US4122044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granular detergent composition
Assignee: Lion Fat and Oil Co Ltd
•
Filing: 1977-04-28
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Granted: 1978-10-24
•
Expires: 1997-04-28
Abstract
Abstract A granular detergent composition contains substantially no phosphate builder component but has excellent powdery characteristics. The granular detergent composition comprises (a) 20 to 35 wt.% of a surfactant comprising an α-olefinsulfonate and an alkyl ether sulfate at a ratio of the α-olefinsulfonate to the alkyl ether sulfate of 1 : 1 to 5 : 1 by weight; and (b) 40 to 70 wt.% of a builder comprising a carbonate and a silicate at a ratio of the carbonate to the silicate of 2 : 1 to 5 : 1 by weight.
Inventors
- 👤 Masayoshi Nakamura
- 👤 Toshiaki Ogoshi
- 👤 Mitsuyoshi Yazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:00
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/10; C11D1/00; C11D1/02; C11D1/12; C11D1/29; C11D1/37; C11D3/08; C11D1/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
82 words
A phosphate-free granular detergent composition which comprises (a) 20 to 35 wt.% of a surfactant comprising a C 12 -C 22 -α-olefinsulfonate and a C 9 -C 18 -alkyl ether sulfate at a ratio of the α-olefinsulfonate to the alkyl ether sulfate of 1:1 to 5:1 by weight; and (b) 40 to 70 wt.% of a builder comprising a water soluble carbonate and a water soluble silicate at a ratio of the carbonate to the silicate of 2:1 to 5:1 by weight.
Claim 2
Dependent Claim
82 words
A phosphate-free granular detergent composition which comprises (a) 20 to 35 wt.% of a surfactant comprising a C 12 -C 22 -α-olefinsulfonate and a C 9 -C 18 -alkyl ether sulfate at a ratio of the α-olefinsulfonate to the alkyl ether sulfate of 1:1 to 5:1 by weight; and (b) 40 to 70 wt.% of a builder comprising a water soluble carbonate and a water soluble silicate at a ratio of the carbonate to the silicate of 2:1 to 5:1 by weight.
Claim 3
Dependent Claim
58 words
A granular detergent composition according to claim 1 wherein said α-olefinsulfonate is an alkali metal salt of α-olefinsulfonic acid having 12 to 22 carbon atoms and said alkyl ether sulfate is an alkali metal salt of an alkyl ether sulfate having a C 9 -C 18 alkyl group and an adduct of ethyleneoxide of 1 to 5 moles.
Claim 4
Dependent Claim
45 words
A granular detergent composition according to claim 1 wherein the carbonate is an alkali metal carbonate, sesquicarbonate or bicarbonate, and the silicate is an alkali metal silicate having the formula M 2 O.xSiO 2 wherein M represents an alkali metal; x represents 1.0 to 3.5.
Claim 5
Dependent Claim
68 words
A granular detergent composition according to claim 1 wherein the α-olefinsulfonate is a mixture of alkenylsulfonate and hydroxyalkanesulfonate produced by sulfonating, neutralizing, and hydrolyzing α-olefin and the alkyl ether sulfate is a mixture produced by forming an adduct of ethyleneoxide of an average of 1 to 5 moles to a natural or synthetic alcohol having 9 to 18 carbon atoms and sulfating the resulting adduct and neutralizing it.
Claim 6
Dependent Claim
25 words
A granular detergent composition according to claim 1 wherein the particle size of the granular detergent composition is an average of 250 to 500 μ.
Claim 7
Dependent Claim
38 words
A granular detergent composition according to claim 1 wherein the α-olefinsulfonate and the alkyl ether sulfate are mutually combined with the builder components of the carbonate and the silicate in each particle, produced by spray-drying a mixture thereof.
Claim 8
Dependent Claim
30 words
A granular detergent composition according to claim 6 wherein the particles have an average apparent density of 0.25 to 0.4 and an average particle size of 250 to 500 μ.
Claim 9
Dependent Claim
32 words
A granular detergent composition according to claim 1 wherein a part of the builder components is blended to the particles containing the α-olefinsulfonate, the alkyl ether sulfate, the carbonate and the silicate.
References Cited (Backward Citations)
US3892680A
Cited
US3755202A
Cited
US4013577A
Cited
US3915903A
Cited
US3979314A
Cited
US4061603A
Cited
US4028282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |