Claims
- 1. A fiber-forming polymer blend, comprising:
- a) from about 70 to about 99.85% by weight of a polyamide;
- b) from about 1 to about 5% by weight of an amorphous copolymer derived from hexamethylenediamine. isophthalic acid (I), and terephthalic acid (T) miscible with the polyamide; and
- c) from about 10 to about 25% by weight of an amorphous poly(phenylene oxide) polymer immiscible with the polyamide.
- 2. The fiber-forming polymer blend according to claim 1, wherein said polyamide (a) is selected from the group consisting of nylon 6 and nylon 6,6.
- 3. The fiber-forming polymer blend according to claim 1 or 2, wherein said isophthalic acid (I) and said terephthalic acid (T) are each present in an amount to provide a ratio (I):(T) of from 0.5:1 to 2:1.
- 4. The fiber-forming polymer blend according to claim 2, wherein said poly(phenylene oxide) polymer is modified by melt mixing with an .alpha.,.beta.-unsaturated compound.
- 5. The fiber-forming polymer blend according to claim 4, wherein said .alpha.,.beta.-unsaturated compound is selected from the group consisting of .alpha.,.beta.-unsaturated aliphatic mono- and dicarboxylic acids, -esters, -amides and -imides and aromatic vinyl monomers.
Parent Case Info
This is a divisional of application Ser. No. 08/319,723, now U.S. Pat. No. 5,554,149 filed Oct. 7, 1994, which in turn is a continuation of application Ser. No. 08/012,821 filed Feb. 3, 1993 (now abandoned).
US Referenced Citations (10)
Foreign Referenced Citations (4)
Number |
Date |
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0260123 |
Mar 1988 |
EPX |
0344590 |
May 1995 |
EPX |
3644208 |
Jul 1987 |
DEX |
WO9313251 |
Jul 1993 |
WOX |
Non-Patent Literature Citations (2)
Entry |
Derwent Abstracts 116:237305e: Kawakami et al, JP 04-02814 [92 02814] (1992). |
Database WPI, Section Ch, Week 8136, Derwent Publications Ltd., London, GB; Class A, AN 81-6528D & JP-A-56 091 011 (Teijin KK) 23 Jul. 1981--Abstract. |
Divisions (1)
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319723 |
Oct 1994 |
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Continuations (1)
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12821 |
Feb 1993 |
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