Compositions for the Removal of Silicone Deposits
AssigneeNuGeneration Technologies, LLC dba NuGenTec
InventorsDonato Polignone, Stephen Utschig-Samuels
Life of this patent
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Abstract
A solvent composition has an oxygenated solvent and a siloxane solvent. In one embodiment, the oxygenated solvent is propylene glycol methyl ether and the siloxane solvent is hexamethyldisiloxane or octamethyltrisiloxane. In another embodiment, the solvent composition is an azeotrope of propylene glycol n-butyl ether and decamethyltetrasiloxane. The siloxane solvent can be used in any situation where one desires to remove a silicone deposit, e.g., conformal coatings, adhesives, sealants, greases, heat transfer fluids, paints, oils, etc.
Claims20
A method of removing a silicone deposit, comprising:
- providing a solvent composition including an oxygenated solvent and a siloxane solvent;
- providing an object including a silicone deposit disposed on the object;
- and
- removing the silicone deposit by using the solvent composition to dissolve the silicone deposit.
A method of removing a silicone coating, comprising:
- providing a printed circuit board (PCB) including a first electrical component mounted to the PCB and a silicone coating deposited over the PCB and first electrical component;
- providing a solvent composition including an oxygenated solvent and a siloxane solvent;
- using the solvent composition to remove a portion of the silicone coating over the first electrical component;
- and
- replacing the first electrical component with a second electrical component after removing the portion of the silicone coating.
A method of removing a silicone coating, comprising:
- providing a printed circuit board (PCB) including a first electrical component mounted to the PCB and a silicone coating deposited over the PCB and first electrical component;
- providing a solvent composition including an oxygenated solvent and a siloxane solvent;
- using the solvent composition to remove a first portion of the silicone coating over the first electrical component while a second portion of the silicone coating remains on the PCB;
- and
- replacing the first electrical component with a second electrical component after removing the portion of the silicone coating.
Dependencies are inferred from the claim text.