Crosslinkable reactive polymers
US9228039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2013 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Crosslinkable reactive polymers comprise -A- and —B— recurring units, arranged randomly along a backbone. The -A- recurring units comprise pendant aromatic sulfonic acid oxime ester groups that are capable of providing pendant aromatic sulfonic acid groups upon irradiation with radiation having a λmax of at least 150 nm and up to and including 450 nm. The -A- recurring units are present in the reactive polymer in an amount of greater than 50 mol % and up to and including 98 mol % based on total reactive polymer recurring units. The —B— recurring units comprise pendant groups that provide crosslinking upon generation of the aromatic sulfonic acid groups in the -A- recurring units. The —B— recurring units are present in an amount of at least 2 mol %, based on total reactive polymer recurring units. These reactive polymers can be used in various pattern-forming methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.