Composition for light diffusion film, and light diffusion film
US9869803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | May 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/123
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a composition for light diffusion film which has satisfactory incident angle dependency in transmission and diffusion of light, does not easily undergo yellowing even if exposed to ultraviolet radiation for a long time, and has excellent weather resistance, and a light diffusion film formed by curing the composition. Disclosed is a composition for light diffusion film, which includes a (meth)acrylic acid ester containing plural aromatic rings as component (A), a urethane (meth)acrylate as component (B), a photopolymerization initiator as component (C), and a hindered amine-based photostabilizer as component (D), and in which the content of the component (A) has a value within a predetermined range relative to 100 parts by weight of the component (B), the content of the component (C) has a value within a predetermined range relative to the total amount (100 parts by weight) of the component (A) and the component (B), and the content of the component (D) has a value within a predetermined range relative to the total amount (100 parts by weight) of the component (A) and the component (B).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.