Aqueous compositions for stripping paints and primers with a high degree of crosslinking
US5980626A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Dec 8, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This composition for stripping paints coating a substrate, in particular for stripping paints and primers with a high degree of crosslinking, in particular of the epoxy, polyurethane and alkyd type, is characterized in that it consists of or comprises: (A) 50 to 80 parts by weight of water; (B) 20 to 50 parts by weight of benzaldehyde and/or of benzyl alcohol; (C) 5 to 15 parts by weight of at least one activator chosen from formic acid, formic acid totally or partially neutralized with a base, and bases; and (D) 0.5 to 10 parts by weight of at least one thickener, the said thickener necessarily being a thickener of acrylic nature when (B) consists solely of benzyl alcohol, (A)+(B) representing 100 parts by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.