Invention Grant
- Patent Title: Solvent compositions and process for manufacturing an optical recording medium using said composition and optical recording medium
- Patent Title (中): 溶剂组合物和使用所述组合物和光记录介质制造光记录介质的方法
-
Application No.: US10533614Application Date: 2003-01-21
-
Publication No.: US07674568B2Publication Date: 2010-03-09
- Inventor: Bruce Milner , Jitka Brynjolffssen , Timothy Parks , Wolfgang Freitag
- Applicant: Bruce Milner , Jitka Brynjolffssen , Timothy Parks , Wolfgang Freitag
- Applicant Address: US NY Tarrytown
- Assignee: Ciba Specialty Chemicals Corporation
- Current Assignee: Ciba Specialty Chemicals Corporation
- Current Assignee Address: US NY Tarrytown
- Agent Joseph C. Suhadolnik
- Priority: GB0225471.2 20021101
- International Application: PCT/EP03/00541 WO 20030121
- International Announcement: WO03/034146 WO 20030424
- Main IPC: G11B7/24
- IPC: G11B7/24

Abstract:
The present invention relates to a new solvent composition useful in the process of manufacturing an optical recording medium. The invention provides a new liquid composition comprising from 0.1 to 20% by weight of a dye having a solid state absorption band maximum in the spectral region from 300 to 800 nm, from 0.5 to 99.9% by weight of a compound of formula (I), wherein R1 to R8 are H, CH3 or C2H5, with the proviso that the total number of carbon atoms in R1 to R8 is 0, 1 or 2, and optionally from 0 to 99.4% by weight of one or more further components, all based on the weight of the solution. The instant solvent composition enables to manufacture an optical recording medium of a single recording layer type capable of recording and playing a large volume of information using commercially available compact disc recorders and players and of superior performance in an amazing wide range of drive speeds. A further subject-matter is an optical recording disk with improved groove filling and preferably particular groove geometry.
Public/Granted literature
- US20060105133A1 Solvent composition and use thereof Public/Granted day:2006-05-18
Information query
IPC分类: