Claims
- 1. A flameproofed thermoplastic molding material containing
- A) 30-98% by weight of a thermoplastic polyamide,
- B) 1-30% by weight of red phosphorus,
- C) 1-15% by weight of a phenolic compound selected from the group consisting of a monophenol of not less than 10 carbon atoms of the formula ##STR7## where R.sup.1 and R.sup.2 are identical or different and are each hydrogen, C.sub.1 -C.sub.16 -alkyl, C.sub.6 -C.sub.18 -aryl or C.sub.7 -C.sub.20 -aralkyl, where each of the radicals may be substituted by at least one C.sub.1 -C.sub.12 -alkyl group or one halogen atom and the aryl radical may be bonded via --O--, -C.sub.1 -C.sub.3 -alkylene- or --SO.sub.2 -- bridge members, or R.sup.1 and R.sup.2 are bonded to one another to form an aromatic or cycloaliphatic carbocyclic ring, with the proviso that both radicals R.sup.1 and R.sup.2 may not be ortho to the phenolic OH group;
- a diphenol of the formula II ##STR8## where R is CH.sub.3, CH.sub.3 --O-- or C.sub.2 H.sub.5 --, m and n independently of one another are each an integer of from 0 to 4, and X is a chemical bond, C.sub.1 -C.sub.7 -alkylene, C.sub.5 - or C.sub.6 -cycloalkylene, O, S, SO, SO.sub.2, CO or O--(CH.sub.2).sub.p --O-- in which p is 2-10, With the proviso that the sum of the aliphatic carbon atoms of all radicals R bonded to a phenol ring is >6; or mixtures thereof,
- D) 0-60% by weight of a fibrous or particulate filler or of a mixture thereof and
- E) 0-30% by weight of an elastomeric polymer.
- 2. A flameproofed thermoplastic molding material as claimed in claim 1, containing, as component C), a monophenol of not less than 10 carbon atoms of the formula I ##STR9## where R.sup.1 and R.sup.2 are identical or different and are each hydrogen, C.sub.1 -C.sub.16 -alkyl, C.sub.6 -C.sub.18 -aryl or C.sub.7 -C.sub.20 -aralkyl, where each of the radicals may be substituted by at least one C.sub.1 -C.sub.12 -alkyl group or one halogen atom and the aryl radical may be bonded via --O--, -C.sub.1 -C.sub.3 -alkylene- or --SO.sub.2 -- bridge members, or R.sup.1 and R.sup.2 are bonded to one another to form an aromatic or cycloaliphatic carbocyclic ring, with the proviso that both radicals R.sup.1 and R.sup.2 may not be ortho to the phenolic OH group.
- 3. A flameproofed thermoplastic molding material as claimed in claim 1, containing, as component C), a diphenol of the formula II ##STR10## where R is CH.sub.3 --, CH.sub.3 --O-- or C.sub.2 H.sub.5 --, m and n independently of one another are each an integer of from 0 to 4, and X is a chemical bond, C.sub.1 -C.sub.7 -alkylene, C.sub.5 - or C.sub.6 -cycloalkylene, O, S, SO, SO.sub.2, CO or O--(CH.sub.2).sub.p --O-- in which p is 2-10, with the proviso that the sum of the aliphatic carbon atoms of all radicals R bonded to a phenol ring is <6.
- 4. A flameproofed thermoplastic molding material as claimed in claim 1, containing
- 40-97% by weight of A),
- 1-30% by weight of B),
- 1-12% by weight of C) and
- 1-50% by weight of D).
- 5. A flameproofed thermoplastic molding material as claimed is claim 1, containing, as component A), a partly aromatic, semicrystalline copolyamide having a triamine content of less than 0.5% by weight and based on
- (A.sub.1) 20-90% by weight of units which are derived from terephthalic acid and hexamethylenediamine,
- (A.sub.2) 0-50% by weight of units which are derived from .epsilon.-caprolactam,
- (A.sub.3) 0-80% by weight of units which are derived from adipic acid and hexamethylenediamine and
- (A.sub.4) 0-40% by weight of further polyamide-forming monomers,
- the amount of components (A.sub.2) or (A.sub.3) or (A.sub.4) or of mixtures thereof being at least 10% by weight.
- 6. A flameproofed thermoplastic molding material as claimed in claim 1, containing, as monophenolic compound C), tetrahydronaphthol, 2-butylphenol (sec or tert), 4-tert-butylphenol, thymol, 4-tert-pentylphenol, octylphenol (mixture), nonylphenol (mixture), dodecylphenol (mixture), 4-hydroxybiphenyl, 2-hydroxybiphenyl, alkyl-substituted hydroxybiphenyls, 1-naphthol, 2-naphthol, benzylphenol(s), benzylcresol(s), 2-phenyl-2-(4-hydroxyphenyl)-propane, 4-hydroxydiphenyl sulfone, 4-hydroxydiphenyl ether, 2- or 4-cyclohexylphenols or mixtures thereof.
- 7. A flameproofed thermoplastic molding material as in claim 1, containing a diphenolic compound C) in which R is methyl, m and n are each from 0 to 2 and X is --CH.sub.2 --, --C (CH.sub.3 ).sub.2 -- or --SO.sub.2 --.
- 8. A molding obtainable from a flameproofed thermoplastic molding material as claimed in claim 1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
41 21 261.4 |
Jun 1991 |
DEX |
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Parent Case Info
This application is a continuation-in-part of Ser. No. 08/091,088, filed Jul. 14, 1993, abandoned, which is a continuation of Ser. No. 07/904,923, filed Jun. 26, 1992, abandoned.
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4616053 |
Schultz et al. |
Oct 1986 |
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4628069 |
Meyer et al. |
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4745146 |
Meyer et al. |
May 1988 |
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5049599 |
Steiert et al. |
Sep 1991 |
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5260359 |
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112542 |
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DEX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
904923 |
Jun 1992 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
91088 |
Jul 1993 |
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