US4476323A
Expired / Lapsed
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Surface-active quaternary ammonium compounds for treatment of textiles and cellulosic materials
Assignee: Nouryon Surface Chemistry AB
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Filing: 1981-02-24
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Granted: 1984-10-09
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Expires: 2001-02-24
Abstract
Abstract The invention relates to new surface-active quaternary ammonium compounds having the general formula: ##STR1## wherein: R 1 and R 2 are each hydrocarbon groups having from about twelve to about forty carbon atoms; R 3 and R 4 are selected from the group consisting of methyl, ethyl and hydroxyethyl; A is an oxyalkylene group derived from both ethylene oxide and propylene oxide, having a ratio of oxyethylene units to the total number of oxyalkylene groups within the range from about 1:6 to about 5:6; m is a number corresponding to the valence of X; n 1 and n 2 represent the average number of oxyalkylene units and are within the range from about 6 to about 30; and X is an anion. The compounds impart to the treated textiles and cellulosic materials a reduced tendency to retain an electrostatic charge and/or improved softness and/or reduced mechanical strength due to a reduction in interfiber bonding, and at the same time preserve good hydrophilic properties.
Inventors
- 👤 Karl M. E. Hellsten
- 👤 Jan G. Emanuelsson
- 👤 Svante L. Wahlen
- 👤 Axel I. Thebrin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:45
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; C; C09; C09K; C09K23/00; C09K23/16; C11; C11D; C11D1/00; C11D1/38; C11D1/62; D06; D06M; D06M13/00; D06M13/322; D06M13/372; D06M13/46; D06M13/463; D21C; D21C9/00; D21C9/001; D21C9/002; D21C9/005
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
117 words
Surface-active quaternary ammonium compounds having the general formula: ##STR12## wherein: R 1 and R 2 are each hydrocarbon groups having from about twelve to about forty carbon atoms; R 3 and R 4 are selected from the group consisting of methyl, ethyl and hydroxyethyl; A is an oxyalkylene group derived from both ethylene oxide and propylene oxide, having a ratio of oxyethylene units to the total number of oxyalkylene groups within the range from about 1:6 to about 5:6; m is a number corresponding to the valence of X; n 1 and n 2 represent the average number of oxyalkylene units and are within the range from about 6 to about 30; and X is an anion.
Claim 2
Dependent Claim
117 words
Surface-active quaternary ammonium compounds having the general formula: ##STR12## wherein: R 1 and R 2 are each hydrocarbon groups having from about twelve to about forty carbon atoms; R 3 and R 4 are selected from the group consisting of methyl, ethyl and hydroxyethyl; A is an oxyalkylene group derived from both ethylene oxide and propylene oxide, having a ratio of oxyethylene units to the total number of oxyalkylene groups within the range from about 1:6 to about 5:6; m is a number corresponding to the valence of X; n 1 and n 2 represent the average number of oxyalkylene units and are within the range from about 6 to about 30; and X is an anion.
Claim 3
Dependent Claim
14 words
Compounds according to claim 1 in which R 3 and R 4 are methyl.
Claim 4
Dependent Claim
32 words
Compounds according to claim 1 in which R 1 and R 2 are aliphatic hydrocarbon having from twelve to twenty-two carbon atoms, and n is within the range from 6 to 15.
Claim 5
Dependent Claim
32 words
Compounds according to claim 1 in which R 1 and R 2 are alkyl-substituted phenyl having from fourteen to thirty carbon atoms, and n is within the range from 8 to 25.
Claim 6
Dependent Claim
65 words
A process for the treatment of textiles and cellulosic materials to impart to the treated textiles and cellulosic materials a reduced tendency to retain an electrostatic charge and/or improved softness and/or reduced mechanical strength due to a reduction in interfiber bonding, and at the same time preserve good hydrophilic properties, which comprises applying to the textile or cellulosic material a compound according to claim 1.
Claim 7
Dependent Claim
15 words
A process according to claim 5 in which R 3 and R 4 are methyl.
Claim 8
Dependent Claim
33 words
A process according to claim 5 in which R 1 and R 2 are aliphatic hydrocarbon having from twelve to twenty-two carbon atoms, and n is within the range from 6 to 15.
Claim 9
Dependent Claim
33 words
A process according to claim 5 in which R 1 and R 2 are alkyl-substituted phenyl having from fourteen to thirty carbon atoms, and n is within the range from 8 to 25.
Claim 10
Dependent Claim
16 words
A process according to claim 5 in which the compound is applied as an aqueous solution.
Claim 11
Dependent Claim
28 words
A process according to claim 9 in which the concentration compound in the aqueous solution is within the range from 0.01 to 0.5 g per liter of solution.
Claim 12
Dependent Claim
31 words
A process according to claim 5 in which the compound is applied to the material as an aqueous solution containing from about 0.01 to about 25% by weight of the compound.
Claim 13
Dependent Claim
17 words
A process according to claim 5 in which the compound is applied to cellulosic material after bleaching.
Claim 14
Dependent Claim
33 words
A process according to claim 12 in which the compound is applied to material in the form of an aqueous solution having a concentration of 1 to 15% by weight of the compound.
Claim 15
Dependent Claim
14 words
A process according to claim 12 in which the cellulosic material is cellulose fluff.
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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) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |