Title:
【発明の名称】光学材料の製造法
Document Type and Number:
Japanese Patent JP2778988
Kind Code:
B2
Abstract:
PURPOSE:To decrease the amt. of the unreacted monomer included in a surface part by irradiating the specific optical disk substrate with UV rays in an inert gaseous atmosphere to increase the degree of polymn. of the optical disk substrate. CONSTITUTION:The multifunctional (meth)acrylate compd. expressed by formula I is subjected to radical polymn. and the polymer is formed as a plate body or worked to the plate body. The resulted optical disk substrate is irradiated with UV rays in the inert gaseous atmosphere to increase the degree of polymn. of the optical disk surface. In the formula I, R1 and R2 may be the same or different and are respectively hydrogen or methyl group; n is 0 or 1 integer. The remaining rate of the unreacted monomer of the surface is decreased in this way and the corrosion of a thin metallic film, such as recording film, is suppressed.
Inventors:
ARITOMI MITSUTOSHI
SANO YOKO
USAMI TAKAO
SANO YOKO
USAMI TAKAO
Application Number:
JP14701289A
Publication Date:
July 23, 1998
Filing Date:
June 09, 1989
Export Citation:
Assignee:
MITSUBISHI KAGAKU KK
International Classes:
C08F6/26; B29D11/00; B29D17/00; C08F6/06; C08F8/00; C08F20/10; C08F20/20; G11B7/24047; G11B7/244; G11B7/2533; B29K33/00; (IPC1-7): B29D11/00; B29D17/00; C08F6/26; C08F8/00; C08F20/20; G11B7/24
Domestic Patent References:
| JP61174208A | ||||
| JP63214375A |
Attorney, Agent or Firm:
Kazuo Sato (2 outside)