Patent US4123475A successfully refreshed from Google Patents.
US4123475A
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US
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Antistatic polyphenylene ether compositions
Assignee: General Electric Co
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Filing: 1977-12-28
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Granted: 1978-10-31
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Expires: 1997-12-28
Abstract
Abstract Thermoplastic compositions comprising a polyphenylene ether resin alone or in admixture with a styrene resin are rendered resistant to the accumulation of surface electrostatic charges by the inclusion, in a minor, effective amount, of an antistatic agent consisting of a mixture of triethanolamine, toluene sulfonic acid and sodium lauryl sulfate. Flame retardant embodiments are also provided.
Inventors
- 👤 Visvaldis Abolins
- 👤 Arthur Katchman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:10
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08K; C08K5/00; C08K5/0008; C08K5/0075; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L71/02; C08L71/03; C08L75/00; C08L81/00; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16; Y10S260/21; Y10S260/24; Y10S524/00; Y10S524/91; Y10S524/912; Y10S524/913
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
40 words
An antistatic thermoplastic composition which comprises: (a) a polyphenylene ether resin with or without a styrene resin, and (b) a minor, effective amount of an antistatic agent consisting of a mixture of triethanolamine, toluene sulfonic acid and sodium lauryl sulfate.
Claim 2
Dependent Claim
40 words
An antistatic thermoplastic composition which comprises: (a) a polyphenylene ether resin with or without a styrene resin, and (b) a minor, effective amount of an antistatic agent consisting of a mixture of triethanolamine, toluene sulfonic acid and sodium lauryl sulfate.
Claim 3
Dependent Claim
29 words
A composition as defined in claim 1 wherein component (b) is present in an amount of at least about 3 parts by weight per one hundred parts of (a).
Claim 4
Dependent Claim
16 words
A composition as defined in claim 1 wherein said toluene sulfonic acid is para-toluene sulfonic acid.
Claim 5
Dependent Claim
27 words
A composition as defined in claim 1 wherein in component (b) the weight ratio of triethanolamine and toluene sulfonic acid to sodium lauryl sulfate is about 2:1.
Claim 6
Dependent Claim
104 words
A composition as defined in claim 1 wherein the polyphenylene ether resin of (a) has the formula: ##STR3## wherein the oxygen ether atom of one unit is connected to the benzene nucleus of the next adjoining unit, n is a positive integer and is at least 50, and each Q is a monovalent substituent selected from the group consisting of hydrogen, halogen hydrocarbon radicals free of a tertiary alpha-carbon atom, halohydrocarbon radicals having at least two carbon atoms between the halogen atom and the phenyl nucleus, hydrocarbonoxy radicals and halohydrocarbonoxy radicals having at least two carbon atoms between the halogen atom and phenyl nucleus.
Claim 7
Dependent Claim
15 words
A composition as defined in claim 5 wherein said polyphenylene ether resin is poly(2,6-dimethyl-1,4-phenylene) ether.
Claim 8
Dependent Claim
20 words
A composition as defined in claim 1 wherein the styrene resin of (a) is a rubber modified high impact polystyrene.
Claim 9
Dependent Claim
17 words
A composition as defined in claim 1 which also includes an odor retardant amount of zinc oxide.
Claim 10
Dependent Claim
19 words
A composition as defined in claim 1 which also includes a flame retardant amount of a flame retardant agent.
References Cited (Backward Citations)
US3383435A
Cited
US4038343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |