Method for making a cathode ray tube

Details Method for making a cathode ray tube Method for making a cathode ray tube

1989-07-06

1992-01-28

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264294, B29C 3912, B32B 3106

Patent

active

050842250

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.

REFERENCES:
patent: 4185220 (1980-01-01), Oberg
patent: 4599274 (1986-07-01), Ando et al.
patent: 4641059 (1987-02-01), Sumiyoshi et al.

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