Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1984-07-02
1986-05-06
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 16, 350 9631, 427163, G02B 600
Patent
active
045870659
ABSTRACT:
A method of producing a light transmitting article of synthetic resin by polymerizing incompletely a monomer Ma which forms a network polymer Pa having a refractive index Na, thereby forming a self-supporting body material, and subsequently diffusing a monomer Mb, which forms a polymer Pb having a refractive index Nb different from the refractive index Na, into said body material and simultaneously polymerizing said monomer Mb, wherein said method comprises steps of drawing out continuously a body material from a molding means in which said body material has been formed and is ready for the diffusion of the monomer Mb, and passing said body material through a diffusion means and a heating means one after the other, diffusing the monomer Mb into said body material by the aid of said diffusion means and then heating said body material by the aid of said heating means so that the distribution of said monomer Mb is fixed in said body material.
According to this invention, a light transmitting article of synthetic resin is produced continuously in good quality.
REFERENCES:
patent: 3718383 (1973-02-01), Moore
patent: 3816160 (1974-06-01), Moore
patent: 3930103 (1975-12-01), Chimura et al.
patent: 3955015 (1976-05-01), Ohtsuka et al.
Kouichi Maeda
Masaaki Funaki
Motoaki Yoshida
Yasuji Ohtsuka
Lowe James
Nippon Sheet Glass Co. Ltd.
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