Patent US3972855A successfully refreshed from Google Patents.
US3972855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium compounds and treatment of plastic and other materials therewith
Assignee: Nouryon Surface Chemistry AB
•
Filing: 1973-12-10
•
Granted: 1976-08-03
•
Expires: 1993-12-10
Abstract
Abstract Quaternary ammonium compounds are provided which are useful in the treatment of substrates such as plastic materials and textile materials, both woven and nonwoven, from natural and synthetic fibers and mixtures thereof, to impart antistatic properties. A process is also provided for the preparation of such compounds, and for the treatment of substrates with such compounds.
Inventors
- 👤 Eva Margareta Martinsson
- 👤 Karl Martin Edvin Hellsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:34
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/463; C; C11; C11D; C11D1/00; C11D1/38; C11D1/62
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
117 words
Quaternary ammonium compounds capable of imparting excellent antistatic properties to a substrate, having the general formula: ##EQU1##wherein: R 1 and R 2 are aliphatic hydrocarbon groups, having from about eight to about 22 carbon atoms; R 3 and R 4 are methyl, ethyl or hydroxyethyl; n is a number from 2 to 4, representing the number of carbon atoms in the oxyalkylene substituent; n 1 and n 2 are numbers within the range from 0.5 to about 10, representing the number of oxyalkylene groups present in each substituent; and represent average values; and X is an anion selected from the group consisting of chloride, bromide, iodide, nitrate, hydroxyl, phosphate, methyl sulfate, formate acetate, proprionate citrate and tartarate.
Claim 2
Dependent Claim
117 words
Quaternary ammonium compounds capable of imparting excellent antistatic properties to a substrate, having the general formula: ##EQU1##wherein: R 1 and R 2 are aliphatic hydrocarbon groups, having from about eight to about 22 carbon atoms; R 3 and R 4 are methyl, ethyl or hydroxyethyl; n is a number from 2 to 4, representing the number of carbon atoms in the oxyalkylene substituent; n 1 and n 2 are numbers within the range from 0.5 to about 10, representing the number of oxyalkylene groups present in each substituent; and represent average values; and X is an anion selected from the group consisting of chloride, bromide, iodide, nitrate, hydroxyl, phosphate, methyl sulfate, formate acetate, proprionate citrate and tartarate.
Claim 3
Dependent Claim
24 words
Quaternary ammonium compounds in accordance with claim 1, in which n 1 and n 2 are numbers within the range from 0.5 to 2.
Claim 4
Dependent Claim
24 words
Quaternary ammonium compounds in accordance with claim 1, in which R 1 and R 2 have from about eight to about 14 carbon atoms.
Claim 5
Dependent Claim
18 words
Quaternary ammonium compounds in accordance with claim 1, in which R 3 and R 4 are methyl groups.
Claim 6
Dependent Claim
25 words
Quaternary ammonium compounds in accordance with claim 1, in which R 1 and R 2 are fatty alcohol alkyl groups derived from naturally-occurring fatty acids.
Claim 7
Dependent Claim
25 words
Quaternary ammonium compounds in accordance with claim 1, in which R 1 and R 2 are synthetic alcohol alkyl groups derived from the Oxo process.
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) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |