Laminate roll
US7285332B2 · kind B2 · utility
1Cited by
5References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 2, 2002 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Dec 2, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31797
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wound laminate obtained by laminating a plastic film composed of an aromatic polycarbonate comprising bisphenol A as an aromatic dihydroxy component, and a protective film composed of an aromatic polyester, using an intervening adhesive having a weak adhesive strength of 3-50 gf (0.0294-0.49 N), and winding the laminate. The wound laminate is used as a transparent protective layer (protective film) for an optical disk to fabricate a film surface side-incident optical disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.