Thermographic materials with highly polymerized binder polymer
US7279443B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Jun 24, 2005 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Jun 2, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/47
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A direct thermographic material has one or more thermographic layers comprising a film-forming polymer binder on a polymeric support. The binder for at least one thermographic layer comprises a hydrophobic, organic soluble binder that is a polyvinyl acetal having a degree of polymerization greater than 650 and less than 2500.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.