High density information disc lubricants
US4416789A · kind A · utility
7Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1982 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Feb 1, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
High density information discs comprising a conductive carbon-loaded polyvinylchloride disc is lubricated with a fractionated methyl alkyl siloxane lubricant which contains a long chain alkyl substituted betaine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.