Fiber-reinforced polyphenylene ether molding compositions and process for their preparation
First Claim
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1. A fiber-reinforced thermoplastic molding composition comprising as ingredients:
- a) 97 to 50% by weight, relative to the sum of (a) and (b), moldable thermoplastic ingredients, the moldable thermoplastic ingredients in the molding composition consisting of a mixture of 30 to 100 parts by weight of a polyphenylene ether, 0 to 70 parts by weight of a styrene polymer which is polystyrene, impact-modified polystyrene or styrene-butadiene copolymer, 0 to 10 parts by weight of a polyoctenylene and 0.1 to 2.5 parts by weight of a compound of formula (I) or (II)
space="preserve" listing-type="equation">R.sub.1 --CO--CR.sup.2 ═
CR.sup.3 --CO--R.sup.4 (I)
space="preserve" listing-type="equation">R.sup.1 --CO--CR.sup.2 ═
CR.sup.3.sub.2 (I) in which R1 and R4 are hydroxyl, aryloxy an/or alkoxy groups having up to 12 carbon atoms or together are --O-- or --NR5 --, R2 and R3 denote hydrogen or an alkyl or cycloalkyl group having up to 12 carbon atoms, an alkyl group substituted by the radical COR1, an aryl group, chlorine or together an alkylene group having up to 12 carbon atoms, wherein R5 is hydrogen or an alkyl, aralkyl or aryl group, each having up to 12 carbon atoms, a compound which under conditions of mixing in the melt which may be formed during the compounding of the ingredients of the thermoplastic molding composition is converted to a compound of formula (I) or (II) by known reactions, or a compound which is a copolymer of a compound of formula (I) or (II) with a vinyl aromatic, andb) 3 to 50% by weight of carbon fibers and/or glass fibers whose surfaces bear functional groups which are capable of entering into chemical coupling reactions with a compound of formula (I) or (II) or with said copolymer of a compound of formula (I) or (II).
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Abstract
A fiber-reinforced molding composition, comprising:
a) 97 to 50% by weight, relative to the sum of (a) and (b), of a mixture of 30 to 100 parts by weight of a polyphenylene ether, 0 to 70 parts by weight of a styrene polymer, 0 to 10 parts by weight of a polyoctenylene and 0.1 to 2.5 parts by weight of an α,β-unsaturated carboxylic acid derivative or a precursor thereof;
b) 3 to 50% by weight of carbon fibers and/or glass fibers whose surfaces bear functional groups which are capable of entering into chemical coupling reactions with the α,β-unsaturated carboxylic acid derivatives; and optionally
c) dyes, pigments, plasticizers, flame retardant additives, processing auxiliaries, other customary additives or combinations thereof.
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Citations
13 Claims
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1. A fiber-reinforced thermoplastic molding composition comprising as ingredients:
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a) 97 to 50% by weight, relative to the sum of (a) and (b), moldable thermoplastic ingredients, the moldable thermoplastic ingredients in the molding composition consisting of a mixture of 30 to 100 parts by weight of a polyphenylene ether, 0 to 70 parts by weight of a styrene polymer which is polystyrene, impact-modified polystyrene or styrene-butadiene copolymer, 0 to 10 parts by weight of a polyoctenylene and 0.1 to 2.5 parts by weight of a compound of formula (I) or (II)
space="preserve" listing-type="equation">R.sub.1 --CO--CR.sup.2 ═
CR.sup.3 --CO--R.sup.4 (I)
space="preserve" listing-type="equation">R.sup.1 --CO--CR.sup.2 ═
CR.sup.3.sub.2 (I)in which R1 and R4 are hydroxyl, aryloxy an/or alkoxy groups having up to 12 carbon atoms or together are --O-- or --NR5 --, R2 and R3 denote hydrogen or an alkyl or cycloalkyl group having up to 12 carbon atoms, an alkyl group substituted by the radical COR1, an aryl group, chlorine or together an alkylene group having up to 12 carbon atoms, wherein R5 is hydrogen or an alkyl, aralkyl or aryl group, each having up to 12 carbon atoms, a compound which under conditions of mixing in the melt which may be formed during the compounding of the ingredients of the thermoplastic molding composition is converted to a compound of formula (I) or (II) by known reactions, or a compound which is a copolymer of a compound of formula (I) or (II) with a vinyl aromatic, and b) 3 to 50% by weight of carbon fibers and/or glass fibers whose surfaces bear functional groups which are capable of entering into chemical coupling reactions with a compound of formula (I) or (II) or with said copolymer of a compound of formula (I) or (II). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification
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Current AssigneeHuels Aktiengesellschaft (Rag-Stiftung)
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Original AssigneeHuels Aktiengesellschaft (Rag-Stiftung)
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InventorsSchmidt, Friedrich G., Baron, Christian, Grosse-Puppendahl, Thomas
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Primary Examiner(s)Michl, Paul R.
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Assistant Examiner(s)SZEKELY, PETER A
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Application NumberUS07/865,631Time in Patent Office859 DaysField of Search523/213, 523/214, 523/215, 523/508, 524/112, 524/321, 524/494, 524/495, 524/496, 524/847, 524/314, 524/210, 524/104, 524/315, 525/68, 525/92, 525/133, 525/152US Class Current524/314CPC Class CodesC08K 7/06 ElementsC08K 7/14 GlassC08K 9/04 Ingredients treated with or...C08L 2666/02 Organic macromolecular comp...C08L 2666/22 Macromolecular compounds no...C08L 65/00 Compositions of macromolecu...C08L 71/12 Polyphenylene oxidesC08L 71/123 not modified by chemical af...
