Patent US3856684A successfully refreshed from Google Patents.
US3856684A
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Composition containing benzimidazole derivatives for softening rinse
Assignee: Procter and Gamble Co
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Filing: 1973-05-18
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Granted: 1974-12-24
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Expires: 1993-05-18
Abstract
Abstract Surface-active benzimidazole derivatives able to exist in either cationic or zwitterionic form and useful as textile treating agents are disclosed. The compounds are effective as textile softening agents substantive to fabrics as the ordinary pH of fabric rinsing operations and removable from fabrics in a zwitterionic form under succeeding alkaline washing conditions.
Inventors
- 👤 R Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:02
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/14; C11D1/38; C11D1/62; C11D3/00; C11D3/0005; C11D3/001; D; D06; D06M; D06M13/00; D06M13/322; D06M13/325; D06M13/335; D06M13/46; D06M13/47; D06M13/473; D06M16/00; G; G08; G08B; G08B13/00; G08B13/02; G08B13/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
16 words
A TEXTILE SOFTENING RINSE COMPOSITION CONSISTING ESSENTIALLY OF A QUATERNARY AMMONIUM BENZIMIDAZOLE DERIVATIVE HAVING THE FORMULA:
Claim 2
Dependent Claim
16 words
A TEXTILE SOFTENING RINSE COMPOSITION CONSISTING ESSENTIALLY OF A QUATERNARY AMMONIUM BENZIMIDAZOLE DERIVATIVE HAVING THE FORMULA:
Claim 3
Dependent Claim
47 words
The composition of claim 1 wherein the said pH is at least 2 units below the said pKa value, said pKa value being defined as the pH of the solution when the compound is 50 molar percent in zwitterionic form and 50 molar percent in cationic form.
Claim 4
Dependent Claim
25 words
A textile softening and detergent composition comprising a water-soluble non-cationic surface-active agent; a water-soluble alkaline detergency builder compound; and a benzimidazole derivative of claim 1.
Claim 5
Dependent Claim
20 words
The composition of claim 3 wherein the benzimidazole derivative comprises from 1 to 10 percent by weight of the composition.
Claim 6
Dependent Claim
17 words
The composition of claim 4 wherein the surface-active agent to builder salt is from 2:1 to 1:10.
Claim 7
Dependent Claim
32 words
Composition of claim 1 wherein said quaternary ammonium benzimidazole derivative is present in an amount sufficient to provide from about 0.01 to 0.5 percent by dry weight of the fabric being treated.
Claim 8
Dependent Claim
14 words
The composition of claim 1 wherein the quaternary ammonium composition is dimethyl-hexadecyl-(2-benzimidazoly-methyl) ammonium chloride.
References Cited (Backward Citations)
US3555040A
Cited
US3673209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |