Coloring composition and method for producing film
US11169439B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2018 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Jan 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a coloring composition capable of producing a film with suppressed occurrence of striation, and a method for producing a film. The coloring composition includes a coloring agent A, a resin B, a polymerizable compound C, a photopolymerization initiator D, and an organic solvent E, in which the organic solvent E includes an ester-based solvent E1 having a surface tension at 25° C. of from 25 mN/m to 35 mN/m, an organic solvent E2 having a surface tension at 25° C. of less than 25 mN/m, a ratio of a mass of the ester-based solvent E1 to the mass of the organic solvent E2 is 80:20 to 30:70 in terms of the ratio of the mass of the ester-based solvent E1:the mass of the organic solvent E2, and the organic solvent E contains 50% by mass or more of a combination of the ester-based solvent E1 and the organic solvent E2 with respect to the total mass of the organic solvent E.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.