US4035346A
Expired / Lapsed
US
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Conductive N-alkyl polyamide having units containing phosphonium sulfonate groups
Assignee: EIDP Inc
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Filing: 1976-10-22
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Granted: 1977-07-12
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Expires: 1996-10-22
Abstract
Abstract An antistatic synthetic polymer having a T g (NMR) of less than 25° C., a log R s of less than 10 and containing phosphonium sulfonate groups can be used to improve the conductivity of synthetic fiber-forming polymers.
Inventors
- 👤 Harry Vaughn Samuelson
- 👤 Gurdial Singh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:36
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/42; C08G63/00; C08G63/68; C08G63/688; C08G63/6884; C08G63/6886; C08G63/692; C08G63/6924; C08G63/6926; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16; Y10S260/19; Y10S260/21; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
A conductive N-alkyl polyamide having a glass transition temperature measured by nuclear magnetic resonance peak ratio of less than 25° C., a log R s of less than 10 and having units containing phosphonium sulfonate groups of the formula ##STR5## where R 1 , R 2 , R 3 and R 4 represent monovalent hydrocarbon groups with the proviso that R 1 and R 2 may jointly represent an alkylene group, Y is a hydrocarbon group of up to 24 carbon atoms in which any unsaturation is aromatic and which may be interrupted by oxygen, sulfonamide or sulfonyl groups, Z is selected from the group consisting of ##STR6## --O-- and ##STR7## wherein R is hydrogen or an alkyl group of 1-18 carbon atoms and n and m are 1 or 2, said groups being present in an amount of from 0.01 mol % to about 50 mol % based on the total mols of dicarboxylic acid units and/or aminocarboxylic acid units in the polymer chain.
Claim 2
Dependent Claim
165 words
A conductive N-alkyl polyamide having a glass transition temperature measured by nuclear magnetic resonance peak ratio of less than 25° C., a log R s of less than 10 and having units containing phosphonium sulfonate groups of the formula ##STR5## where R 1 , R 2 , R 3 and R 4 represent monovalent hydrocarbon groups with the proviso that R 1 and R 2 may jointly represent an alkylene group, Y is a hydrocarbon group of up to 24 carbon atoms in which any unsaturation is aromatic and which may be interrupted by oxygen, sulfonamide or sulfonyl groups, Z is selected from the group consisting of ##STR6## --O-- and ##STR7## wherein R is hydrogen or an alkyl group of 1-18 carbon atoms and n and m are 1 or 2, said groups being present in an amount of from 0.01 mol % to about 50 mol % based on the total mols of dicarboxylic acid units and/or aminocarboxylic acid units in the polymer chain.
Claim 3
Dependent Claim
19 words
The polymer of claim 1 wherein the unit containing the phosphonium sulfonate group is a phosphonium 3,5-dicarbonylbenzene sulfonate unit.
Claim 4
Dependent Claim
14 words
The polymer of claim 1 having a log R s of less than 8.
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) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |