Method of making sludge powder and sealant from paint sludge and sludge powder and sealant compositions produced thereby
US5254263A · kind A · utility
16Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1992 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Jul 29, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A sludge powder and sealant are prepared from paint sludge. A sludge powder is generated from a paint sludge having a volatiles content of 0-50% by weight by adding a processing filler thereto. A sealant composition is prepared by thereafter or concurrently therewith adding sealant ingredients including polymer, plasticizer, curative, and other sealant ingredients such as an adhesion promoter and sealant filler materials to the sludge powder. Alternatively, a sealant composition may be prepared by adding a paint sludge having a volatiles content of 0-50% by weight to the sealant ingredients, which may include a processing filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.