Patent ID: 11866564
Assignee: TEIJIN LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. The polymer substrate with a hard coat layer according to claim 1, wherein the silicon oxide layer satisfies all of the following requirements (a1) to (c1) at a position 0.04 μm from the interface between the cured underlayer and the silicon oxide layer in the thickness direction, and satisfies all of the following requirements (b3) to (c3) on the surface on the side opposite the interface:
(a1) when the chemical composition is represented by SiOxCyHz, x is in the range of 1.93 to 1.98, y is in the range of 0.04 to 0.15, and z is in the range of 0.10 to 0.45,
(b1) the ratio of infrared absorbance at a wave number of 930 cm−1 to that at a wave number of 1020 cm−1 (α930/α1020) is in the range of 0.10 to 0.20,
(c1) the ratio of infrared absorbance at a wave number of 1280 cm−1 to that at a wave number of 1020 cm−1 (α1280/α1020) is in the range of 0 to 0.005,
(b3) the ratio of infrared absorbance at a wave number of 930 cm−1 to that at a wave number of 1020 cm−1 (α930/α1020) is in the range of 0.15 to 0.25, and
(c3) the ratio of infrared absorbance at a wave number of 1280 cm−1 to that at a wave number of 1020 cm−1 (α1280/α1020) is in the range of 0.002 to 0.020.