US3896975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non foaming lecithin emulsion cookware lubricant
Assignee: Individual
•
Filing: 1974-07-26
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Granted: 1975-07-29
•
Expires: 1994-07-26
Abstract
Abstract Lecithin aqueous emulsion applicable to hot or cold pan surfaces without foaming for more complete surface coverage and ready consumer acceptance is provided adapted to be pressurized under a propellant vapor phase, for dispensing as an aerosol.
Inventors
- 👤 Dan W Follmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:13
CPC Classifications
A; A21; A21D; A21D8/00; A21D8/08; A23; A23J; A23J7/00; A47; A47J; A47J36/00; A47J36/02; C; C08; C08L; C08L91/00
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
93 words
COOKWARE LUBRICANT COMPOSITION ADAPTED TO BE DISPENSED UNDER AEROSOL PROPELLANT PRESSURE FROM A SUITABLE CONTAINER ONTO A COOKWARE SURFACE WITHOUT FOAMING WHILE TEMPORARILY MARKING THE SURFACE COVERAGE SAID COMPOSITION COMPRISING AN AQUEOUS COMPONENT HAVING A PH BETWEEN 3 AND 9.8 AND COMPRISING A WATER IN OIL EMULSION OF 0.5 TO 25% BY WEIGHT OF LECITHIN CONSISTING ESSENTIALLY OF P-INOSITOL P-CHOLINE AND P-CEPHALIN PHOSPHATIDES IN A RATIO SUCH THAT SAID COMPOSITION HAS AN HLB NUMBER OF NOT MORE THAN 7 SAID P-INOSITOL COMPRISING NOT LESS THAN 10% OF THE TOTAL WEIGHT OF SAID PHOSPHATIDES.
Claim 2
Dependent Claim
93 words
COOKWARE LUBRICANT COMPOSITION ADAPTED TO BE DISPENSED UNDER AEROSOL PROPELLANT PRESSURE FROM A SUITABLE CONTAINER ONTO A COOKWARE SURFACE WITHOUT FOAMING WHILE TEMPORARILY MARKING THE SURFACE COVERAGE SAID COMPOSITION COMPRISING AN AQUEOUS COMPONENT HAVING A PH BETWEEN 3 AND 9.8 AND COMPRISING A WATER IN OIL EMULSION OF 0.5 TO 25% BY WEIGHT OF LECITHIN CONSISTING ESSENTIALLY OF P-INOSITOL P-CHOLINE AND P-CEPHALIN PHOSPHATIDES IN A RATIO SUCH THAT SAID COMPOSITION HAS AN HLB NUMBER OF NOT MORE THAN 7 SAID P-INOSITOL COMPRISING NOT LESS THAN 10% OF THE TOTAL WEIGHT OF SAID PHOSPHATIDES.
Claim 3
Dependent Claim
69 words
Cookware composition according to claim 1 in which lecithin is present in an amount between 2 and 10 percent by weight, said P-cephalin is present in an amount less than 50 percent of the total weight of said phosphatides and said composition including also a fatty acid ester and vegetable oil diluent, of a type and in an amount to maintain the HLB number at not more than 7.
Claim 4
Dependent Claim
37 words
Cookware composition according to claim 2 in which said P-cephalin and P-choline taken together are present in an amount less than 85% of the total weight of said phOsphatides and the balance of said phosphatide is P-inositol.
Claim 5
Dependent Claim
92 words
Cookware lubricant composition adapted to be dispensed under aerosol propellant pressure from a suitable container onto a cookware surface without foaming while temporarily signal marking the surface coverage, said composition comprising a water in oil emulsion in water having a pH between 3 and 9.8, of 0.5 to 25 percent by weight of an oil type lubricant having an HLB number not greater than 7 and consisting essentially of commercial lecithin containing by weight not less than 10 percent P-inositol based on the combined weight of P-inositol, P-choline and P-cephalin phosphatides therein.
Claim 6
Dependent Claim
92 words
Cookware lubricant composition adapted to be dispensed under aerosol propellant pressure from a suitable container onto a cookware surface without foaming while temporarily signal marking the surface coverage, said composition comprising a water in oil emulsion in water having a pH between 3 and 9.8, of 0.5 to 25 percent by weight of an oil type lubricant having an HLB number not greater than 7 and consisting essentially of commercial lecithin containing by weight not less than 10 percent P-inositol based on the combined weight of P-inositol, P-choline and P-cephalin phosphatides therein.
Claim 7
Dependent Claim
23 words
Composition according to claim 4 in which the P-choline and P-cephalin taken together are less than 85% by weight of the combined phosphatides.
Claim 8
Dependent Claim
20 words
Composition according to claim 5 in which the P-cephalin is less than 50 percent by weight of the combined phosphatides.
Claim 9
Dependent Claim
18 words
Composition according to claim 4 in which water comprises not less than 45% by weight of the emulsion.
Claim 10
Dependent Claim
25 words
Composition according to claim 4 including also a fatty acid ester emulsifier which taken with the lecithin provides an HLB number not greater than 7.
Claim 11
Dependent Claim
11 words
Composition according to claim 4 including also a vegetable oil diluent.
Claim 12
Dependent Claim
12 words
Composition according to claim 9 in which said diluent is soybean oil.
Claim 13
Dependent Claim
25 words
Composition according to claim 4 including also a polyvalent ion salt dissolved in the water phase in an amount up to about 1% by weight.
Claim 14
Dependent Claim
14 words
Composition according to claim 4 including also up to 0.5% by weight ascorbic acid.
Claim 15
Dependent Claim
15 words
Composition according to claim 12 including also up to about 1.0% by weight calcium ascorbate.
Claim 16
Dependent Claim
18 words
Composition according to claim 4 in which said composition has a pH of 6.5 + or - 1.0.
Claim 17
Dependent Claim
58 words
Composition according to claim 1 including also propellant selected from the group consisting of normally gaseous materials liquifiable at pressures less than about 90 psig and selected from hydrocarbons contaiming from 3 to 5 carbon atoms inclusive, chlorine and/or fluorine substituted hydrocarbons containing from 1 to 6 carbon atoms inclusive, carbon dioxide, nitrogen, and nitrous oxide mixtures thereof.
Claim 18
Dependent Claim
17 words
Composition according to claim 15 in which the oil phase density is equal the aqueous phase density.
Claim 19
Dependent Claim
16 words
Cookware lubricant aerosol package comprising a pressure resistant container having a dispensing valve, and disposed therein:
Claim 20
Dependent Claim
16 words
Cookware lubricant aerosol package comprising a pressure resistant container having a dispensing valve, and disposed therein:
Claim 21
Dependent Claim
16 words
COOKWARE LUBRICANT AEROSOL PACKAGE COMPRISING A PRESSURE RESISTANT CONTAINER HAVING A DISPENSING VALVE, AND DISPOSED THEREIN:
Claim 22
Dependent Claim
16 words
COOKWARE LUBRICANT AEROSOL PACKAGE COMPRISING A PRESSURE RESISTANT CONTAINER HAVING A DISPENSING VALVE, AND DISPOSED THEREIN:
Claim 23
Dependent Claim
49 words
Method of preparing a cookware surface lubricating composition comprising 2 to 10 percent by weight of lecithin containing at least 10 percent by weight P-inositol which includes gently swirling ambient or room temperature water previously warmed to between 130* F and 175* F into lecithin in the required amount.
Claim 24
Dependent Claim
49 words
Method of preparing a cookware surface lubricating composition comprising 2 to 10 percent by weight of lecithin containing at least 10 percent by weight P-inositol which includes gently swirling ambient or room temperature water previously warmed to between 130* F and 175* F into lecithin in the required amount.
Claim 25
Dependent Claim
21 words
Method according to claim 19 including also filling said composition while hot into a can and propellant pressurizing said hot composition.
Claim 26
Dependent Claim
55 words
Method of preparing a highly aqueous cookware surface lubricating composition comprising 2 to 10 percent by weight lecithin containing at least 10% by weight P-inositol which includes slowly adding preheated water in the required amount and at a temperature of about 165* F to a slowly turning mass at ambient or room temperature of lecithin.
Claim 27
Dependent Claim
55 words
Method of preparing a highly aqueous cookware surface lubricating composition comprising 2 to 10 percent by weight lecithin containing at least 10% by weight P-inositol which includes slowly adding preheated water in the required amount and at a temperature of about 165* F to a slowly turning mass at ambient or room temperature of lecithin.
Claim 28
Dependent Claim
21 words
Method according to claim 21 including also filling said composition while hot into a can and propellant pressurizing said hot composition.
References Cited (Backward Citations)
US2796363A
Cited
US3038816A
Cited
US3318704A
Cited
US3366494A
Cited
US3661605A
Cited
US3821007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |