Glass manufacturing – Processes – With chemically reactive treatment of glass preform
Patent
1995-12-27
1998-11-24
Silverman, Stanley S.
Glass manufacturing
Processes
With chemically reactive treatment of glass preform
65 323, 65 325, 65 333, 65102, C03B 23037, C03C 2300
Patent
active
058400966
ABSTRACT:
A process for producing a polarizing glass containing shape-anisotropic metallic particles dispersed in an oriented state therein, which comprises drawing a glass preform containing metallic halide particles dispersed therein while its viscosity being held above 2.times.10.sup.6, but below 7.times.10.sup.7 poises; and subjecting the drawn glass to a reducing treatment so that a part or all of the metallic halide particles are reduced to metallic particles, which process enables it to produce a polarizing glass with a high yield from a starting material of a glass containing metallic halide particles, while avoiding glass to breakage or fracture during elongation as well as preventing the elongated metallic halide particles from returning to a spherical shape.
REFERENCES:
patent: 3653863 (1972-04-01), Araujo et al.
patent: 3954485 (1976-05-01), Seward, III et al.
patent: 4282022 (1981-08-01), Lo et al.
patent: 4304584 (1981-12-01), Borelli et al.
patent: 4339256 (1982-07-01), Simms
patent: 4479819 (1984-10-01), Borelli et al.
patent: 4486213 (1984-12-01), Lentz et al.
patent: 4908054 (1990-03-01), Jones et al.
patent: 5430573 (1995-07-01), Araujo et al.
Patent Abstracts of Japan, vol. 017, No. 647, Dec. 1993 (JP-A-05-208844).
Patent Abstracts of Japan, vol. 015, No. 369, Sep. 1991 (JP-A-03 146433).
Patent Abstracts of Japan, vol. 015, No. 377, Sep. 1991 (JP-A-03 153538).
Matsuoka Yoshihiko
Miyashita Yukari
Tajima Hidemi
Takahashi Takeshi
Hoya Corporation
Silverman Stanley S.
Vincent Sean
LandOfFree
Process for the production of polarizing glass does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the production of polarizing glass, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of polarizing glass will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1697972