US3979313A
Expired / Lapsed
US
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Bleaching composition
Assignee: Kao Corp
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Filing: 1975-07-07
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Granted: 1976-09-07
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Expires: 1995-07-07
Abstract
Abstract A bleaching composition comprising a hydrogen peroxide adduct having the formula: 4Na.sub.2 SO.sub.4.sup.. 2H.sub.2 O.sub.2.sup.. NaCl and an activating agent.
Inventors
- 👤 Yunosuke Nakagawa
- 👤 Shigetsugu Sugiura
- 👤 Kinjiro Matsunaga
- 👤 Yoshio Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:46
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/391; C11D3/3912; C11D3/3915; C11D3/3917; C11D3/3942; D; D06; D06L; D06L4/00; D06L4/10; D06L4/12; D06L4/13
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
128 words
A bleaching composition consisting essentially of from about 20 to about 100 percent by weight of a mixture of 1. 4Na 2 SO 4 .sup.. 2H 2 O 2 .sup.. NaCl, and 2. an activating agent capable of reacting with hydrogen peroxide in aqueous solution to form an organic peracid, wherein the weight ratio of (2) / (1) is from 99/1 to 1/99, from zero to about 10 percent by weight of water-soluble anionic surfactant, or water-soluble nonionic surfactant or mixtures thereof, from zero to about 80 percent by weight of water-soluble neutral inorganic detergent builder or filler salt, from zero to about 30 percent by weight of water-soluble alkaline inorganic detergent builder salt, and from zero to about 10 percent by weight of water-soluble organic detergent builder.
Claim 2
Dependent Claim
128 words
A bleaching composition consisting essentially of from about 20 to about 100 percent by weight of a mixture of 1. 4Na 2 SO 4 .sup.. 2H 2 O 2 .sup.. NaCl, and 2. an activating agent capable of reacting with hydrogen peroxide in aqueous solution to form an organic peracid, wherein the weight ratio of (2) / (1) is from 99/1 to 1/99, from zero to about 10 percent by weight of water-soluble anionic surfactant, or water-soluble nonionic surfactant or mixtures thereof, from zero to about 80 percent by weight of water-soluble neutral inorganic detergent builder or filler salt, from zero to about 30 percent by weight of water-soluble alkaline inorganic detergent builder salt, and from zero to about 10 percent by weight of water-soluble organic detergent builder.
Claim 3
Dependent Claim
36 words
A bleaching composition as claimed in claim 1 in which said activating agent is selected from the group consisting of glucose pentaacetate, octa-acetylated sucrose, triacetin, acetoxybenzenesulfonates, triacetylcyanurates, tetraacetylethylenediamine, tetraacetylglycoluril, phthalic anhydride, succinic anhydride and mixtures thereof.
Claim 4
Dependent Claim
22 words
A bleaching composition as claimed in claim 2 in which the weight ratio of (2) / (1) is from 7/3 to 1/20.
Claim 5
Dependent Claim
40 words
A bleaching composition as claimed in claim 3 containing from 25 to 70% by weight of the sum of component (1) and component (2) and from 10 to 70% by weight of sodium sulfate, as said watersoluble neutral inorganic salt.
Claim 6
Dependent Claim
32 words
A bleaching composition as claimed in claim 1 containing from 10 to 20% by weight of sodium tripolyphosphate or sodium pyrophosphate, or mixtures thereof, as said water-soluble alkaline inorganic detergent builder salt.
Claim 7
Dependent Claim
32 words
A bleaching composition as claimed in claim 5 containing from 10 to 20% by weight of sodium tripolyphosphate or sodium pyrophosphate, or mixtures thereof, as said water-soluble alkaline inorganic detergent builder salt.
Claim 8
Dependent Claim
18 words
A bleaching composition as claimed in claim 1 containing from 3 to 7% by weight of said surfactant.
Claim 9
Dependent Claim
40 words
A bleaching composition as claimed in claim 7 containing from 25 to 70% by weight of the sum of component (1) and component (2) and from 10 to 70% by weight of sodium sulfate, as said watersoluble neutral inorganic salt.
Claim 10
Dependent Claim
32 words
A bleaching composition as claimed in claim 8 containing from 10 to 20% by weight of sodium tripolyphosphate or sodium pyrophosphate, or mixtures thereof, as said water-soluble alkaline inorganic detergent builder salt.
References Cited (Backward Citations)
US3715184A
Cited
US3663444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |