Correction tape having dye migration blocking properties
US6352770B1 · kind B1 · utility
6Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2000 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Jan 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to a correction tape that has a support member, a transfer layer, and a correction medium layer. The correction medium layer includes an opacifying pigment, binding polymer, and bleed inhibitor. Suitable bleed inhibitors include polyvinyl amine, phospholipids, tallow amines or combinations thereof. The bleed inhibitor is present in an amount of between about 0.1% to 10% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.