US3979312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent composition containing novel bleaching agent
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 neutral detergent composition containing a bleaching agent having the formula: 4Na.sub.2 SO.sub.4.2H.sub.2 O.sub.2.NaCl
Inventors
- 👤 Yunosuke Nakagawa
- 👤 Shigetsugu Sugiura
- 👤 Kinjiro Matsunaga
- 👤 Yoshio Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:47
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3942
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
A substantially neutral detergent composition having a pH of about 6 to about 8, consisting essentially of from about 3 to about 40 percent by weight of 4Na 2 SO 4 .2H 2 O 2 .NaCl, from about 3 to about 50 percent by weight of water-soluble anionic surfactant, or water-soluble nonionic surfactant, or water-soluble amphoteric surfactant, or mixtures thereof, from about 10 to about 90 percent by weight of water-soluble neutral inorganic detergent builder or filler salt, from zero to about 20 percent by weight of water-soluble alkaline inorganic detergent builder salt, with the proviso that the amount of said water-soluble alkaline inorganic builder salt is such that the pH of the detergent composition is not higher than about 8, and from zero to about 10 percent by weight of water-soluble organic detergent builder, the detergent composition being free of activator for said 4Na 2 SO 4 .2H 2 O 2 .NaCl.
Claim 2
Dependent Claim
153 words
A substantially neutral detergent composition having a pH of about 6 to about 8, consisting essentially of from about 3 to about 40 percent by weight of 4Na 2 SO 4 .2H 2 O 2 .NaCl, from about 3 to about 50 percent by weight of water-soluble anionic surfactant, or water-soluble nonionic surfactant, or water-soluble amphoteric surfactant, or mixtures thereof, from about 10 to about 90 percent by weight of water-soluble neutral inorganic detergent builder or filler salt, from zero to about 20 percent by weight of water-soluble alkaline inorganic detergent builder salt, with the proviso that the amount of said water-soluble alkaline inorganic builder salt is such that the pH of the detergent composition is not higher than about 8, and from zero to about 10 percent by weight of water-soluble organic detergent builder, the detergent composition being free of activator for said 4Na 2 SO 4 .2H 2 O 2 .NaCl.
Claim 3
Dependent Claim
16 words
The detergent composition according to claim 1 in which the neutral inorganic salt is sodium sulfate.
Claim 4
Dependent Claim
24 words
The composition according to claim 1, containing from 10 to 30 percent by weight of 4Na 2 SO 4 .2H 2 O 2 .NaCl.
References Cited (Backward Citations)
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 |