Silicone conveyor lubricant with stoichiometric amount of an acid
AssigneeEcolab Inc.
InventorsEric D. Morrison, Richard D. Johnson, Robert D. Hei
Life of this patent
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Abstract
The passage of a container along a conveyor is lubricated by applying to the container or conveyor a composition comprising a water-miscible silicone material wherein the composition comprises a stoichiometric amount of an organic acid. The compatibility of the lubricating composition with polyethylene terephthalate is increased because of the presence of a stoichiometric amount of acid.
Claims21
A method for lubricating the passage of a container along a conveyor, comprising
- a. providing a lubricant concentrate composition comprising
- i. from about 0.05% to about 20% of a water-miscible silicone material;
- and
- ii. one or more acid compounds in an amount sufficient to provide at least one equivalent of available, unneutralized acid for every two equivalents of alkalinity in water used to dilute the lubricant concentrate;
- b. diluting the lubricant concentrate with water in a ratio of one part lubricant concentrate to 100 to 1000 parts water to form a lubricant use composition;
- and
- c. applying the lubricant use composition to at least a portion of the container-contacting surface of the conveyor or to at least a portion of the conveyor-contacting surface of the container;
- wherein the pH of the lubricant use composition is less than about 6.4.
A method for lubricating the passage of a container along a conveyor, comprising:
- a. providing a lubricant concentrate composition comprising
- i. from about 0.05% to about 20.0% of a water-miscible silicone material;
- and
- ii. greater than about 0.05 equivalents of acid per Kg of the lubricant concentrate composition before reaction with alkalinity in water used to prepare the lubricant use composition;
- b. diluting the lubricant concentration composition with water to form a lubricant use composition;
- and
- c. applying the lubricant use composition to at least a portion of the container-contacting surface of the conveyor or to at least a portion of the conveyor-contacting surface of the container;
- wherein the pH of the lubricant use composition is less than about 6.4.
A lubricant concentrate composition comprising from about 0.05 to about 20% of a water-miscible silicone material selected from the group consisting of silicone emulsion, finely divided silicone powder, and silicone surfactant and greater than about 0.05 equivalents of unneutralized acid per kg of the concentrate composition wherein the acid is selected from the group consisting of consisting of acetic, lactic, succinic, glutaric, adipic, and citric acid and mixtures thereof wherein the amount of unneutralized acid in the concentrate composition is sufficient to provide a pH of less than about 6.4 when in use.
Dependencies are inferred from the claim text.