US4600741A
Expired / Lapsed
US
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Polyphenylene ether-polyamide blends
Assignee: General Electric Co
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Filing: 1984-09-27
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Granted: 1986-07-15
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Expires: 2004-09-27
Abstract
Abstract Novel polyphenylene ether-polyamide compositions having improved compatibility, elongation and impact properties as well as improved processability are prepared comprising a polyphenylene ether, a polyamide and a property improving amount of an acyl modified polyphenylene ether compatibilization agent. These compositions may further comprise alkenyl aromatic polymer or a rubbery polymer.
Inventors
- 👤 David F. Aycock
- 👤 Sai-Pei Ting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:07
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08L67/00; C08L75/00; C08L77/00; C08L81/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
127 words
A thermoplastic composition comprising (a) a first polyphenylene ether resin; (b) a polyamide resin; and (c) a compatibilization agent which is a second polyphenylene ether modified with an acyl functional compound wherein said acyl functional compound contains in its molecule both (i) at least one group having the formula ##STR15## where X is F, Cl, Br, I, OH, ##STR16## where R is H or an alkyl or aryl radical and (ii) at least one carboxylic acid, acid anhydride, acid amide, imido, carboxylic acid ester, amino or hydroxyl group; wherein groups (i) and (ii) are covalently bonded through a divalent hydrocarbon radical and are not both simultaneously a COOH group; and wherein compound (c) is presentin an amount sufficient to effect compatibilization of resinous components (a) and (b).
Claim 2
Dependent Claim
127 words
A thermoplastic composition comprising (a) a first polyphenylene ether resin; (b) a polyamide resin; and (c) a compatibilization agent which is a second polyphenylene ether modified with an acyl functional compound wherein said acyl functional compound contains in its molecule both (i) at least one group having the formula ##STR15## where X is F, Cl, Br, I, OH, ##STR16## where R is H or an alkyl or aryl radical and (ii) at least one carboxylic acid, acid anhydride, acid amide, imido, carboxylic acid ester, amino or hydroxyl group; wherein groups (i) and (ii) are covalently bonded through a divalent hydrocarbon radical and are not both simultaneously a COOH group; and wherein compound (c) is presentin an amount sufficient to effect compatibilization of resinous components (a) and (b).
Claim 3
Dependent Claim
51 words
A composition as in claim 1 wherein the compatibilizing compound (c) is produced by reaction of polyphenylene ether with a molecule containing groups (i) and (ii) and the compatibilizing compound (c) contains between 0.1 and 6 weight percent of the molecule containing groups (i) and (ii) covalently bonded to polyphenylene ether.
Claim 4
Dependent Claim
32 words
A composition as in claim 1 wherein compatibilizing compound (c) is present in an amount of, approximately, 1 to 95 parts by weight per 100 parts of resinous components (a) and (b).
Claim 5
Dependent Claim
29 words
A composition as in claim 1 wherein resinous components (a) and (b) are comprised of 5 to 95 weight percent polyphenylene ether and 95 to 5 weight percent polyamide.
Claim 6
Dependent Claim
21 words
A composition as in claim 4 wherein said compatibilizing compound (c) is first precompounded or prereacted with said polyphenylene ether resin.
Claim 7
Dependent Claim
106 words
A composition as in claim 1 wherein said first or second polyphenylene ether is a homopolymer or copolymer having units with the repeating structural formula: ##STR17## wherein the oxygen ether atom of one unit is connected to the benzene nucleus of the next joining unit, and n is a positive integer of at least 50, 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 and having at least 2 carbon atoms between the halogen atom and the phenyl nucleus.
Claim 8
Dependent Claim
13 words
A composition as in claim 6 wherein said polyphenylene ether is primarily poly(2,6-dimethyl-1,4,phenylene)ether.
Claim 9
Dependent Claim
27 words
A composition as in claim 1 wherein said polyamide is selected from the group consisting of polyamide 6; polyamide 6/6; polyamide 4/6; polyamide 12 and polyamide 6/10.
Claim 10
Dependent Claim
23 words
A composition as in claim 8 wherein said polyamide is selected from the group consisting of polyamide 6/6, polyamide 6, and combinations thereof.
Claim 11
Dependent Claim
45 words
A composition as in claim 1 wherein compound (c) is a reaction product of a first compound selected from the group consisting of chloroformylsuccinic anhydride, chloroethyanolysuccinic anhydride, trimellitic anhydride acid chloride, trimellitic anhydride acid acetic anhydride, and terephthalic acid acid chloride, reacted with polyphenylene ether.
Claim 12
Dependent Claim
20 words
A composition as in claim 1 wherein compound (c) is a reaction of trimellitic anhydride acid chloride and polyphenylene ether.
Claim 13
Dependent Claim
27 words
A composition as in claim 1 which further comprises not more than about 50% by weight based on the total composition of a rubbery high-molecular weight polymer.
Claim 14
Dependent Claim
30 words
A composition as in claim 12 wherein the rubbery high-molecular weight polymer is present in an amount of not more than about 35% by weight based on the total composition.
Claim 15
Dependent Claim
21 words
A composition as in claim 12 wherein the rubbery high-molecular weight polymer is a hydrogenated or non-hydrogenated styrene-butadiene diblock- or triblockcopolymer.
Claim 16
Dependent Claim
26 words
A composition as in claim 1 which further comprises not more than about 50% by weight based on the total composition of an alkenyl aromatic polymer.
Claim 17
Dependent Claim
17 words
A composition as in claim 15 wherein the alkenyl aromatic compound is a styrene homopolymer or copolymer.
Claim 18
Dependent Claim
18 words
A composition as in claim 16 wherein the alkenyl aromatic compound is a rubber modified high impact polystyrene.
Claim 19
Dependent Claim
14 words
A composition as in claim 1 wherein the composition further comprises a phosphite stabilizer.
Claim 20
Dependent Claim
14 words
A composition as in claim 1 wherein the composition further comprises a phosphate compound.
Claim 21
Dependent Claim
30 words
A composition as in claim 1 wherein the composition further comprises a reinforcing amount of an agent selected from the group consisting of glass fiber, carbon fiber, and mineral fillers.
Claim 22
Dependent Claim
21 words
A composition as in claim 8 wherein said polyamide is modified with an impact strength improving amount of an EPDM-g-MA rubber.
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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) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |