Method for making a cathode ray tube
US5084225A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 6, 1989 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Jul 6, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/8913
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for making a cathode ray tube involves the step of positioning a non-reflective transparent plate in front of a face plate of a tube body with a given space therebetween; a step of filling the space with a resin composition and a step of heating the resin composition filled in the space to harden the composition to bond the tube body and the non-reflective transparent plate to each other. The resin composition is an unsaturated polyester resin composition which comprises an unsaturated polyester having a molecular weight per one unsaturated group of 1000 to 8000 and (1) a polymerizable monomer, a low-temperature hardener and a high-temperature hardener or (2) styrene and/or a derivative thereof and an unsaturated compound having a refractive index of 1.5 or less. This composition can be molded in a short time and forms no strain on hardening and serves as an adhesive for production of the cathode ray tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.