Patent US4169066A successfully refreshed from Google Patents.
US4169066A
Expired / Lapsed
US
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Process of incorporating poly(ethylene oxide) into soap
Assignee: Colgate Palmolive Co
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Filing: 1977-07-15
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Granted: 1979-09-25
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Expires: 1997-07-15
Abstract
Abstract High molecular weight poly(ethylene oxide) is incorporated into soap by first forming a blend of poly(ethylene oxide) and molten higher fatty acids, preferably containing water.
Inventors
- 👤 David P. Joshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:47
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0084; C11D9/00; C11D9/04; C11D9/22; C11D9/225; C11D9/26; C11D9/267; C11D9/48
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
112 words
Process for incorporation of at least about 0.5 wt. % of poly(ethylene oxide) of molecular weight 100,000 to 5,000,000 into a toilet bar having a basis of soap as substantially the sole detergent comprising the steps of preparing a blend of said poly(ethylene oxide) in about 2 to 20 parts, per part by weight of said poly(ethylene oxide), of molten higher fatty acid of about 8 to 20 carbon atoms, mixing said blend with neat soap containing about 30% moisture, drying the resulting mixture to a moisture content of about 5 to 18 wt. %, and thereafter shaping the mixture into a superfatted toilet soap bar with improved lather and feel properties.
Claim 2
Dependent Claim
112 words
Process for incorporation of at least about 0.5 wt. % of poly(ethylene oxide) of molecular weight 100,000 to 5,000,000 into a toilet bar having a basis of soap as substantially the sole detergent comprising the steps of preparing a blend of said poly(ethylene oxide) in about 2 to 20 parts, per part by weight of said poly(ethylene oxide), of molten higher fatty acid of about 8 to 20 carbon atoms, mixing said blend with neat soap containing about 30% moisture, drying the resulting mixture to a moisture content of about 5 to 18 wt. %, and thereafter shaping the mixture into a superfatted toilet soap bar with improved lather and feel properties.
Claim 3
Dependent Claim
19 words
Process as in claim 1 in which said poly(ethylene oxide) has a molecular weight of about 300,000 to 400,000.
Claim 4
Dependent Claim
24 words
Process as in claim 1 in which said blend contains a minor proportion of dispersed water sufficient to decrease the viscosity of said blend.
Claim 5
Dependent Claim
15 words
Process as in claim 3 in which the water is present as a dispersed phase.
Claim 6
Dependent Claim
23 words
Process as in claim 4 in which said blend contains about 0.5 to 5 parts of water per part of said poly(ethylene oxide).
Claim 7
Dependent Claim
33 words
Process as in claim 5 in which said blend contains about 4 to 8 parts of said fatty acids and about 1 to 2 parts of water per part of said poly(ethylene oxide).
Claim 8
Dependent Claim
19 words
Process as in claim 5 in which said poly(ethylene oxide) has a molecular weight of about 300,000 to 400,000.
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) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |