Patent US3907702A successfully refreshed from Google Patents.
US3907702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making a free flowing soap-nonionic detergent
Assignee: Colgate Palmolive Co
•
Filing: 1974-03-14
•
Granted: 1975-09-23
•
Expires: 1994-03-14
Abstract
Abstract Novel particulate blends of soap and liquid nonionic surfactants and a method for preparing same, is disclosed. The new method includes the combination of an appropriate fatty acid with the liquid nonionic surfactant before saponification of the acid. The novel particulate blends are dry, non-tacky and free flowing and are suitable for post addition to spray dried detergent powders or for use by themselves or with builders as final detergent formulations.
Inventors
- 👤 John H Mostow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:25
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D10/00; C11D10/04; C11D10/045; C11D11/00; C11D11/0082; C11D11/04; C11D17/00; C11D17/06; C11D1/002; C11D1/38; C11D1/42; C11D1/44; C11D1/52; C11D1/526; C11D1/72; C11D1/74
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
17 words
MECHANICALLY REDUCING SAID POROUS SOLID TO PARTICLES HAVING DENSITY OF FROM 0.25 TO 0.75 GRAMS PER CC.
Claim 2
Dependent Claim
17 words
MECHANICALLY REDUCING SAID POROUS SOLID TO PARTICLES HAVING DENSITY OF FROM 0.25 TO 0.75 GRAMS PER CC.
Claim 3
Independent Claim
198 words
THE METHOD OF FORMING FREE FLOWING DETERGENT PARTICLES COMPRISING THE STEPS OF: A. INTIMATELY MIXING A SATURATED FATTY ACID HAVING FROM 12 TO 18 CARBON ATOMS WITH A LIQUID NONIONIC SURFACTANT CHOSEN FROM THE GROUP CONSISTING OF ETHOXYLATED FATTY ALCOHOLS HAVING AN ALKYL CHAIN FROM EIGHT TO 20 CARBON ATOMS AND FROM ABOUT FOUR TO ABOUT 19 ETHYLENE OXIDE UNITS PER MOLECULE, TO PRODUCE A LIQUEFIELD MASS, B. A MOISTURE SCAVENGER BEING PRESENT IN SAID LIQUEFIELD MASS WHEN POTASSIUM IS SAID ALKALI METAL TO PREVENT SAID POTASSIUM CARBONATE FROM BECOMING DELIQUESCENT, C. NUETRAALIZING SAID LIQUEFIELD MASS BY ADDING AN ALKALI METAL CARBONATE N SUFFICIENT QUANTITY TO SAPONIFY SAID FATTY ACID, D. SAID NEUTRALIZING STEP BEING PERFORMED AT A PREDETERMINED ELEVATED TEMPERATURE SUITABLE FOR SAPONIFYING SAID FATTY ACID, E. MIXING SAID LIQUEFIED MASS DURING NUETRALIZATION TO INSURE UNIFORM SAPONIFICATION OF SAID FATTY ACID, F. COOLING THE NEUTRALIZED MASS TO ROOM TEMPERATURE, G. SAID NEUTRALIZED MASS PUFFING TO A POROUS SOLID DURING SAID COOLING STEP AND, H. SAID NEUTRALIZED MASS INCLUDING FROM ABOUT 10 TO ABOUT 50 PERCENT BY WEIGHT OF THE NONION SURFACTANT AND AT LEAST 50 PERCENT BY WEIGHT OF THE ALKALI METAL SOAP OF SAID FATTY ACID,
Claim 4
Independent Claim
198 words
THE METHOD OF FORMING FREE FLOWING DETERGENT PARTICLES COMPRISING THE STEPS OF: A. INTIMATELY MIXING A SATURATED FATTY ACID HAVING FROM 12 TO 18 CARBON ATOMS WITH A LIQUID NONIONIC SURFACTANT CHOSEN FROM THE GROUP CONSISTING OF ETHOXYLATED FATTY ALCOHOLS HAVING AN ALKYL CHAIN FROM EIGHT TO 20 CARBON ATOMS AND FROM ABOUT FOUR TO ABOUT 19 ETHYLENE OXIDE UNITS PER MOLECULE, TO PRODUCE A LIQUEFIELD MASS, B. A MOISTURE SCAVENGER BEING PRESENT IN SAID LIQUEFIELD MASS WHEN POTASSIUM IS SAID ALKALI METAL TO PREVENT SAID POTASSIUM CARBONATE FROM BECOMING DELIQUESCENT, C. NUETRAALIZING SAID LIQUEFIELD MASS BY ADDING AN ALKALI METAL CARBONATE N SUFFICIENT QUANTITY TO SAPONIFY SAID FATTY ACID, D. SAID NEUTRALIZING STEP BEING PERFORMED AT A PREDETERMINED ELEVATED TEMPERATURE SUITABLE FOR SAPONIFYING SAID FATTY ACID, E. MIXING SAID LIQUEFIED MASS DURING NUETRALIZATION TO INSURE UNIFORM SAPONIFICATION OF SAID FATTY ACID, F. COOLING THE NEUTRALIZED MASS TO ROOM TEMPERATURE, G. SAID NEUTRALIZED MASS PUFFING TO A POROUS SOLID DURING SAID COOLING STEP AND, H. SAID NEUTRALIZED MASS INCLUDING FROM ABOUT 10 TO ABOUT 50 PERCENT BY WEIGHT OF THE NONION SURFACTANT AND AT LEAST 50 PERCENT BY WEIGHT OF THE ALKALI METAL SOAP OF SAID FATTY ACID,
Claim 5
Dependent Claim
37 words
The method of claim 1 wherein, a. said alkali metal is chosen from the group consisting of sodium and potassium and, b. said fatty acid is chosen from the group consisting of lauric, myristic, palmitic and stearic.
Claim 6
Dependent Claim
16 words
The method of claim 1 wherein, a. said predetermined temperature is between about 150*F and 200*F.
References Cited (Backward Citations)
US1571625A
Cited
US1971375A
Cited
US1999184A
Cited
US2382531A
Cited
US2543744A
Cited
US2595300A
Cited
US2774735A
Cited
US2875153A
Cited
US2947701A
Cited
US3247121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |