US5132365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphenylene ether polyamide blends
Assignee: SABIC Global Technologies BV
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Filing: 1991-04-15
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Granted: 1992-07-21
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Expires: 2011-04-15
Abstract
Abstract The present invention relates to improved polyphenylene ether-polyamide composition wherein the polyamide component comprises a mixture of amorphous and crystalline polyamide. A compatibilizing material is added as well as a modifying resin is added. The composition have good impact strength and water resistance.
Inventors
- 👤 Robert R. Gallucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:34
CPC Classifications
C; C08; C08L; C08L63/00; C08L77/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
An improved polyphenylene ether/polyamide composition comprising: (a) 100 parts by weight of a combination of (i) 5 to 95 percent by weight of a polyphenylene ether component and (ii) 5 to 95 percent by weight of a polyamide component, (b) 0.01 to 30 parts by weight of a compatibilizing agent selected from the group consisting of citric acid, maleic anhydride, trimellitic acid chloride, and trimellitic anhydride acid chloride, and (c) 5 to 100 parts by weight of a modifier resin derived from vinyl aromatic monomers, wherein the improvement comprises employing as the polyamide component a combination of polyamide 6,6 and an amorphous polyamide selected from the group consisting of polyamide 6-(3)-T and polyamide 6,I/T, in a relative weight ratio, said weight ratio of polyamide 6,6 to said amorphous polyamide being from about 9:1 to 1:9.
Claim 2
Dependent Claim
135 words
An improved polyphenylene ether/polyamide composition comprising: (a) 100 parts by weight of a combination of (i) 5 to 95 percent by weight of a polyphenylene ether component and (ii) 5 to 95 percent by weight of a polyamide component, (b) 0.01 to 30 parts by weight of a compatibilizing agent selected from the group consisting of citric acid, maleic anhydride, trimellitic acid chloride, and trimellitic anhydride acid chloride, and (c) 5 to 100 parts by weight of a modifier resin derived from vinyl aromatic monomers, wherein the improvement comprises employing as the polyamide component a combination of polyamide 6,6 and an amorphous polyamide selected from the group consisting of polyamide 6-(3)-T and polyamide 6,I/T, in a relative weight ratio, said weight ratio of polyamide 6,6 to said amorphous polyamide being from about 9:1 to 1:9.
Claim 3
Dependent Claim
15 words
The composition of claim 1, wherein said modifier resin is a styrene-hydrogenated butadiene-styrene tri-block copolymer.
Claim 4
Dependent Claim
95 words
The composition of claim 1, wherein the polyphenylene ether is a homopolymer or a copolymer having units with the repeating structual formula: ##STR3## wherein the oxygen ether atom of one unit is connected to the benzene nucleus of the next and joining unit, and each Q is independently a monovalent substituent selected from a group consisting of hydrogen, halogen, hydrocarbon and hydrocarbonoxy groups free of a tertiary alpha-carbon atom, and halohydrocarbon and halohydrocarbonoxy groups free of a tertiary alpha-carbon atom, and having at least 2 carbon atoms between the halogen atom and the phenyl nucleus.
Claim 5
Dependent Claim
11 words
The composition of claim 3, wherein the polyphenylene ether is poly(2,6-diemthyl-1,4-phenylene)ether.
Claim 6
Dependent Claim
30 words
The composition of claim 1, wherein the combination of polyphenylene ether and polyamide comprises 30 to 70 percent by weight polyphenylene ether and 70 to 30 percent by weight polyamide.
Claim 7
Dependent Claim
36 words
The composition of claim 1, wherein the compatibilizing agent is employed in an amount of from about 0.1 to 10 parts by weight per 100 parts by weight of the admixture of polyphenylene ether and polyamide.
Claim 8
Dependent Claim
36 words
The composition of claim 6, wherein the compatibilizing agent is employed in an amount of from 0.1 to about 5 parts by weight per 100 parts by weight of the admixture of polyphenylene ether and polyamide.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-21 | 1996-01-20 | 1996-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-21 | 2000-01-20 | 2000-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-21 | 2004-01-20 | 2004-07-21 | $7700.00 | Window Closed / Lapsed |