US4537925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphenylene ether blends containing electrostatically bound additive
Assignee: General Electric Co
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Filing: 1984-11-07
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Granted: 1985-08-27
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Expires: 2004-11-07
Abstract
Abstract Compositions of a polyphenylene ether resin, poly(alkenyl aromatic)resins having pendant highly polar ionic groups and additives capable of electrostatic bonding with the polar ionic groups are described. Especially useful as the ionic groups are sulfonate groups and as the additive are antistatic agents. The additives are more stable against losses due to migration, volatilization, washing out and the like, due to the electrostatic attraction to the ionic groups on the poly(alkenyl aromatic)resins.
Inventors
- 👤 Bruce A. Luxon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:23
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L67/00; C08L69/00; C08L71/02; C08L77/00; C08L83/00; Y; Y10; Y10S; Y10S525/00; Y10S525/905; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
48 words
A thermoplastic composition comprising: (a) a polyphenylene ether resin, alone, or together with another non-ionomerized thermoplastic polymer; (b) an alkenyl aromatic resin having pendant polar ionic groups thereon; and (c) one or more property modifying additives bound to the pendant ionic groups of component (b) by electrostatic attraction.
Claim 2
Dependent Claim
48 words
A thermoplastic composition comprising: (a) a polyphenylene ether resin, alone, or together with another non-ionomerized thermoplastic polymer; (b) an alkenyl aromatic resin having pendant polar ionic groups thereon; and (c) one or more property modifying additives bound to the pendant ionic groups of component (b) by electrostatic attraction.
Claim 3
Dependent Claim
21 words
A composition according to claim 1, in which component (a) comprises a polyphenylene ether resin and a non-ionomerized poly(alkenyl aromatic) resin.
Claim 4
Dependent Claim
14 words
A composition according to claim 1, in which the polyphenylene ether resin in poly(2,6-dimethyl-1,4-phenylene)ether.
Claim 5
Dependent Claim
28 words
A composition according to claim 1, in which the polar ionic groups are selected from the groups consisting of strong acid groups, strong basic groups and salts thereof.
Claim 6
Dependent Claim
19 words
A composition according to claim 1, in which the polar ionic groups are comprised of a quaternary ammonium salt.
Claim 7
Dependent Claim
112 words
A composition according to claim 1, in which component (b) comprises units of the formula ##STR4## wherein R 1 and R 1 are selected from the group consisting of lower alkyl or alkenyl groups having from 1 to 6 carbon atoms, and hydrogen; R 3 and R 4 are selected from the group consisting of chloro, bromo, hydrogen and lower alkyl of from 1 to 6 carbon atoms; R 5 and R 6 are selected from the group consisting of hydrogen and lower alkyl or alkenyl groups of from 1 to 6 carbon atoms, or R 5 and R 6 may be concatenated together with hydrocarbyl groups to form a naphthyl group.
Claim 8
Dependent Claim
13 words
A composition according to claim 1, in which component (b) is rubber modified.
Claim 9
Dependent Claim
22 words
A composition according to claim 1, in which component (b) is a sulfonated polystyrene resin or a rubber modified sulfonated polystyrene resin.
Claim 10
Dependent Claim
17 words
A composition according to claim 1, in which component (c) is an antistatic agent or a plasticizer.
Claim 11
Dependent Claim
14 words
A composition according to claim 9, in which component (c) has an amine functionality.
Claim 12
Dependent Claim
34 words
A composition according to claim 9, in which component (c) is of the formula ##STR5## in which R is alkyl having from 4 to 18 carbon atoms, unsubstituted or substituted with halo or aryl.
Claim 13
Dependent Claim
14 words
A composition according to claim 11, in which component (c) comprises methyl-octyl-bis(2-hydroxyethyl)ammonium-para toluene sulfonate.
Claim 14
Dependent Claim
39 words
A composition according to claim 1, comprising from about 5 to about 95 parts by weight of (a), and from about 95 to about 5 parts by weight of (b), based on 100 parts of (a) and (b) combined.
Claim 15
Dependent Claim
30 words
A composition according to claim 13, comprising from about 1 to about 15 parts by weight of component (c), per each 100 parts by weight of (a) and (b) combined.
Claim 16
Dependent Claim
85 words
A thermoplastic composition, comprising: (a) from about 27.8 to about 50.0 parts by weight of a polyphenylene ether resin and from about 64.8 to about 21.4 parts by weight of non-ionomerized polystyrene resin; (b) from about 4.6 to about 17.9 parts by weight of a sulfonated polystyrene resin; and (c) from about 2.8 to about 10.7 parts by weight of an antistatic agent bound to the sulfonated groups of the component (b) by electrostatic attraction, based on 100 parts of (a), (b) and (c) combined.
Claim 17
Dependent Claim
85 words
A thermoplastic composition, comprising: (a) from about 27.8 to about 50.0 parts by weight of a polyphenylene ether resin and from about 64.8 to about 21.4 parts by weight of non-ionomerized polystyrene resin; (b) from about 4.6 to about 17.9 parts by weight of a sulfonated polystyrene resin; and (c) from about 2.8 to about 10.7 parts by weight of an antistatic agent bound to the sulfonated groups of the component (b) by electrostatic attraction, based on 100 parts of (a), (b) and (c) combined.
Claim 18
Dependent Claim
9 words
An article molded from the composition of claim 1.
Claim 19
Dependent Claim
9 words
An article molded from the composition of claim 3.
Claim 20
Dependent Claim
9 words
An article molded from the composition of claim 8.
Claim 21
Dependent Claim
9 words
An article molded from the composition of claim 12.
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) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |