US5137793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooking equipment pretreatment composition and method of use
Assignee: Kay Chemical Co
•
Filing: 1990-08-01
•
Granted: 1992-08-11
•
Expires: 2010-08-01
Abstract
Abstract A food-safe composition for the pretreatment of a surface, preferably an oven or a broiler, which may be subjected to heat is liable to soiling by organic food deposits, especially baked-on food deposits. A food-safe, inorganic thickening agent which is substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that, during application to the surface, the composition is capable of forming a continuous coating adhered to all desired portions of the surface, is combined with (1) an alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled and (2) a high-boiling, organic component selected from the group consisting of (a) ethers having more than seven carbon atoms and (b) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries. The composition forms a film after drying, preferably by heating, which remains continuous over all portions of the surface, including areas which may already be soiled with food deposits. After the film accumulates additional food soils, the soiled film can be readily removed by contact with water or an aqueous solution.
Inventors
- 👤 John R. Cockrell, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:40
CPC Classifications
B; B08; B08B; B08B17/00; B08B17/02; B08B17/04; C; C09; C09D; C09D5/00; C11; C11D; C11D17/00; C11D17/0008; C11D17/003; C11D17/0043; C11D3/00; C11D3/0005; C11D3/0057; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/1253; C11D3/1266; C11D7/00; C11D7/02; C11D7/04; C11D7/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504
Claims Analysis
Total Claims: 62
Claim 1
Independent Claim
160 words
A food-safe composition for the pretreatment of a surface which is liable to soiling by organic food deposits, said composition consisting essentially of: a. a food-safe, inorganic thickening agent which is substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that, during application to the surface, the composition is capable of forming a continuous coating adhered to all desired portions of the surface; b. an alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and c. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries.
Claim 2
Dependent Claim
160 words
A food-safe composition for the pretreatment of a surface which is liable to soiling by organic food deposits, said composition consisting essentially of: a. a food-safe, inorganic thickening agent which is substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that, during application to the surface, the composition is capable of forming a continuous coating adhered to all desired portions of the surface; b. an alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and c. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries.
Claim 3
Dependent Claim
13 words
The food-safe composition of claim 1 wherein the surface is subjected to heat.
Claim 4
Dependent Claim
23 words
The food-safe composition of claim 2 wherein the surface is subjected to heat and is liable to soiling by baked-on organic food deposits.
Claim 5
Dependent Claim
12 words
The food-safe composition of claim 1 wherein the composition also includes water.
Claim 6
Dependent Claim
13 words
The food-safe composition of claim 1 wherein the composition is a sprayable liquid.
Claim 7
Dependent Claim
14 words
The food-safe composition of claim 1 wherein the composition is a solid or semisolid.
Claim 8
Dependent Claim
160 words
A food-safe composition for the pretreatment of a surface which is subjected to heat and liable to soiling by baked-on organic food deposits, said composition consisting essentially of: a. water; b. a food-safe, inorganic thickening agent which is a smectite clay material and is present in an amount sufficient so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; c. at least one alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and d. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries.
Claim 9
Dependent Claim
160 words
A food-safe composition for the pretreatment of a surface which is subjected to heat and liable to soiling by baked-on organic food deposits, said composition consisting essentially of: a. water; b. a food-safe, inorganic thickening agent which is a smectite clay material and is present in an amount sufficient so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; c. at least one alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and d. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries.
Claim 10
Dependent Claim
14 words
The food-safe composition of claim 7 wherein the thickening agent contains predominantly montmorillonite clay.
Claim 11
Dependent Claim
15 words
The food-safe composition of claim 8 wherein the thickening agent is a magnesium aluminum silicate.
Claim 12
Dependent Claim
28 words
The food-safe composition of claim 7 wherein the thickening agent is present in said composition in a relative amount of about 0.5 to about 10 parts by weight.
Claim 13
Dependent Claim
28 words
The food-safe composition of claim 10 wherein the thickening agent is present in said composition in a relative amount of about 1.0 to about 3.0 parts by weight.
Claim 14
Dependent Claim
24 words
The food-safe composition of claim 7 wherein at least one water-soluble, inorganic salt is selected from the group consisting of phosphates and condensed phosphates.
Claim 15
Dependent Claim
25 words
The food-safe composition of claim 12 wherein at least one water-soluble, inorganic salt is selected from the group consisting of tripotassium phosphate and sodium tripolyphosphate.
Claim 16
Dependent Claim
30 words
The food-safe composition of claim 7 wherein the water-soluble inorganic salt is present in said composition in a relative amount of about 0.05 parts to about 67 parts by weight.
Claim 17
Dependent Claim
25 words
The food-safe composition of claim 7 wherein the high-boiling, organic component is selected from the group consisting of vegetable oils and animal derived fatty materials.
Claim 18
Dependent Claim
15 words
The food-safe composition of claim 7 wherein the high-boiling, organic component is a vegetable oil.
Claim 19
Dependent Claim
15 words
The food-safe composition of claim 15 wherein the high-boiling, organic component is a soybean oil.
Claim 20
Dependent Claim
29 words
The food-safe composition of claim 7 wherein the high-boiling, organic component is present in said composition in a relative amount of about 4 to about 20 parts by weight.
Claim 21
Dependent Claim
15 words
The food-safe composition of claim 7 further consisting essentially of an alkali metal halide salt.
Claim 22
Dependent Claim
14 words
The food-safe composition of claim 7 further consisting essentially of a food-safe, alkali-stable dye.
Claim 23
Dependent Claim
24 words
The food-safe composition of claim 7 wherein the composition, prior to application to the surface, has a pH from about 9.0 to about 14.0.
Claim 24
Dependent Claim
203 words
A food-safe composition for the pretreatment of a surface which is subjected to heat and liable to soiling by baked-on organic food deposits consisting essentially of: a. water; b. a food-safe, inorganic thickening agent which is a magnesium aluminum silicate, said thickening agent being present in said composition in a relative amount of about 0.5 to about 10 parts by weight, so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; c. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of tripotassium phosphate, trisodium phosphate, sodium tripolyphosphate and potassium tripolyphosphate in a relative amount in said composition of about 0.05 to about 67.0 parts by weight, so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; d. a soybean oil present in said composition at a relative level of about 4 to about 20 parts by weight; and e. a FD&C Blue #1 Dye present in said composite at a relative level of about 0.01 to about 0.03 parts by weight; wherein the composition, prior to application to the surface, has a pH of about 11.5 to 12.5.
Claim 25
Dependent Claim
203 words
A food-safe composition for the pretreatment of a surface which is subjected to heat and liable to soiling by baked-on organic food deposits consisting essentially of: a. water; b. a food-safe, inorganic thickening agent which is a magnesium aluminum silicate, said thickening agent being present in said composition in a relative amount of about 0.5 to about 10 parts by weight, so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; c. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of tripotassium phosphate, trisodium phosphate, sodium tripolyphosphate and potassium tripolyphosphate in a relative amount in said composition of about 0.05 to about 67.0 parts by weight, so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; d. a soybean oil present in said composition at a relative level of about 4 to about 20 parts by weight; and e. a FD&C Blue #1 Dye present in said composite at a relative level of about 0.01 to about 0.03 parts by weight; wherein the composition, prior to application to the surface, has a pH of about 11.5 to 12.5.
Claim 26
Dependent Claim
146 words
A continuous food safe film adhered to a surface which is liable to soiling by organic food deposits, said film having been dried, consisting essentially of: a. a food-safe, inorganic thickening agent which is substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that the film was produced from a continuous coating on said surface; b. an alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the film is readily removable with water or an aqueous solution after soiling; and c. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries.
Claim 27
Dependent Claim
146 words
A continuous food safe film adhered to a surface which is liable to soiling by organic food deposits, said film having been dried, consisting essentially of: a. a food-safe, inorganic thickening agent which is substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that the film was produced from a continuous coating on said surface; b. an alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the film is readily removable with water or an aqueous solution after soiling; and c. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries.
Claim 28
Dependent Claim
51 words
The film of claim 23 wherein the thickening agent is present in said film in a relative amount of about 0.5 to about 10 parts by weight and the water-soluble inorganic salt is present in said film in a relative amount of about 0.05 parts to about 67 parts by weight.
Claim 29
Dependent Claim
16 words
The film of claim 23 wherein the film is about 0.06 to about 15.0 mils thick.
Claim 30
Dependent Claim
169 words
A continuous food safe film adhered to a desired surface which is subjected to heat and liable to soiling by baked-on organic food deposits, said film having been dried, consisting essentially of: a. a food-safe, inorganic thickening agent which is a smectite clay material substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that the film was produced by a continuous coating adhered to the surface; b. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of phosphates and condensed phosphates in an amount sufficient so that the film is readily removable with water or an aqueous solution after soiling; and c. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries.
Claim 31
Dependent Claim
169 words
A continuous food safe film adhered to a desired surface which is subjected to heat and liable to soiling by baked-on organic food deposits, said film having been dried, consisting essentially of: a. a food-safe, inorganic thickening agent which is a smectite clay material substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that the film was produced by a continuous coating adhered to the surface; b. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of phosphates and condensed phosphates in an amount sufficient so that the film is readily removable with water or an aqueous solution after soiling; and c. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries.
Claim 32
Dependent Claim
33 words
The film of claim 24 wherein the thickening agent contains predominantly montmorillonite clay and wherein at least one water-soluble, inorganic salt is selected from the group consisting of tripotassium phosphate and sodium tripolyphosphate.
Claim 33
Dependent Claim
14 words
The film of claim 26 wherein the high-boiling organic component is a soybean oil.
Claim 34
Independent Claim
204 words
A method for cleaning a desired surface which is liable to soiling by organic food deposits comprising the steps of: a. applying to the surface a food-safe composition consisting essentially of: i. a food-safe, inorganic thickening agent which is substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; ii. an alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and iii. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries, to form a continuous coating on the surface; b. drying the continuous coating to form a film; c. allowing the film to become soiled; and d. removing the soiled film by contacting the soiled film with water or an aqueous solution.
Claim 35
Independent Claim
204 words
A method for cleaning a desired surface which is liable to soiling by organic food deposits comprising the steps of: a. applying to the surface a food-safe composition consisting essentially of: i. a food-safe, inorganic thickening agent which is substantially insoluble in an alkaline aqueous composition and which is present in an amount sufficient so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; ii. an alkaline, food-safe, water-soluble inorganic salt in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and iii. a high-boiling, organic component selected from the group consisting of (1) non-nitrogen containing ethers having more than seven carbon atoms and (2) aliphatic esters having carboxylic acid-derived portions of more than seven carbon atoms, wherein said high-boiling, organic component is present in an amount sufficient so that the continuous coating remains continuous as the coating dries, to form a continuous coating on the surface; b. drying the continuous coating to form a film; c. allowing the film to become soiled; and d. removing the soiled film by contacting the soiled film with water or an aqueous solution.
Claim 36
Dependent Claim
13 words
The method of claim 29 wherein the desired surface is subjected to heat.
Claim 37
Dependent Claim
12 words
The method of claim 29 wherein the composition is a sprayable liquid.
Claim 38
Independent Claim
189 words
A method for cleaning a desired surface which is subjected to heat and liable to soiling by baked-on organic food deposits comprising the steps of: a. applying to the surface a food-safe composition consisting essentially of: i. water; ii. a food-safe, inorganic thickening agent which is a smectite clay material substantially insoluble in an alkaline aqueous composition, and which is present in an amount sufficient so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; iii. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of phosphates and condensed phosphates in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and iv. a high-boiling, organic component which is selected from the group consisting of vegetable oils and animal-derived fatty materials, to form a continuous coating on the surface; b. drying the continuous coating to form a film; c. allowing the film to become soiled; and d. removing the soiled film by contacting the soiled film with water or an aqueous solution.
Claim 39
Independent Claim
189 words
A method for cleaning a desired surface which is subjected to heat and liable to soiling by baked-on organic food deposits comprising the steps of: a. applying to the surface a food-safe composition consisting essentially of: i. water; ii. a food-safe, inorganic thickening agent which is a smectite clay material substantially insoluble in an alkaline aqueous composition, and which is present in an amount sufficient so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; iii. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of phosphates and condensed phosphates in an amount sufficient so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and iv. a high-boiling, organic component which is selected from the group consisting of vegetable oils and animal-derived fatty materials, to form a continuous coating on the surface; b. drying the continuous coating to form a film; c. allowing the film to become soiled; and d. removing the soiled film by contacting the soiled film with water or an aqueous solution.
Claim 40
Dependent Claim
14 words
The method of claim 32 wherein the thickening agent is a magnesium aluminum silicate.
Claim 41
Dependent Claim
28 words
The method of claim 32 wherein the thickening agent is present in said composition in a relative amount of about 0.5 parts to about 10.0 parts by weight.
Claim 42
Dependent Claim
25 words
The method of claim 32 wherein the at least one water-soluble inorganic salt is selected from the group consisting of tripotassium phosphate and sodium tripolyphosphate.
Claim 43
Dependent Claim
28 words
The method of claim 32 wherein the water-soluble inorganic salt is present in said composition in a relative amount of about 0.05 to about 67 parts by weight.
Claim 44
Dependent Claim
14 words
The method of claim 32 wherein the high-boiling, organic component is a soybean oil.
Claim 45
Dependent Claim
28 words
The method of claim 32 wherein the high-boiling, organic component is present in said composition in a relative amount of about 4 to about 20 parts by weight.
Claim 46
Dependent Claim
23 words
The method of claim 32 wherein the composition, prior to application to the surface, has a pH from about 9.0 to about 14.0.
Claim 47
Dependent Claim
17 words
The method of claim 32 wherein the composition also consists essentially of a alkali metal halide salt.
Claim 48
Dependent Claim
16 words
The method of claim 32 wherein the composition also consists essentially of a food-safe, alkali-stable dye.
Claim 49
Dependent Claim
16 words
The method of claim 32 wherein the composition is applied by spraying, wiping, brushing or dipping.
Claim 50
Dependent Claim
13 words
The method of claim 32 wherein the continuous coating is dried by heating.
Claim 51
Dependent Claim
24 words
The method of claim 32 wherein the soiled film is removed by wiping with a wiping implement wet with water or an aqueous solution.
Claim 52
Dependent Claim
21 words
The method of claim 32 further comprising the additional step of reapplying the composition to the surface after said removal step.
Claim 53
Independent Claim
244 words
A method for cleaning a desired surface which is subjected to heat and liable to soiling by baked-on organic food deposits comprising the steps of: a. applying to the surface a food-safe composition consisting essentially of: i. water; ii. a food-safe, inorganic thickening agent which contains predominantly montmorillonite clay and is substantially insoluble in an alkaline aqueous composition, said thickening agent being present in said composition in a relative amount of about 0.5 to about 10.0 parts by weight, so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; iii. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of tripotassium phosphate, sodium tripolyphosphate and potassium tripolyphosphate, present in said composition in a relative amount of about 0.5 to about 67.0 parts by weight, so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and iv. a soybean oil present in said composition in a relative amount of about 4 to about 20 parts by weight, so that the continuous coating remains continuous as the coating dries; to form a continuous coating on the surface; b. drying the continuous coating to form a film; c. allowing the film to become soiled; d. removing the soiled film by contacting the soiled film with water or an aqueous solution; and e. reapplying the composition to the surface after the removal step (d).
Claim 54
Independent Claim
244 words
A method for cleaning a desired surface which is subjected to heat and liable to soiling by baked-on organic food deposits comprising the steps of: a. applying to the surface a food-safe composition consisting essentially of: i. water; ii. a food-safe, inorganic thickening agent which contains predominantly montmorillonite clay and is substantially insoluble in an alkaline aqueous composition, said thickening agent being present in said composition in a relative amount of about 0.5 to about 10.0 parts by weight, so that the composition is capable of forming a continuous coating adhered to all desired portions of the surface; iii. at least one alkaline, food-safe, water-soluble inorganic salt selected from the group consisting of tripotassium phosphate, sodium tripolyphosphate and potassium tripolyphosphate, present in said composition in a relative amount of about 0.5 to about 67.0 parts by weight, so that the composition is readily removable with water or an aqueous solution after the composition has been dried and soiled; and iv. a soybean oil present in said composition in a relative amount of about 4 to about 20 parts by weight, so that the continuous coating remains continuous as the coating dries; to form a continuous coating on the surface; b. drying the continuous coating to form a film; c. allowing the film to become soiled; d. removing the soiled film by contacting the soiled film with water or an aqueous solution; and e. reapplying the composition to the surface after the removal step (d).
Claim 55
Dependent Claim
24 words
The method of claim 46 wherein at least one water-soluble inorganic salt is selected from the group consisting of tripotassium phosphate and sodium tripolyphosphate.
Claim 56
Dependent Claim
24 words
The method of claim 45 wherein the composition, prior to being applied to the surface, has a pH from about 9.0 to about 14.0.
Claim 57
Dependent Claim
17 words
The method of claim 46 wherein the composition also consists essentially of an alkali metal halide salt.
Claim 58
Dependent Claim
16 words
The method of claim 46 wherein the composition also consists essentially of a food-safe, alkali-stable dye.
Claim 59
Dependent Claim
14 words
The method of claim 46 wherein the composition is applied or reapplied by spraying.
Claim 60
Dependent Claim
33 words
The method of claim 46 wherein the continuous coating is dried by heating a convective air flow in contact with the surface to a temperature from about 200° F. to about 550° F.
Claim 61
Dependent Claim
27 words
The method of claim 52 wherein the continuous coating is dried by heating at a temperature of about 400° to about 450° F. to form a film.
Claim 62
Dependent Claim
16 words
The method of claim 46 wherein the surface is that of an oven or a boiler.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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