Preparation of a recording carrier
US6428872B1 · kind B1 · utility
0Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Apr 21, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a molded disc useful in optical information recording carriers, the disc is comprised of a copolymer of methyl methacrylate and ethyl acrylate, wherein the copolymer is comprised of 97 to 99.9 wt. % of methyl methacrylate and 0.1 to 3 weight % ethyl acrylate, has a molecular weight in the range of from 90,000 to 115,000, has a Tg of from 105° C. to 115.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.