04374077 is referenced by 79 patents and cites 25 patents.

Imperfections in the surface of information carrying discs, such as video discs, are avoided by an improved process of manufacture. A bead of photopolymerizable mass is moved between two surfaces, one of which is a patterned surface and the other is a surface to which the photopolymerizable mass will bond upon polymerizing. By moving the liquid mass across the patterned surface, air within the pattern is removed by the leading edge of the bead, reducing imperfections.

Title
Process for making information carrying discs
Application Number
6/117467
Publication Number
4374077
Application Date
February 1, 1980
Publication Date
February 15, 1983
Inventor
Donald J Kerfeld
St. Paul
MN, US
Agent
Mark A Litman
Donald M Sell
Cruzan Alexander
Assignee
Minnesota Mining and Manufacturing Company
MN, US
IPC
B29D 11/00
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