Patent US3848891A successfully refreshed from Google Patents.
Patent US4970017A successfully refreshed from Google Patents.
US4970017A
Expired / Lapsed
US
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Process for production of granular detergent composition having high bulk density
Assignee: Lion Corp
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Filing: 1988-12-16
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Granted: 1990-11-13
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Expires: 2008-12-16
Abstract
Abstract A process for producing a granular detergent composition having a high bulk density comprising the steps of: (i) kneading detergent ingredients to form a kneaded solid detergent mixture; (ii) disintegrating the solid detergent mixture; and (iii) coating the disintegrated granular detergent composition with water-insoluble finely divided powder particles having an average primary particle diameter of 10 μm or less.
Inventors
- 👤 Masayoshi Nakamura
- 👤 Noboru Hara
- 👤 Kazuo Nagoh
- 👤 Yuji Tai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:00
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/06; C11D17/065; C11D17/0039
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
86 words
A process for producing a granular detergent composition having a high bulk density comprising the steps of: (i) kneading detergent ingredients containing at least 10% by weight of potassium alkylaryl sulfonate to form a kneaded solid detergent mixture; (ii) disintegrating the kneaded solid detergent mixture; and subsequently (iii) coating the disintegrated granular detergent composition with 0.5% to 5% by weight, based on the weight of the disintegrated detergent composition, of water-insoluble finely divided powder particles having an average primary particle diameter of 10 μm or less.
Claim 2
Dependent Claim
86 words
A process for producing a granular detergent composition having a high bulk density comprising the steps of: (i) kneading detergent ingredients containing at least 10% by weight of potassium alkylaryl sulfonate to form a kneaded solid detergent mixture; (ii) disintegrating the kneaded solid detergent mixture; and subsequently (iii) coating the disintegrated granular detergent composition with 0.5% to 5% by weight, based on the weight of the disintegrated detergent composition, of water-insoluble finely divided powder particles having an average primary particle diameter of 10 μm or less.
Claim 3
Dependent Claim
25 words
A process as claimed in claim 1, wherein said alkylaryl sulfonate is an lkylbenzene sulfonate having an alkyl group with 8 to 18 carbon atoms.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 1, wherein the average particle diameter of the disintegrated detergent composition is 300 2000 μm.
Claim 5
Dependent Claim
35 words
A process as claimed in claim 1, wherein the water-insoluble finely divided powder particles are those derived from calcium stearate, magnesium stearate, alumino silicate, calcium carbonate, magnesium carbonate, magnesium silicate, silicon dioxide, or titanium dioxide.
Claim 6
Dependent Claim
47 words
A process for preparing a granular detergent composition as claimed in claim 1, wherein the disintegrated granular detergent composition is treated in a circulating gas stream along the inner wall of a vessel for a time sufficient to increase the bulk density of the granular detergent composition.
Claim 7
Dependent Claim
150 words
A process for producing a granular detergent composition having a high bulk density comprising the steps of: (i) kneading detergent ingredients containing 30% to 60% by weight of a surfactant including at least 10% by weight of an olefin sulfonate and 35% to 55% by weight of an alkali builder including 1% to 15% by weight of a silicate having a ratio of Na 2 O to SiO 2 to 3.5, the content of potassium in the form of the potassium salts being 1.5% to 50% by weight of the total amount of the surfactant to form a kneaded solid detergent mixture. (ii) disintegrating the kneaded solid detergent mixture; and subsequently (iii) coating the disintegrated granular detergent composition with 0.5% to 5% by weight, based on the weight of the disintegrated detergent composition, of water-insoluble finely divided powder particles having an average primary particle diameter of 10 μm or less.
Claim 8
Dependent Claim
150 words
A process for producing a granular detergent composition having a high bulk density comprising the steps of: (i) kneading detergent ingredients containing 30% to 60% by weight of a surfactant including at least 10% by weight of an olefin sulfonate and 35% to 55% by weight of an alkali builder including 1% to 15% by weight of a silicate having a ratio of Na 2 O to SiO 2 to 3.5, the content of potassium in the form of the potassium salts being 1.5% to 50% by weight of the total amount of the surfactant to form a kneaded solid detergent mixture. (ii) disintegrating the kneaded solid detergent mixture; and subsequently (iii) coating the disintegrated granular detergent composition with 0.5% to 5% by weight, based on the weight of the disintegrated detergent composition, of water-insoluble finely divided powder particles having an average primary particle diameter of 10 μm or less.
Claim 9
Dependent Claim
47 words
A process for preparing a granular detergent composition as claimed in claim 6, wherein the disintegrated granular detergent composition is treated in a circulating gas stream along the inner wall of a vessel for a time sufficient to increase the bulk density of the granular detergent composition.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |