Transparent film and transparent electrode
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsNobuhiko Kusumoto, Keisuke Konomi, Madoka Yamaguchi
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Abstract
Provided is a transparent film having advantages such as excellent heat resistance, a birefringence that is not easily affected by the film forming conditions, and being uniform. According to one embodiment, there is provided a transparent film including a resin composition that includes a polycarbonate resin (A) having a structural unit represented by formula (1) and having a photoelastic coefficient of 80×10−12 m2/N or less.
Claims24
A transparent film comprising a resin composition including a polycarbonate resin (A) having a structural unit represented by formula (1) and a polycarbonate resin (B) including a structural unit represented by formula (3), said transparent film having a photoelastic coefficient of 80×10−12 m2/N or less:
- wherein R1 to R4 are each independently a hydrogen atom, an alkyl group, or an aryl group;
- and X is a single bond or a group represented by the following formula (2):
- wherein R5 and R6 are a hydrogen atom, an alkyl group, or an aryl group;
- and at least one of R5 and R6 is an aryl group,
- the resin composition comprises a mixture of the polycarbonate resin (A) and a polycarbonate resin (B), and
- a ratio of the polycarbonate resin (A) to a total mass of the polycarbonate resin (A) and the polycarbonate resin (B) is 10 to 90% by mass, and
- wherein the structural unit represented by formula (1) is, with respect to all of the structural units of the polycarbonate resin (A), included in a ratio of 95 to 100 mol %.
A transparent film comprising a resin composition including a polycarbonate resin (A) having a structural unit represented by formula (1) and a polycarbonate resin (B) including a structural unit represented by formula (3), said transparent film having a photoelastic coefficient of 80×10−12 m2/N or less:
- wherein R1 to R4 are each independently a hydrogen atom, an alkyl group, or an aryl group;
- and X is a single bond or a group represented by the following formula (2):
- wherein R5 and R6 are a hydrogen atom, an alkyl group, or an aryl group;
- and at least one of R5 and R6 is an aryl group,
- the resin composition comprises a mixture of the polycarbonate resin (A) and a polycarbonate resin (B),
- a ratio of the polycarbonate resin (A) to a total mass of the polycarbonate resin (A) and the polycarbonate resin (B) is 10 to 90% by mass, and
- the resin composition comprises 10% by mass or less of a resin other than the polycarbonate resin (A) and the polycarbonate resin (B).
Dependencies are inferred from the claim text.