US4551494A
Expired / Lapsed
US
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Antistatic polyphenylene ether compositions
Assignee: General Electric Co
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Filing: 1983-10-27
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Granted: 1985-11-05
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Expires: 2003-10-27
Abstract
Abstract A polymer mixture comprising (a) a base resin selected from the group consisting of polyphenylene ether resins and polyphenylene ether modified with alkenyl aromatic resins; and (b) an amount of antistatic agent effective for improving the antistatic character of said polymer mixture wherein said antistatic agent is a compound of the formula R--SO 3 X, where R is an alkyl or aralkyl radical having 5 to 25 carbon atoms and X is an alkali metal.
Inventors
- 👤 Johannes H. G. M. Lohmeijer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:34
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
A polymer mixture consisting essentially of: (a) a base resin selected from the group consisting of polyphenylene ether resins and polyphenylene ether resins modified with alkenyl aromatic resins; and (b) an amount of antistatic agent effective for improving the antistatic character of said polymer mixture wherein said antistatic agent is a compound of the formula R--SO 3 X, where R is an alkyl or aralkyl radical having 5 to 25 carbon atoms and X is an alkali metal; and (c) an amount of a dye effective for compensating for a discoloration of said polymer mixture upon exposure to light wherein said dye bleaches upon exposure to light.
Claim 2
Dependent Claim
107 words
A polymer mixture consisting essentially of: (a) a base resin selected from the group consisting of polyphenylene ether resins and polyphenylene ether resins modified with alkenyl aromatic resins; and (b) an amount of antistatic agent effective for improving the antistatic character of said polymer mixture wherein said antistatic agent is a compound of the formula R--SO 3 X, where R is an alkyl or aralkyl radical having 5 to 25 carbon atoms and X is an alkali metal; and (c) an amount of a dye effective for compensating for a discoloration of said polymer mixture upon exposure to light wherein said dye bleaches upon exposure to light.
Claim 3
Dependent Claim
27 words
A polymer mixture as in claim 1 wherein said antistatic agent is present in an amount of from 0.05 to 5.0% by weight of the polymer mixture.
Claim 4
Dependent Claim
33 words
A polymer as in claim 1 wherein said antistatic of the formula R--SO 3 X includes a mixture of alkyl groups having 12 to 20 carbon atoms and X is a sodium ion.
Claim 5
Dependent Claim
27 words
A polymer mixture as in claim 1 wherein said dye is selected from the group consisting of yellow quinophtalone dye, purple anthrapyridone dye, and mixtures of these.
Claim 6
Dependent Claim
10 words
An article formed from the polymer mixture of claim 1.
References Cited (Backward Citations)
US2733246A
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US3592879A
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JPS541362A
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JPS5437154A
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US4123475A
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US4307009A
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US4315081A
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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) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |