Fumed silica as a paint stripper thickener
US4999126A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1988 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Aug 1, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of removing acrylic paints from the surfaces of paint spray booths which comprises the steps of PA0 (A) Coating the painted surfaces of paint spray booths with a thickened aromatic solvent paint stripper consisting essentially of: ______________________________________ Ingredients % by Weight ______________________________________ Aromatic solvent 90-95 Fumed silica having a specific 1-4 surface area of at least 100 m.sup.2 /g Oil-soluble surfactant having an 3-6 HLB not greater than 12 ______________________________________ PA0 (B) Allowing the stripper to contact the paint for a period of time sufficient to cause it to be dissolved from the surface; and then, PA0 (C) Removing the paint and stripper by means of water washing. These compositions are useful in removing acrylic paints from paint spray booths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.