US4889889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trialkylamine salt-functionalized polyphenylene ethers methods for their preparation, and compositions containing them
Assignee: General Electric Co
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Filing: 1988-02-22
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Granted: 1989-12-26
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Expires: 2008-02-22
Abstract
Abstract Functionalized polyphenylene ethers are prepared by mixing with various trialkylammonium maleates or fumarates in the melt, in the absence of free radical initiators. They are useful in the preparation of resinous compositions comprising polyphenylene ethers and polyamides or polyesters. Such resinous compositions preferably also contain impact modifiers.
Inventors
- 👤 John B. Yates, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:54
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126; C08L67/00; C08L71/02; C08L75/00; C08L77/00; C08L81/00; C08L81/04; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
50 words
A method for preparing a resin composition which comprises mixing in the melt at least one polyphenylene ether, at least one polyamide, at least one impact modifying resin for polyphenylene ether-polyamide compositions and at least one functionalizing compound comprising a trialkylamine or tri-(aryl-substituted alkyl)amine salt of maleic or fumaric acid.
Claim 2
Independent Claim
50 words
A method for preparing a resin composition which comprises mixing in the melt at least one polyphenylene ether, at least one polyamide, at least one impact modifying resin for polyphenylene ether-polyamide compositions and at least one functionalizing compound comprising a trialkylamine or tri-(aryl-substituted alkyl)amine salt of maleic or fumaric acid.
Claim 3
Dependent Claim
56 words
A method according to claim 1 which comprises: (A) mixing at least a portion of said polyphenylene ether in the melt, in the absence of free radical initiators, with said functionalizing compound and said impact modifying resin, thereby producing a functionalized polyphenylene ether; and subsequently (B) melt-blending said functionalized polyphenylene ether with at least one polyamide.
Claim 4
Dependent Claim
102 words
A method according to claim 2 wherein the polyamide is polycaprolactam or poly(hexamethylene adipamide) and the polyphenylene ether comprises a plurality of structural units having the formula ##STR6## and in each of said units independently, each Q 1 is independently halogen, primary or secondary lower alkyl, phenyl, haloalkyl, aminoalkyl, hydrocarbonoxy, or halohydrocarbonoxy wherein at least two carbon atoms separate the halogen and oxygen atoms; and each Q 2 is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q 1 ; and wherein the impact modifying resin is blended into the composition during step A.
Claim 5
Dependent Claim
24 words
A method according to claim 3 wherein the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether) and the functionalizing compound is the salt of fumaric acid.
Claim 6
Dependent Claim
13 words
A method according to claim 4 wherein the functionalizing compound is triethylammonium fumarate.
Claim 7
Dependent Claim
13 words
A method according to claim 4 wherein the functionalizing compound is tri-n-butylammonium fumarate.
Claim 8
Dependent Claim
13 words
A method according to claim 4 wherein the functionalizing compound is tribenzylammonium fumarate.
Claim 9
Dependent Claim
34 words
A method according to claim 4 wherein the impact modifying resin is a high impact polystyrene and is present in the amount of about 1-150 parts by weight per 100 parts of polyphenylene ether.
Claim 10
Dependent Claim
40 words
A method according to claim 4 wherein the impact modifying resin is a styrene-conjugated diene diblock or styrene-conjugated diene-styrene triblock copolymer and is present in an amount up to about 50 parts by weight per 100 parts of polyphenylene ether.
Claim 11
Dependent Claim
18 words
A method according to claim 4 wherein the mixing temperature is within the range of about 230°-390° C.
Claim 12
Dependent Claim
12 words
A method according to claim 4 wherein the polyamide is poly(hexamethylene adipamide).
Claim 13
Dependent Claim
9 words
A composition prepared by the method of claim 1.
Claim 14
Dependent Claim
9 words
A composition prepared by the method of claim 4.
Claim 15
Dependent Claim
21 words
A method according to claim 9 wherein the conjugated diene blocks in the impact modifying resin are partly or entirely hydrogenated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-25 | 1993-06-26 | 1993-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-25 | 1997-06-26 | 1997-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-25 | 2001-06-26 | 2001-12-26 | $7700.00 | Window Closed / Lapsed |