Water based stencil filler
US5525655A · kind A · utility
3Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1994 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Dec 13, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L93/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water based stencil filler that can be cleaned off monuments with a water wash, the filler being comprised of a tackified elastomer aqueous dispersion formulation containing (a) a rosin derived resinous composition which is a substantially a polyhydric alcohol rosin ester dispersion, (b)a carboxyl-containing rosin derived resinous composition having an acid value of from 30 to 150 and a softening point of from -25 C to 150 C, at least partially neutralized with a counter ion capable of carrying the resinous composition into solution or dispersion in water, (c) a supplemental surfactant, and (d) a rubber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.