Patent US4201687A successfully refreshed from Google Patents.
US4201687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chloroimide fabric bleaches
Assignee: Akzo Nobel NV
•
Filing: 1978-10-25
•
Granted: 1980-05-06
•
Expires: 1998-10-25
Abstract
Abstract A fabric bleaching composition is provided which consists essentially of water and a bleach selected from the group consisting of disodium chloroimidodisulfate, dipotassium chloroimidodisulfate and mixtures thereof. The fabric bleaching composition can also contain a detergent, a buffering agent and other ingredients in a detergent formulation. The fabric bleaching composition is intermediate in strength between peroxide-type fabric bleaches and alkali metal hypochlorite fabric bleaches.
Inventors
- 👤 Marvin M. Crutchfield
- 👤 Robert P. Langguth
- 👤 James M. Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:06
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/3953; D; D06; D06L; D06L4/00; D06L4/20; D06L4/21; D06L4/22; D06L4/24; D06L4/26; D06L4/27; C11D1/00; C11D1/02; C11D1/66; C11D1/88
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
45 words
A fabric bleaching composition comprising: water; a stain bleaching amount of a bleach selected from the group consisting of disodium chloroimidodisulfonate, dipotassium chloroimidodisulfonate, and mixtures thereof; and a sufficient amount of a buffering agent to maintain the pH between about pH 9 and pH 11.
Claim 2
Dependent Claim
45 words
A fabric bleaching composition comprising: water; a stain bleaching amount of a bleach selected from the group consisting of disodium chloroimidodisulfonate, dipotassium chloroimidodisulfonate, and mixtures thereof; and a sufficient amount of a buffering agent to maintain the pH between about pH 9 and pH 11.
Claim 3
Dependent Claim
15 words
A composition of claim 1 wherein the amount of bleach is at least 10 ppm.
Claim 4
Dependent Claim
27 words
A composition of claim 1 wherein the amount of bleach is between about 10 ppm and about 15 weight percent, based on the weight of the composition.
Claim 5
Dependent Claim
19 words
A composition of claim 1 wherein the amount of bleach is between about 10 ppm and about 1500 ppm.
Claim 6
Dependent Claim
15 words
A composition of any of claims 1 through 4 wherein the bleach is disodium chloroimidodisulfonate.
Claim 7
Dependent Claim
28 words
A composition of claim 1 wherein the composition contains a water soluble detergent selected from the group consisting of anionic, nonionic, zwitterionic and amphoteric surfactants, or mixtures thereof.
Claim 8
Dependent Claim
26 words
A composition of claim 6 wherein the amount of detergent is between about 100 ppm and 95 weight percent, based on the weight of the composition.
Claim 9
Dependent Claim
12 words
A composition of claim 6 wherein the detergent is an anionic surfactant.
Claim 10
Dependent Claim
12 words
A composition of claim 6 wherein the detergent is a nonionic surfactant.
Claim 11
Dependent Claim
31 words
A composition of claim 1 or 6 wherein the amount of buffering agent is between about 10 weight percent and about 25 weight percent, based on the weight of the bleach.
Claim 12
Dependent Claim
16 words
A composition of claim 1 or 6 wherein the buffering agent is an alkali metal carbonate.
References Cited (Backward Citations)
US3749672A
Cited
US4088611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-05-06 | 1983-11-05 | 1984-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-06 | 1987-11-05 | 1988-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-06 | 1991-11-05 | 1992-05-06 | $7700.00 | Window Closed / Lapsed |