Degradable polymeric compositions and articles comprising same
US-2024425683-A1 · Dec 26, 2024 · US
Long obliquely-stretched film, and circularly polarising plate and organic EL display using long obliquely-stretched film
US9394415B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9394415-B2 |
| Application number | US-201214441147-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 6, 2012 |
| Priority date | Nov 6, 2012 |
| Publication date | Jul 19, 2016 |
| Grant date | Jul 19, 2016 |
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- Title
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Abstract
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A long obliquely-stretched film wound into a roll shape includes a thermoplastic resin and has an orientation angle oriented in a direction inclined with respect to a widthwise direction thereof. In a longitudinal direction of the long obliquely-stretched film, an angle defined between the orientation angle and the widthwise direction has a longitudinal cycle length of 10 mm to less than 1500 mm. An amplitude of the angle is in the range of 0.2° to 1.0° in the longitudinal cycle length.
First claim
Opening claim text (preview).
The invention claimed is: 1. A long obliquely-stretched film wound into a roll shape, comprising a thermoplastic resin and having an orientation angle oriented in a direction inclined with respect to a widthwise direction thereof, wherein, in a longitudinal direction of the long obliquely-stretched film, an angle defined between the orientation angle and the widthwise direction has a longitudinal cycle length of 10 mm to less than 1500 mm, and wherein an amplitude of the angle is in the range of 0.2° to 1.0° in the longitudinal cycle length. 2. The long obliquely-stretched film as defined in claim 1 , which has a longitudinal length of 1000 m or more. 3. The long obliquely-stretched film as defined in claim 1 , which has a film thickness of 10 to 80 μm. 4. The long obliquely-stretched film as defined in claim 1 , which has a widthwise length of 500 mm or more. 5. The long obliquely-stretched film as defined in claim 1 , wherein a long film comprises a thermoplastic resin and has a photo-elastic coefficient of 1.0×10 −11 to 1.0×10 −10 (Pa −1 ). 6. The long obliquely-stretched film as defined in claim 1 , wherein the thermoplastic resin is a polycarbonate-based resin. 7. A circularly polarizing plate which is produced using the long obliquely-stretched film as defined in claim 1 . 8. An organic EL display which is produced using the circularly polarizing plate as defined in claim 7 .
Assignees
Inventors
Classifications
Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title
polarizing · CPC title
in the form of a thin sheet or foil, e.g. Polaroid · CPC title
Polarising · CPC title
in a direction which is not parallel or transverse to the direction of feed, e.g. oblique · CPC title
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- What does patent US9394415B2 cover?
- A long obliquely-stretched film wound into a roll shape includes a thermoplastic resin and has an orientation angle oriented in a direction inclined with respect to a widthwise direction thereof. In a longitudinal direction of the long obliquely-stretched film, an angle defined between the orientation angle and the widthwise direction has a longitudinal cycle length of 10 mm to less than 1500 m…
- Who is the assignee on this patent?
- Konica Minolta Inc
- What technology area does this patent fall under?
- Primary CPC classification C08J5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 19 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).