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Patent US3832431A successfully refreshed from Google Patents.
US3832431A
Expired / Lapsed
US
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Process for making marbleized soap or detergent
Assignee: Lever Brothers Co
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Filing: 1972-02-28
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Granted: 1974-08-27
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Expires: 1992-02-28
Abstract
Abstract A marbleized mass of soap in the form of a log is produced by passing soap particles through a modified two-stage plodder and injecting a soap additive, e.g., a dye, into the compressed soap mass during extrusion of the soap. The process and apparatus can be used also to produce marbleized detergent logs.
Inventors
- 👤 R Matthaei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:31
CPC Classifications
C; C11; C11D; C11D13/00; C11D13/14; C11D13/18; B; B29; B29C; B29C48/00; B29C48/16; B29C48/17; B29C48/175; B29C48/25; B29C48/36; B29C48/395; C11D13/08; B29C48/03; B29C48/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
32 words
The method of claim 1 in which the base is soap, and injection occurs in the first stage of said plodder, and the first stage discharges through a relatively open pressure plate.
Claim 2
Dependent Claim
32 words
The method of claim 2 in which the point of injection is spaced from the point of discharge a distance equal to 5 to 45% of the length of said first stage.
Claim 3
Dependent Claim
14 words
The method of claim 3 in which the extrusion temperature is 85*F to 125*F.
Claim 4
Dependent Claim
16 words
The method of claim 1 in which injection occurs in the second stage of said plodder.
Claim 5
Dependent Claim
45 words
The method of claim 2 in which said additive injection is accomplished by a pulsating flow injection, the periods of the pulse cycle during which additive is added and during which additive is not added being up to about 8 seconds and 75 seconds respectively.
Claim 6
Dependent Claim
35 words
The method of claim 2 in which the base soap contains 5 - 95% coco soap, 5 - 95% tallow soap, 0 - 30% free fatty acid, 0 - 26% water, 0.1 - 5% NaCl.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |