Non-ghosting pressure sensitive adhesives
US4644032A · kind A · utility
4Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1984 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Sep 4, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J157/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pressure-sensitive adhesive having non-ghosting characteristic comprising a latex of polymers having pendent oxazoline groups, coreactive groups and a tackifier. The latex comprises discrete polymer particles having both pendent oxazoline and coreactive groups or a blend of discrete polymer particles one portion of which has pendent oxazoline groups and the other portion of which has pendent coreactive groups. The oxazoline group is preferably 2-isopropenyl-2-oxazoline and the coreactive group is a carboxyl, sulfonic acid, anhydride, phenolic, hydroxyl, amide or amine group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.