Precision machinery component
US4366516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1980 |
| Grant date | Dec 28, 1982 |
| Priority date | — |
| Expiry date | May 27, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/063
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Precision machinerycomponents such as a cylinder in a magnetic tape scanning apparatus, a cylinder base and/or a sub-chassis in a video tape recorder, etc. made of cured thermosetting resin composition comprising (A) a resin component comprising, particularly preferably, a terephthalic acid series unsaturated polyester resin, styrene and a saturated polyester resin, (B) an inorganic filler, and (C) short fibrous material such as carbon short fibers, have excellent dimensional accuracy and dimensional stability. When these precision machinery components are used, for example, in a video tape recorder, the same clear VTR picture as in the case of using those made of metal can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.