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US 6,660,794 B2Granted
Glass-filled poly(arylene ether)-polyolefin composition and articles derived therefrom
AssigneeGeneral Electric Company
InventorsAdeyinka Adedeji, Thomas J. Hartle, John C. Haylock
Life of this patent
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Abstract
A reinforced thermoplastic composition includes specific amounts of a poly(arylene ether), a homopolymer of an alkenyl aromatic monomer, a polyolefin, a hydrogenated block copolymer with a high styrene content, an unhydrogenated block copolymer, and, glass fibers. The composition exhibits extremely high stiffness while maintaining high impact strength.
Claims42
A thermoplastic composition, comprising:
- about 10 to about 40 weight percent of a poly(arylene ether);
- about 2 to about 35 weight percent of a homopolymer of an alkenyl aromatic monomer, wherein the weight ratio of the homopolymer of an alkenyl aromatic monomer to the poly(arylene ether) is at least about 1:10;
- about 20 to about 50 weight percent of a polyolefin;
- about 1 to about 12 weight percent of a hydrogenated block copolymer of alkenyl aromatic compound and a conjugated diene having an alkenyl aromatic content of 40 to about 90 weight percent, and wherein the hydrogenated block copolymer comprises a styrene-(ethylene-butylene)-styrene triblock copolymer;
- about 1 to about 15 weight percent of an unhydrogenated block copolymer of alkenyl aromatic compound and a conjugated diene;
- and
- 20 weight percent to about 40 weight percent of glass fibers;
- wherein all weight percents are based on the total weight of the composition.
5 more elements
A thermoplastic composition, comprising:
- about 10 to about 40 weight percent of a poly(arylene ether) that is the polymerization product of 2,6-dimethylphenol, 2,3,6-trimethylphenol, or a combination thereof;
- about 2 to about 35 weight percent of a homopolymer of an alkenyl aromatic monomer, wherein the weight ratio of the homopolymer of an alkenyl aromatic monomer to the poly(arylene ether) is at least about 1:10;
- about 20 to about 50 weight percent of a polyolefin;
- about 0.1 to about 10 weight percent of a polyolefin-graft-cyclic anhydride copolymer;
- about 1 to about 12 weight percent of a hydrogenated block copolymer of alkenyl 1 aromatic compound and a conjugated diene having an alkenyl aromatic content of 40 to about 90 weight percent, and wherein the hydrogenated block copolymer comprises a styrene-(ethylene-butylene)-styrene triblock copolymer;
- about 1 to about 15 weight percent of an unhydrogenated block copolymer of alkenyl aromatic compound and a conjugated diene;
- and
- 20 weight percent to about 40 weight percent of glass fibers;
- wherein all weight percents are based on the total weight of the composition.
6 more elements
A thermoplastic composition, comprising:
- about 10 to about 40 weight percent of a poly(arylene ether) that is the polymerization product of 2,6-dimethylphenol, 2,3,6-trimethylphenol, or a combination thereof;
- about 2 to about 35 weight percent of a homopolymer of an alkenyl aromatic monomer, wherein the weight ratio of the homopolymer of an alkenyl aromatic monomer to the poly(arylene ether) is at least about 1:10;
- about 20 to about 50 weight percent of a polyolefin;
- about 1 to about 12 weight percent of a hydrogenated block copolymer of alkenyl aromatic compound and a conjugated diene having an alkenyl aromatic content of 40 to about 90 weight percent, and wherein the hydrogenated block copolymer comprises a styrene-(ethylene-butylene)-styrene triblock copolymer;
- about 1 to about 15 weight percent of an unhydrogenated block copolymer of alkenyl aromatic compound and a conjugated diene;
- about 1 to about 15 weight percent of an ethylene/alpha-olefin elastomeric copolymer;
- and
- 20 to about 40 weight percent of glass fibers;
- wherein all weight percents are based on the total weight of the composition.
6 more elements
A thermoplastic composition, comprising:
- about 15 to about 35 weight percent of a poly(arylene ether) that is the polymerization product of 2,6-dimethylphenol, 2,3,6-trimethylphenol, or a combination thereof;
- about 3.5 to about 20 weight percent of a homopolymer of a homopolystyrene;
- about 20 to about 40 weight percent of a homopolypropylene;
- about 2 to about 10 weight percent of a styrene-(ethylene-butylene)-styrene triblock copolymer having an alkenyl aromatic content of about 55 to about 75 weight percent;
- about 1 to about 7 weight percent of a styrene-butadiene-styrene triblock copolymer;
- about 1 to about 10 weight percent of an ethylene-butylene rubber, an ethylene-propylene rubber, or a mixture thereof, and
- 20 to about 40 weight percent of glass fibers having a diameter of about 10 to about 20 micrometers;
- wherein all weight percents are based on the total weight of the composition.
5 more elements
A thermoplastic composition, comprising the reaction product of:
- about 10 to about 40 weight percent of a poly(arylene ether);
- about 2 to about 35 weight percent of a homopolymer of an alkenyl aromatic monomer, wherein the weight ratio of the homopolymer of an alkenyl aromatic monomer to the poly(arylene ether) is at least about 1:10;
- about 20 to about 50 weight percent of a polyolefin;
- about 1 to about 12 weight percent of a hydrogenated block copolymer of alkenyl aromatic compound and a conjugated diene having an alkenyl aromatic content of 40 to about 90 weight percent, and wherein the hydrogenated block copolymer comprises a styrene-(ethylene-butylene)-styrene triblock copolymer;
- about 1 to about 15 weight percent of an unhydrogenated block copolymer of alkenyl aromatic compound and a conjugated diene;
- and
- 20 weight percent to about 40 weight percent of glass fibers;
- wherein all weight percents are based on the total weight of the composition.
5 more elements
Dependencies are inferred from the claim text.