture so that said silicones are present in the polyamide mixture in an amount less than about 1.0% by weight sufficient to render said polyamide mixture more flame retardant than said polyamide mixture is without the additive, and wherein
- said polyamide fiber has a denier per filament of between about 6 to about 35.
- 2. The fiber of claim 1 wherein said additive is present at about 0.25% to about 20% by weight of the polyamide mixture.
- 3. The fiber of claim 2 wherein said polyamide mixture further comprises about 0.1 to about 5% by blend weight of a zinc compound selected from the group consisting of zinc borate, zinc oxide, zinc hydroxide and mixtures thereof.
- 4. The fiber of claim 1 wherein said polyamide mixture further comprises a zinc compound in an amount between about 0.1 to about 5% by weight of the polyamide mixture.
- 5. The fiber of claim 4, wherein said zinc compound is one selected from the group consisting of zinc borate, zinc oxide, zinc hydroxide and mixtures thereof.
- 6. A melt-spun polyamide fiber formed of a polyamide mixture comprising:
- (i) at least about 80% by weight of a polyamide, wherein at least 90% of the polyamide is at least one nylon selected from the group consisting of nylon 6, nylon 6/6, copolymers thereof, and combinations thereof; and
- (ii) an additive containing (1) a thermoplastic matrix polymer, (2) silicones in an amount between about 5% to about 20% based on the total weight of the additive, and (3) a platinum complex catalyst; wherein
- said additive is present in said polyamide mixture in an amount between about 0.05% to about 20% by weight of the polyamide mixture so that said silicones are present in the polyamide mixture in an amount less than about 0.5% by weight sufficient to render said polyamide mixture more flame retardant than said polyamide mixture is without the additive, and wherein
- said polyamide fiber has a denier per filament of between about 6 to about 35.
- 7. The fiber of claim 6, wherein said additive is present at about 0.25% to about 20% by weight of the polyamide mixture.
- 8. The fiber of claim 6, wherein the polyamide mixture further comprises about 0.1 to about 5% by weight of the polyamide mixture of a zinc compound.
- 9. The fiber of claim 7, wherein the zinc compound is selected from the group consisting of zinc borate, zinc oxide, zinc hydroxide and mixtures thereof.
Parent Case Info
This is a divisional of U.S. patent application Ser. No. 08/109,413 filed on Aug. 19, 1993, now U.S. Pat. No. 5,604,007, which is a continuation of U.S. patent application Ser. No. 07/846,510 filed on Mar. 6, 1992, now abandoned.
US Referenced Citations (19)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0046954 |
Mar 1982 |
EPX |
01168919 |
Jul 1989 |
JPX |
04272216 |
Sep 1992 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Encyclopedia of Textiles, Fibers, and Nonwoven Fabrics, Ed. Martin Grayson, Wiley and Son, 1980. |
Divisions (1)
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Number |
Date |
Country |
Parent |
109413 |
Aug 1993 |
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Continuations (1)
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Number |
Date |
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Parent |
846510 |
Mar 1992 |
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