Elastomeric videodisc mold

Details Elastomeric videodisc mold Elastomeric videodisc mold

1982-08-08

1983-11-15

Hoag, Willard E.

Static molds

Including coating or adherent layer

425810, B29C 114, B29D 1700

Patent

active

044151381

ABSTRACT:
A matrix is used to prepare a mold of an elastomeric material. A polymerizable compound is coated onto a flexible, thin substrate such as Mylar and is placed with compound side in intimate contact with the mold. The compound is cured and is bonded to the substrate. The cured combination is stripped from the mold and is given a metallic coating to improve reflectivity. A clear plastic coating may be applied to protect the metal surface.

REFERENCES:
patent: 2714226 (1955-08-01), Axelrad
patent: 2998622 (1961-09-01), Renoux
patent: 3190947 (1965-06-01), Norcross
patent: 3658954 (1972-04-01), Broadbent
patent: 3671007 (1972-06-01), Bailey et al.

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