Patterned film article comprising cleavable crosslinker and methods
US10768528B2 · kind B2 · utility
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22References
5Claims
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Key dates
| Filing date | Sep 15, 2016 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | May 19, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2433/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A pattern article comprising a copolymer having polymerized units derived from a cleavable crosslinking monomer, to which a pattern is imparted by the release of incipient acid from a thermal acid generator or photoacid generator. The selective release of the acid provides a pattern of high crosslink density and low crosslink density as result of the incipient acid cleaving a portion of the crosslinks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.