Removable, water-whitening resistant pressure sensitive adhesives
US7339002B2 · kind B2 · utility
7Cited by
4References
51Claims
0Family size
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Key dates
| Filing date | Sep 25, 2003 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Oct 11, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Removable, water-whitening resistant pressure sensitive adhesive (PSA) comprising a crosslinked aqueous emulsion polymer comprising (a) at least one hydrophobic monomer; (b) at least about 2 wt. % of at least one hydrophilic monomer; and (c) at least about 5 wt. % of at least one partially hydrophilic monomer; wherein the crosslinked aqueous emulsion polymer is crosslinked with an effective amount of at least one polyfunctional aziridine crosslinker, and the wt. % of monomers (a), (b), and (c) are based on the total weight of monomers (a), (b), and (c).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.