Sustained release coolant additive composition
AssigneesDober Chemical Corporation, Fleetguard, Inc.
InventorsYu-Sen Chen, Doug Hudgens, Thomas J. Blakemore, Joseph C. Drozd
Life of this patent
Estimating the term…
Abstract
A coolant additive composition comprising a sustained release component and an additive component, the additive component is effective to provide at least one benefit to a coolant when released into the coolant, the sustained release component includes a polymeric material and is effective to reduce the rate of release of the additive component into the coolant relative to an identical composition without the sustained release component.
Claims28
A coolant additive composition comprising:
- a matrix material and an additive component, the additive component being distributed substantially throughout the matrix material and effective, when released into a coolant, to provide at least one benefit to the coolant,
- the matrix material is effective to reduce the rate of release of the additive component into the coolant relative to an identical composition without the matrix material.
A method of producing an additive composition for providing a benefit to a coolant, comprising the steps of:
- combining an additive component with a matrix material to form a mixture, the additive component being distributed substantially throughout the matrix material and being effective to provide at least one benefit to a coolant when released into the coolant, the matrix material comprising a polymeric material, and
- forming one or more discrete units of the mixture, the matrix material being present in an amount effective, when the one or more discrete units are contacted with a coolant, to reduce the rate of release of the additive component into the coolant.
A method of producing an additive composition for providing a benefit to a coolant comprising the steps of:
- providing an additive composition including at least one additive effective, when released into a coolant, to provide a benefit to the coolant;
- and
- providing a coating material on the additive composition to form a coated additive composition, the coating material being partially coolant soluble and effective, when the coated additive composition is contacted with a coolant, to reduce the rate of release of the additive composition into a coolant relative to an identical additive composition without the coating material, the coating material further including a portion which is soluble in a coolant and is effective, when released into the coolant, to provide at least one benefit to the coolant.
A coolant additive composition comprising a sustained release component including both a matrix and a coating, and an additive component distributed substantially throughout the matrix material, the additive component is effective to provide at least one benefit to a coolant when released into the coolant,
- the sustained release component is partially soluble in the coolant and is effective to reduce the rate of release of the additive component into the coolant relative to an identical composition without the sustained release component.
Dependencies are inferred from the claim text.